NSR Query Results
Output year order : Descending NSR database version of March 18, 2024. Search: Author = H.L.Crawford Found 94 matches. 2023AY02 Phys.Rev. C 107, 044314 (2023) A.D.Ayangeakaa, R.V.F.Janssens, S.Zhu, J.M.Allmond, B.A.Brown, C.Y.Wu, M.Albers, K.Auranen, B.Bucher, M.P.Carpenter, P.Chowdhury, D.Cline, H.L.Crawford, P.Fallon, A.M.Forney, A.Gade, D.J.Hartley, A.B.Hayes, J.Henderson, F.G.Kondev, Krishichayan, T.Lauritsen, J.Li, D.Little, A.O.Macchiavelli, D.Rhodes, D.Seweryniak, S.M.Stolze, W.B.Walters, J.Wu Triaxiality and the nature of low-energy excitations in 76Ge NUCLEAR REACTIONS 208Pb(76Ge, 76Ge'), E=291, 304, 317 MeV; measured Eγ, Iγ, (76Ge)γ-coin using the GRETINA array with 28 Ge crystals in one experiment at 304-MeV beam energy, and 42 Ge crystals in a second experiment at 291- and 317-MeV beam energies, both in coincidence with scattered particles detected by using the CHICO2 array of position-sensitive parallel plate avalanche counters at the ATLAS-ANL facility. 76Ge; deduced levels, Jπ, γ-ray and Coulomb excitation yields analyzed by using the semiclassical, coupled-channel, Coulomb excitation least-squares code GOSIA, constrained by certain previouly known experimental nuclear structure parameters, E2, M1, E1 and E3 matrix elements, B(E2), B(M1), B(E1) and B(E3), spectroscopic quadrupole moments for five excited states, and evidence for rigid triaxial deformation at low excitation energies in 76Ge, and magnitudes of the quadrupole invariants Q+2, and expectation values of the quadrupole asymmetry parameters cos(3γ) for the members of the ground-state and the γ bands. Comparison with configuration interaction shell-model calculations and generalized triaxial rotor model, and with previous experimental data.
doi: 10.1103/PhysRevC.107.044314
2023BO18 Phys.Rev. C 108, 034604 (2023) M.Bowry, O.B.Tarasov, J.S.Berryman, V.Bader, D.Bazin, T.Chupp, H.L.Crawford, A.Gade, E.Lunderberg, A.Ratkiewicz, F.Recchia, B.M.Sherrill, D.Smalley, A.Stolz, S.R.Stroberg, D.Weisshaar, S.Williams, K.Wimmer, J.Yurkon Abrasion-fission reactions at intermediate energies
doi: 10.1103/PhysRevC.108.034604
2023GR04 Phys.Rev.Lett. 130, 242501 (2023) T.J.Gray, J.M.Allmond, Z.Xu, T.T.King, R.S.Lubna, H.L.Crawford, V.Tripathi, B.P.Crider, R.Grzywacz, S.N.Liddick, A.O.Macchiavelli, T.Miyagi, A.Poves, A.Andalib, E.Argo, C.Benetti, S.Bhattacharya, C.M.Campbell, M.P.Carpenter, J.Chan, A.Chester, J.Christie, B.R.Clark, I.Cox, A.A.Doetsch, J.Dopfer, J.G.Duarte, P.Fallon, A.Frotscher, T.Gaballah, J.T.Harke, J.Heideman, H.Huegen, J.D.Holt, R.Jain, N.Kitamura, K.Kolos, F.G.Kondev, A.Laminack, B.Longfellow, S.Luitel, M.Madurga, R.Mahajan, M.J.Mogannam, C.Morse, S.Neupane, A.Nowicki, T.H.Ogunbeku, W.-J.Ong, C.Porzio, C.J.Prokop, B.C.Rasco, E.K.Ronning, E.Rubino, T.J.Ruland, K.P.Rykaczewski, L.Schaedig, D.Seweryniak, K.Siegl, M.Singh, A.E.Stuchbery, S.L.Tabor, T.L.Tang, T.Wheeler, J.A.Winger, J.L.Wood Microsecond Isomer at the N=20 Island of Shape Inversion Observed at FRIB RADIOACTIVITY 32Na(IT), (β-) [from 9Be(48Ca, X), E=172.3 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies, partial level scheme, isomeric T1/2, B(E2), single-particle occupancies. Comparison with calculations. The Advanced Rare Isotope Separator (ARIS), the FRIB Decay Station initiator (FDSi).
doi: 10.1103/PhysRevLett.130.242501
2023LU07 Phys.Rev. C 108, 014329 (2023) R.S.Lubna, S.N.Liddick, T.H.Ogunbeku, A.Chester, J.M.Allmond, S.Bhattacharya, C.M.Campbell, M.P.Carpenter, K.L.Childers, P.Chowdhury, J.Christie, B.R.Clark, R.M.Clark, I.Cox, H.L.Crawford, B.P.Crider, A.A.Doetsch, P.Fallon, A.Frotscher, T.Gaballah, T.J.Gray, R.Grzywacz, J.T.Harke, A.C.Hartley, R.Jain, T.T.King, N.Kitamura, K.Kolos, F.G.Kondev, E.Lamere, R.Lewis, B.Longfellow, S.Lyons, S.Luitel, M.Madurga, R.Mahajan, M.J.Mogannam, C.Morse, S.K.Neupane, W.-J.Ong, D.Perez-Loureiro, C.Porzio, C.J.Prokop, A.L.Richard, E.K.Ronning, E.Rubino, K.Rykaczewski, D.Seweryniak, K.Siegl, U.Silwal, M.Singh, D.P.Siwakoti, D.C.Smith, M.K.Smith, S.L.Tabor, T.L.Tang, V.Tripathi, A.Volya, T.Wheeler, Y.Xiao, Z.Xu β decay of 36Mg and 36Al: Identification of a β-decaying isomer in 36Al RADIOACTIVITY 36Mg, 36Al(β-)[from 9Be(48Ca, X), E=140 MeV/nucleon for experiment at NSCL and 9Be(48Ca, X), E=172.3 MeV/nucleon for experiment at FRIB]; 36Al, 36mAl(β-)[from 36Mg(β-); measured Eγ, Iγ; deduced T1/2. 36Al; deduced levels, J, π, newly-observed β-decaying isomer, T1/2 of the isomer. 36Si; deduced levels, J, π. Comparison to shell model calculations performed with the FSU interaction using code CoSMo. For experiment at NSCL - CeBr3 based implantation detector with position-sensitive photomultiplier tube was surrounded by 16 segmented germanium detectors (SeGa) and 15 LaBr3 detectors. For experiment at FRIB - YSO scintillator based implantation detector segmented into 48x48 pixels was surrounded by 11 HPGe clover detectors and LaBr3 detectors from one side and the neutron detector array VANDLE from the other side.
doi: 10.1103/PhysRevC.108.014329
2023WA18 Phys.Lett. B 843, 138038 (2023) H.Wang, M.Yasuda, Y.Kondo, T.Nakamura, J.A.Tostevin, K.Ogata, T.Otsuka, A.Poves, N.Shimizu, K.Yoshida, N.L.Achouri, H.Al Falou, L.Atar, T.Aumann, H.Baba, K.Boretzky, C.Caesar, D.Calvet, H.Chae, N.Chiga, A.Corsi, H.L.Crawford, F.Delaunay, A.Delbart, Q.Deshayes, Zs.Dombradi, C.Douma, Z.Elekes, P.Fallon, I.Gasparic, J.-M.Gheller, J.Gibelin, A.Gillibert, M.N.Harakeh, A.Hirayama, C.R.Hoffman, M.Holl, A.Horvat, A.Horvath, J.W.Hwang, T.Isobe, J.Kahlbow, N.Kalantar-Nayestanaki, S.Kawase, S.Kim, K.Kisamori, T.Kobayashi, D.Korper, S.Koyama, I.Kuti, V.Lapoux, S.Lindberg, F.M.Marques, S.Masuoka, J.Mayer, K.Miki, T.Murakami, M.A.Najafi, K.Nakano, N.Nakatsuka, T.Nilsson, A.Obertelli, N.A.Orr, H.Otsu, T.Ozaki, V.Panin, S.Paschalis, A.Revel, D.Rossi, A.T.Saito, T.Saito, M.Sasano, H.Sato, Y.Satou, H.Scheit, F.Schindler, P.Schrock, M.Shikata, Y.Shimizu, H.Simon, D.Sohler, O.Sorlin, L.Stuhl, S.Takeuchi, M.Tanaka, M.Thoennessen, H.Tornqvist, Y.Togano, T.Tomai, J.Tscheuschner, J.Tsubota, T.Uesaka, Z.Yang, K.Yoneda Intruder configurations in 29Ne at the transition into the island of inversion: Detailed structure study of 28Ne NUCLEAR REACTIONS 1H(29Ne, np)28Ne, E=240 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies and relative intensities, partial level scheme, J, π, one-neutron removal σ, parallel momentum distributions. Comparison with available data. The MINOS target was surrounded by the DALI2 array, the Radioactive Isotope Beam Factory (RIBF), operated by the RIKEN Nishina Center and the Center for Nuclear Study, University of Tokyo.
doi: 10.1016/j.physletb.2023.138038
2022CR03 Phys.Rev.Lett. 129, 212501 (2022) H.L.Crawford, V.Tripathi, J.M.Allmond, B.P.Crider, R.Grzywacz, S.N.Liddick, A.Andalib, E.Argo, C.Benetti, S.Bhattacharya, C.M.Campbell, M.P.Carpenter, J.Chan, A.Chester, J.Christie, B.R.Clark, I.Cox, A.A.Doetsch, J.Dopfer, J.G.Duarte, P.Fallon, A.Frotscher, T.Gaballah, T.J.Gray, J.T.Harke, J.Heideman, H.Heugen, R.Jain, T.T.King, N.Kitamura, K.Kolos, F.G.Kondev, A.Laminack, B.Longfellow, R.S.Lubna, S.Luitel, M.Madurga, R.Mahajan, M.J.Mogannam, C.Morse, S.Neupane, A.Nowicki, T.H.Ogunbeku, W.-J.Ong, C.Porzio, C.J.Prokop, B.C.Rasco, E.K.Ronning, E.Rubino, T.J.Ruland, K.P.Rykaczewski, L.Schaedig, D.Seweryniak, K.Siegl, M.Singh, S.L.Tabor, T.L.Tang, T.Wheeler, J.A.Winger, Z.Xu Crossing N = 28 Toward the Neutron Drip Line: First Measurement of Half-Lives at FRIB RADIOACTIVITY 44,45P, 42,43Si, 39,40,41Al, 36,37,38Mg, 35Na, 32Ne, 29F(β-), (β-n), (β-2n) [from 9Be(48Ca, X), E=172.3 MeV/nucleon]; measured decay products, Eβ, Iβ, En, In; deduced T1/2. Comparison with the latest quasiparticle random phase approximation and shell-model calculations and available data. The Facility for Rare Isotope Beams (FRIB) with the FRIB decay station initiator.
doi: 10.1103/PhysRevLett.129.212501
2022CR04 Phys.Rev. C 106, L061303 (2022) H.L.Crawford, M.D.Jones, A.O.Macchiavelli, P.Fallon, D.Bazin, P.C.Bender, B.A.Brown, C.M.Campbell, R.M.Clark, M.Cromaz, B.Elman, A.Gade, J.D.Holt, R.V.F.Janssens, I.Y.Lee, B.Longfellow, S.Paschalis, M.Petri, A.L.Richard, M.Salathe, J.A.Tostevin, D.Weisshaar Core of 25F studied by the 25F(-p) proton-removal reaction NUCLEAR REACTIONS 9Be(25F, 24O), E=77 MeV/nucleon; measured reaction products; deduced longitudinal momentum distribution, proton removal σ, spectroscopic factor. Results are interpreted within the framework of the Particle-Vibration Coupling (PVC) model, of a d5/2 proton coupled to a quadrupole phonon of an effective 24O core. Comparison to shell model predictions. Reaction products analyzed by spectrometer S800 (NSCL). Secondary 25F beam from 48Ca fragmentation on Be target at accelerated through the Coupled Cyclotron Facility.
doi: 10.1103/PhysRevC.106.L061303
2022GR08 Phys.Lett. B 834, 137446 (2022) T.J.Gray, J.M.Allmond, R.V.F.Janssens, W.Korten, A.E.Stuchbery, J.L.Wood, A.D.Ayangeakaa, S.Bottoni, B.M.Bucher, C.M.Campbell, M.P.Carpenter, H.L.Crawford, H.David, D.T.Doherty, P.Fallon, M.T.Febbraro, A.Galindo-Uribarri, C.J.Gross, M.Komorowska, F.G.Kondev, T.Lauritsen, A.O.Macchiavelli, P.Napiorkowsi, E.Padilla-Rodal, S.D.Pain, W.Reviol, D.G.Sarantites, G.Savard, D.Seweryniak, C.Y.Wu, C.-H.Yu, S.Zhu E2 rotational invariants of 01+ and 21+ states for 106Cd: The emergence of collective rotation NUCLEAR REACTIONS 208Pb(106Cd, 106Cd'), E=3.849 MeV/nucleon; measured Doppler-corrected γ-ray spectra, Eγ, Iγ, (106Cd)γ-coin using GRETINA array with 32 HPGe crystals for γ detection, and CHICO array for particles at the ATLAS-ANL facility. 106Cd; deduced levels, J, π, E2 and E3 matrix elements using GOSIA analysis code, E2 transition strengths, spectroscopic quadrupole moments, electric quadrupole invariants (Kumar-Cline sum rules) Q3cos(3δ), axial-symmetry parameter δ. Comparison with beyond mean-field (BMF) and shell-model calculations, and with previous experimental data.
doi: 10.1016/j.physletb.2022.137446
2022KA36 Phys.Rev.Lett. 129, 152501 (2022) B.P.Kay, T.L.Tang, I.A.Tolstukhin, G.B.Roderick, A.J.Mitchell, Y.Ayyad, S.A.Bennett, J.Chen, K.A.Chipps, H.L.Crawford, S.J.Freeman, K.Garrett, M.D.Gott, M.R.Hall, C.R.Hoffman, H.Jayatissa, A.O.Macchiavelli, P.T.MacGregor, D.K.Sharp, G.L.Wilson Quenching of Single-Particle Strength in A = 15 Nuclei NUCLEAR REACTIONS 2H(14C, p), (14N, p), E=10 MeV/nucleon; measured reaction products, Ep, Ip. 15C, 15N; deduced σ(θ), Q-value, the difference between the neutron and proton separation energies, degree of quenching. Comparison with the independent single-particle and shell model calculations. The HELIOS spectrometer at the ATLAS facility at Argonne National Laboratory.
doi: 10.1103/PhysRevLett.129.152501
2022MA05 Phys.Rev. C 105, 014309 (2022) A.O.Macchiavelli, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, I.Y.Lee, A.Gade, A.Poves, E.Rice Structure of 43P and 42Si in a two-level shape-coexistence model NUCLEAR STRUCTURE 43P; calculated excitation energies, proton Nilsson orbitals originating from the sd shell, electric quadrupole (Q) and magnetic dipole moments (μ), B(E2), B(M1). 42Si; calculated excitation energies, electric quadrupole moments (Q) and B(E2). Two-level mixing (collective) model of oblate and prolate coexisting shapes. Comparison with available experimental data. Application of the formalism to the proton knockout reaction σ from 43P to 42Si, and compared theoretical σ to experimental value in 2019Ga15: Phys. Rev. Lett. 122, 222501.
doi: 10.1103/PhysRevC.105.014309
2022MA23 Eur.Phys.J. A 58, 66 (2022) A.O.Macchiavelli, H.L.Crawford, P.Fallon, R.M.Clark, A.Poves Weak binding effects on the structure of 40Mg NUCLEAR STRUCTURE 40Mg; analyzed available data; deduced the coupling of weakly bound (halo) valence neutrons to a core, possible particle-core coupling schemes and their impact on the low-lying excitation spectrum.
doi: 10.1140/epja/s10050-022-00719-5
2022MA43 Eur.Phys.J. A 58, 144 (2022) A.O.Macchiavelli, H.L.Crawford, R.M.Clark, P.Fallon, I.Y.Lee, C.M.Campbell, M.Cromaz, A.Frotscher, C.Porzio, E.Rice Structure of 48, 49, 50Ca in a phenomenological shell model NUCLEAR STRUCTURE 48,49,50Ca; analyzed available data; calculated occupation probabilities, level occupancies, rms radii, B(E2), spectroscopic factors; deduced wavefunctions fit to the available data on spectroscopic factors derived from direct one neutron addition and removal reactions.
doi: 10.1140/epja/s10050-022-00763-1
2022MO05 Nucl.Instrum.Methods Phys.Res. A1025, 166155 (2022) C.Morse, H.L.Crawford, A.O.Macchiavelli, A.Wiens, M.Albers, A.D.Ayangeakaa, P.C.Bender, C.M.Campbell, M.P.Carpenter, P.Chowdhury, R.M.Clark, M.Cromaz, H.M.David, P.Fallon, R.V.F.Janssens, T.Lauritsen, I.-Y.Lee, C.J.Lister, D.Miller, V.S.Prasher, S.L.Tabor, D.Weisshaar, S.Zhu The polarization sensitivity of GRETINA NUCLEAR REACTIONS 24Mg(p, p'), E=2.45 MeV; measured reaction products, Eγ, Iγ. 25Mg; deduced γ-ray energies, J, π, polar angular distribution.
doi: 10.1016/j.nima.2021.166155
2021EL06 Phys.Rev. C 104, 024307 (2021) R.Elder, H.Iwasaki, J.Ash, D.Bazin, P.C.Bender, T.Braunroth, C.M.Campbell, H.L.Crawford, B.Elman, A.Gade, M.Grinder, N.Kobayashi, B.Longfellow, T.Mijatovic, J.Pereira, A.Revel, D.Rhodes, D.Weisshaar Lifetime measurements probing collectivity in the ground-state band of 32Mg NUCLEAR REACTIONS 9Be(34Si, 32Mg), (34Si, 30Mg), E=60 MeV/nucleon, [secondary 34Si beam from 9Be(48Ca, X), E=140 meV/nucleon primary reaction, followed by separation of fragments using A1900 fragment separator at the NSCL-Coupled Cyclotron Facility]; measured reaction products by time-of-flight and energy-loss measurements using the S800 spectrograph, Eγ, Iγ, (32Mg)γ-coin, half-lives of the first 2+ and 4+ levels in 32Mg and first 2+ in 30Mg using GRETINA array for γ detection and TRIPLEX plunger device. 30,32Mg; deduced levels, J, π, B(E2). Comparison with shell-model calculations using SDPF-M, SDPF-U-MIX, AMPGCM, EKK, USDA and CHFB+LQRPA interactions, and with previous experimental B(E2) results. Systematics of measured B(E2) for first 2+ state in even-even Z=12 isotopes from N=16 to N=24, and those of theoretical B(E2) from N=16 to N=28.
doi: 10.1103/PhysRevC.104.024307
2021MA21 Phys.Rev. C 103, 034307 (2021) A.O.Macchiavelli, H.L.Crawford, R.M.Clark, P.Fallon, I.Y.Lee, C.Morse, C.M.Campbell, M.Cromaz, C.Santamaria, J.Chen, C.R.Hoffman, B.P.Kay Coriolis coupling effects in proton-pickup spectroscopic factors from 12B NUCLEAR REACTIONS 2H(12B, 3He)11Be, E=12 MeV/nucleon; analyzed Coriolis coupling effects in proton-pickup spectroscopic factors extracted from experimental data in 2019Ch51. 11B; calculated levels, J, π, Coriolis mixing amplitudes of the proton Nilsson states using the particle rotor model (PRM) and compared with the experimental data. 11Be, 11B; calculated L=1 proton-removal spectroscopic factors from 1- 11B and 0+ 12C ground states using PRM, and compared with experimental data. 12B; deduced evidence of Coriolis coupling in the ground state.
doi: 10.1103/PhysRevC.103.034307
2021MC04 Phys.Rev. C 103, 064320 (2021) D.G.McNeel, A.H.Wuosmaa, S.A.Kuvin, J.Smith, B.B.Back, J.Chen, C.R.Hoffman, B.P.Kay, G.L.Wilson, D.K.Sharp, R.M.Clark, H.L.Crawford, P.Fallon, A.O.Macchiavelli Configuration mixing in 28Mg and the 26Mg(t, p)28Mg NUCLEAR REACTIONS 3H(26Mg, p)28Mg, E=160.6 MeV; 2H(26Mg, p)27Mg, E=160.6 MeV; measured reaction products, particle-identification spectra, E(p), I(p), σ(θ) using HELIOS magnetic spectrometer and auxiliary detectors at the ATLAS-ANL facility. 28Mg; deduced levels, J, π, L-transfers; calculated levels, J, π, proton- and neutron-occupation numbers for selected states in 28Mg using shell model with SDPF-MU interaction. DWBA analysis of σ(θ) distributions. Comparison with previous experimental data in the ENSDF database. 2H(26Mg, p)27Mg reaction used for energy-calibration and transport-efficiency information. Relevance to sd-fp cross-shell excitations between the valley of stability and the 'island of inversion'.
doi: 10.1103/PhysRevC.103.064320
2020BA52 Phys.Rev. C 102, 044329 (2020) R.Banik, S.Bhattacharyya, M.Rejmund, A.Lemasson, S.Biswas, A.Navin, Y.H.Kim, C.Michelagnoli, I.Stefan, P.Bednarczyk, S.Bhattacharya, E.Clement, H.L.Crawford, G.de France, P.Fallon, G.Fremont, J.Goupil, B.Jacquot, H.J.Li, J.Ljungvall, A.Maj, L.Menager, V.Morel, G.Mukherjee, R.Palit, R.M.Perez-Vidal, J.Ropert, C.Schmitt High-spin states above the isomers in neutron-rich iodine nuclei near N = 82 NUCLEAR REACTIONS 9Be(238U, F), E=6.2 MeV/nucleon; measured fission fragments using the VAMOS++ magnetic spectrometer and dual position-sensitive multiwire proportional counter (DPS-MWPC) at GANIL, Eγ, Iγ, prompt γγ-coin, (prompt γ)(delayed γ)-coin, (delayed γ)(delayed γ)-coin, half-lives of the isomers in 131I, 132I and 133I by γ(t) using AGATA array with 32 segmented HPGe detectors and seven EXOGAM segmented clover detectors for γ detection. 130,131,132,133,134I; deduced high-spin levels, J, π, isomers, configurations. Comparisons with large-scale shell-model calculations using the code NUSHELLX. Systematics of experimental energy differences for the lowest states in odd-N isotopes of Sn, Sb, Te and I. NUCLEAR STRUCTURE 130,131,132,133,134I; calculated levels, J, π, probability of neutron hole occupancies in the νh11/2 orbital as a function of the total spin of negative parity states, and average spin contributions of proton and neutrons to the total spin of the negative parity states using large-scale shell-model calculations with the code NUSHELLX. Comparison with experimental data.
doi: 10.1103/PhysRevC.102.044329
2020BI06 Phys.Rev. C 102, 014326 (2020) S.Biswas, A.Lemasson, M.Rejmund, A.Navin, Y.H.Kim, C.Michelagnoli, I.Stefan, R.Banik, P.Bednarczyk, S.Bhattacharya, S.Bhattacharyya, E.Clement, H.L.Crawford, G.de France, P.Fallon, G.Fremont, J.Goupil, B.Jacquot, H.J.Li, J.Ljungvall, A.Maj, L.Menager, V.Morel, R.Palit, R.M.Perez-Vidal, J.Ropert Prompt-delayed γ-ray spectroscopy of neutron-rich 119, 121In isotopes NUCLEAR REACTIONS 9Be(238U, F), E=6.2 MeV/nucleon; measured Eγ, Iγ, γγ-coin, fission fragments, (fragment)γ-coin, half-lives of isomers by γ(t) using AGATA and EXOGAM detector arrays for prompt and delayed γ detection and the VAMOS++ spectrometer for fission fragment identification at GANIL. 119,121In; deduced high-spin levels, J, π, configurations, B(E2). Comparison with large-scale shell-model calculations. Systematics of B(E2) values for 25/2+ to 21/2+ transitions in odd-A In isotopes. NUCLEAR STRUCTURE 119,121,123,125,127,129In, 121,123,125,127,129,131Sb; calculated high-spin levels, J, π, probabilities for the neutron angular momentum and neutron seniority using large-scale shell-model.
doi: 10.1103/PhysRevC.102.014326
2020CL01 Phys.Rev. C 101, 034313 (2020) R.M.Clark, A.O.Macchiavelli, H.L.Crawford, P.Fallon, D.Rudolph, A.Saamark-Roth, C.M.Campbell, M.Cromaz, C.Morse, C.Santamaria Enhancement of α-particle formation near 100Sn RADIOACTIVITY 114Ba, 108,110,112Xe, 104,106,108,110Te, 220,222Ra, 216,218,220Rn, 212,214,216,218Po(α); calculated T1/2, pairing gaps, and α-formation probabilities using superfluid tunneling model for g.s. to g.s. α decay in even-even nuclei. Comparison with experimental data, and with Royer empirical fits. Discussed enhanced α-particle formation and superallowed α decay.
doi: 10.1103/PhysRevC.101.034313
2020GA02 Phys.Rev. C 101, 014308 (2020) B.Gao, R.G.T.Zegers, J.C.Zamora, D.Bazin, B.A.Brown, P.Bender, H.L.Crawford, J.Engel, A.Falduto, A.Gade, P.Gastis, T.Ginter, C.J.Guess, S.Lipschutz, A.O.Macchiavelli, K.Miki, E.M.Ney, B.Longfellow, S.Noji, J.Pereira, J.Schmitt, C.Sullivan, R.Titus, D.Weisshaar Gamow-Teller transitions to 93Zr via the 93Nb (t, 3He + γ) reaction at 115 MeV/u and its application to the stellar electron-capture rates NUCLEAR REACTIONS 93Nb(t, 3He), E=115 MeV/nucleon; measured 3He particle spectra, Eγ, double-differential σ(θ) using S800 spectrograph and GRETINA array at NSCL-MSU Coupled Cyclotron Facility. 93Zr; deduced levels, L-transfer, J, π, B(GT), electron capture (EC) rates in the late evolution of core-collapse supernovae, DWBA and multipole decomposition analysis (MDA). Comparison with QRPA and shell-model calculations.
doi: 10.1103/PhysRevC.101.014308
2020MA17 Phys.Rev. C 101, 044319 (2020) A.O.Macchiavelli, H.L.Crawford, P.Fallon, I.Y.Lee, R.M.Clark, C.M.Campbell, M.Cromaz, C.Morse, C.Santamaria Analysis of the 18Fg, m(d, p)19F reactions in the rotational model NUCLEAR REACTIONS 18,18mF(d, p)19F, E=14 MeV/nucleon; 18O(3He, d)19F, E=11 MeV; 19F(d, 3He)18O, E=52 MeV; calculated spectroscopic factors using rotational model with Nilsson configurations. Comparison with experimental values, and with USDB shell-model calculations. 19F, 20Ne; calculated levels energies of ground-state bands, and compared with experimental data from the ENSDF database. 19F, 19Ne; compared magnetic dipole moments from Nilsson results with experimental values.
doi: 10.1103/PhysRevC.101.044319
2020MA37 Phys.Rev.Lett. 125, 102502 (2020) N.Marginean, D.Little, Y.Tsunoda, S.Leoni, R.V.F.Janssens, B.Fornal, T.Otsuka, C.Michelagnoli, L.Stan, F.C.L.Crespi, C.Costache, R.Lica, M.Sferrazza, A.Turturica, A.D.Ayangeakaa, K.Auranen, M.Barani, P.C.Bender, S.Bottoni, M.Boromiza, A.Bracco, S.Calinescu, C.M.Campbell, M.P.Carpenter, P.Chowdhury, M.Ciemala, N.Cieplicka-Orynczak, D.Cline, C.Clisu, H.L.Crawford, I.E.Dinescu, J.Dudouet, D.Filipescu, N.Florea, A.M.Forney, S.Fracassetti, A.Gade, I.Gheorghe, A.B.Hayes, I.Harca, J.Henderson, A.Ionescu, L.W.Iskra, M.Jentschel, F.Kandzia, Y.H.Kim, F.G.Kondev, G.Korschinek, U.Koster, Krishichayan, M.Krzysiek, T.Lauritsen, J.Li, R.Marginean, E.A.Maugeri, C.Mihai, R.E.Mihai, A.Mitu, P.Mutti, A.Negret, C.R.Nita, A.Olacel, A.Oprea, S.Pascu, C.Petrone, C.Porzio, D.Rhodes, D.Seweryniak, D.Schumann, C.Sotty, S.M.Stolze, R.Suvaila, S.Toma, S.Ujeniuc, W.B.Walters, C.Y.Wu, J.Wu, S.Zhu, S.Ziliani Shape Coexistence at Zero Spin in 64Ni Driven by the Monopole Tensor Interaction NUCLEAR REACTIONS 62Ni(18O, 16O), E=39 MeV; 65Cu(11B, 12C), E=26 MeV; 63Ni(n, γ), E thermal; measured reaction products, Eγ, Iγ; analyzed available data from multiple experiments. 64Ni; deduced γ-ray energies, J, π, B(E2). Comparison with theoretical calculations.
doi: 10.1103/PhysRevLett.125.102502
2020MA52 Phys.Rev. C 102, 041301 (2020) A.O.Macchiavelli, R.M.Clark, H.L.Crawford, P.Fallon, I.Y.Lee, C.Morse, C.M.Campbell, M.Cromaz, C.Santamaria Core of 25F in the rotational model NUCLEAR STRUCTURE 25F; calculated levels, J, π, magnetic moments, quadrupole moments, B(E2), spectroscopic factors for low-lying levels using particle-rotor model; deduced rotation-aligned coupling scheme with the 5/2+ ground state as the bandhead of a decoupled band, configuration. Comparison with experimental results from 25F(p, 2p)24O at RIKEN.
doi: 10.1103/PhysRevC.102.041301
2020MO36 Phys.Rev. C 102, 054328 (2020) C.Morse, A.O.Macchiavelli, H.L.Crawford, S.Zhu, C.Y.Wu, Y.Y.Wang, J.Meng, B.B.Back, B.Bucher, C.M.Campbell, M.P.Carpenter, J.Chen, R.M.Clark, M.Cromaz, P.Fallon, J.Henderson, R.V.F.Janssens, M.D.Jones, T.L.Khoo, F.G.Kondev, T.Lauritsen, I.Y.Lee, J.Li, D.Potterveld, C.Santamaria, G.Savard, D.Seweryniak, S.Stolze, D.Weisshaar Quadrupole and octupole collectivity in 143Ba NUCLEAR REACTIONS 208Pb(143Ba, 143Ba'), E=627.8 MeV, [143Ba beam from 252Cf SF at the CARIBU facility at ATLAS-ANL]; measured reaction products, Eγ, Iγ, scattered particles, (particle)γ-coin, and half-life of the first 9/2- level from (particle)γ-coin using GRETINA array of 11 Quad detector modules, each with four 36-fold segmented HPGe crystals for γ detection and CHICO2 array of 20 Parallel Plate Avalanche Counters (PPACs). 143Ba; deduced levels, J, π, Coulomb excitation γ-ray yields, E2 matrix elements using GOSIA least-squares analysis, B(E2), upper limit for E3 matrix element and B(E3), alignment plots, doubly decoupled structure. Comparison with Reflection-Asymmetric Triaxial Particle Rotor Model (RAT-PRM) calculations.
doi: 10.1103/PhysRevC.102.054328
2020PO07 Phys.Rev.Lett. 124, 252502 (2020) J.L.Pore, J.M.Gates, R.Orford, C.M.Campbell, R.M.Clark, H.L.Crawford, N.E.Esker, P.Fallon, J.A.Gooding, J.T.Kwarsick, A.O.Macchiavelli, C.Morse, D.Rudolph, A.Samark-Roth, C.Santamaria, R.S.Shah, M.A.Stoyer Identification of the New Isotope 244Md RADIOACTIVITY 244Md, 240Es, 236Bk(α) [from 209Bi(40Ar, 5n), E ∼ 200 MeV]; measured decay products, Eα, Iα; deduced α-decay energies, T1/2.
doi: 10.1103/PhysRevLett.124.252502
2020SA44 Phys.Rev. C 102, 064317 (2020) M.Salathe, H.L.Crawford, A.O.Macchiavelli, B.P.Kay, C.R.Hoffman, A.D.Ayangeakaa, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, M.D.Jones, S.A.Kuvin, J.Sethi, M.Wiedeking, J.R.Winkelbauer, A.H.Wuosmaa Search for the 1/2+ intruder state in 35P NUCLEAR REACTIONS 2H(36S, 3He), E=15.3 MeV/nucleon; measured E(3He), I(3He), σ(θ) using deuterated-plastic targets and HELIOS solenoidal spectrometer at the ATLAS-ANL facility. 35P; deduced levels, J, π, spectroscopic factors, configurations, 0p0h waveform amplitude of the 36S ground state, no candidate peak for 2p2h bandhead and a deformed intruder state in 35P. Angular distribution data analyzed using PTOLEMY DWBA calculations with possible combinations of optical potentials. Comparison with previous experimental results. Systematics of experimental and shell model results for energies of 2p2h bandheads for the N=20 isotones: 32Mg, 33Al, 34Si, 35P, 36S.
doi: 10.1103/PhysRevC.102.064317
2019AB06 Phys.Rev. C 100, 014323 (2019) B.Abromeit, V.Tripathi, H.L.Crawford, S.N.Liddick, S.Yoshida, Y.Utsuno, P.C.Bender, B.P.Crider, R.Dungan, P.Fallon, K.Kravvaris, N.Larson, R.S.Lubna, T.Otsuka, C.J.Prokop, A.L.Richard, N.Shimizu, S.L.Tabor, A.Volya Β- decay of Tz = +11/2 isotopes 37Al and 39Si: Understanding Gamow-Teller strength distribution in neutron-rich nuclei RADIOACTIVITY 37Al, 37,39,40Si, 37,39P(β-)[from 9Be(48Ca, X), E=140 MeV/nucleon, followed by fragment separation using A1900 separator at NSCL-MSU]; 37Al, 39Si(β-n); measured β, Eγ, Iγ, βγ-coin, half-lives of decays of 37Al, 37Si and 39Si, %β-n for decays of 37Al and 39Si using β-counting system (BCS) at NSCL-MSU which consisted of silicon PIN detectors, segmented planar Ge double-sided strip detector (GeDSSD) for implants and β- detection, and an array of 16 segmented Ge detectors for γ rays. 36Si, 37Si, 37,39,40P, 37,39S; deduced levels, J, π, β feedings, logft, %β-n. Systematics of low-lying positive π states in 35,37,39P, and T1/2 in N=20-28 Si isotopes. Comparison with shell model calculations. NUCLEAR STRUCTURE 35,37,39P, 37,39S, 37Si; calculated levels, J, π, logft values. Shell model calculations using the SDPFSDG-MU interaction. Comparison with experimental data from the present experiment, and the evaluated data in the ENSDF database at NNDC.
doi: 10.1103/PhysRevC.100.014323
2019AY04 Phys.Rev.Lett. 123, 102501 (2019) A.D.Ayangeakaa, R.V.F.Janssens, S.Zhu, D.Little, J.Henderson, C.Y.Wu, D.J.Hartley, M.Albers, K.Auranen, B.Bucher, M.P.Carpenter, P.Chowdhury, D.Cline, H.L.Crawford, P.Fallon, A.M.Forney, A.Gade, A.B.Hayes, F.G.Kondev, Krishichayan, T.Lauritsen, J.Li, A.O.Macchiavelli, D.Rhodes, D.Seweryniak, S.M.Stolze, W.B.Walters, J.Wu Evidence for Rigid Triaxial Deformation in 76Ge from a Model-Independent Analysis NUCLEAR REACTIONS 208Pb(76Ge, 76Ge'), E=304, 291, 317 MeV; measured reaction products, Eγ, Iγ. 76Ge; deduced γ-ray energies, E2 matrix elements, quadrupole asymmetry for bands, triaxial deformation.
doi: 10.1103/physrevlett.123.102501
2019BI04 Phys.Rev. C 99, 064302 (2019) S.Biswas, A.Lemasson, M.Rejmund, A.Navin, Y.H.Kim, C.Michelagnoli, I.Stefan, R.Banik, P.Bednarczyk, S.Bhattacharya, S.Bhattacharyya, E.Clement, H.L.Crawford, G.de France, P.Fallon, G.Fremont, J.Goupil, B.Jacquot, H.J.Li, J.Ljungvall, A.Maj, L.Menager, V.Morel, R.Palit, R.M.Perez-Vidal, J.Ropert, D.Barrientos, G.Benzoni, B.Birkenbach, A.J.Boston, H.C.Boston, B.Cederwall, J.Collado, D.M.Cullen, P.Desesquelles, C.Domingo-Pardo, J.Dudouet, J.Eberth, V.Gonzalez, L.J.Harkness-Brennan, H.Hess, A.Jungclaus, W.Korten, M.Labiche, A.Lefevre, R.Menegazzo, D.Mengoni, B.Million, D.R.Napoli, A.Pullia, B.Quintana, D.Ralet, F.Recchia, P.Reiter, F.Saillant, M.D.Salsac, E.Sanchis, O.Stezowski, Ch.Theisen, J.J.Valiente-Dobon, M.Zielinska Effects of one valence proton on seniority and angular momentum of neutrons in neutron-rich 122-13151Sb isotopes NUCLEAR REACTIONS 9Be(238U, F)122Sb/123Sb/124Sb/125Sb/126Sb/127Sb/128Sb/129Sb/130Sb/131Sb, E=6.2 MeV/nucleon; measured reaction products, Eγ, Iγ, γγ- and (fragment)γ-coin, T1/2 of isomers by γγ(t) using the VAMOS++ spectrometer for fragment identification and the AGATA array with EXOGAM detectors for γ detection at GANIL. 122,123,124,125,126,127,128,129,130,131Sb; deduced levels, J, π, isomers, bands, and B(E2). Systematics of excitation energies and B(E2) values in 118,119,120,121,122,123,124,125,126,127,128,129,130Sn, 121,122,123,124,125,126,127,128,129,130,131Sb. Comparison with shell model calculations. Discussed neutron-neutron and neutron-proton interactions, and neutron seniority mixings.
doi: 10.1103/PhysRevC.99.064302
2019CL01 Phys.Rev. C 99, 024325 (2019) R.M.Clark, H.L.Crawford, A.O.Macchiavelli, D.Rudolph, A.Saamark-Roth, C.M.Campbell, M.Cromaz, P.Fallon, C.Morse, C.Santamaria α decay of high-spin isomers in N=84 isotones RADIOACTIVITY 144Nd, 145Pm, 146Sm, 147Eu, 148Gd, 149Tb, 150Dy, 151Ho, 152Er, 153Tm, 154Yb, 155Lu, 156Hf, 157Ta, 158W, 159Re(α); calculated half-lives of ground states. 155mLu, 156mHf, 157mTa, 158mW(α); calculated half-lives and α branching ratios for high-spin isomers. Superfluid tunneling model. Comparison with experimental values.
doi: 10.1103/PhysRevC.99.024325
2019CR02 Phys.Rev.Lett. 122, 052501 (2019) H.L.Crawford, P.Fallon, A.O.Macchiavelli, P.Doornenbal, N.Aoi, F.Browne, C.M.Campbell, S.Chen, R.M.Clark, M.L.Cortes, M.Cromaz, E.Ideguchi, M.D.Jones, R.Kanungo, M.MacCormick, S.Momiyama, I.Murray, M.Niikura, S.Paschalis, M.Petri, H.Sakurai, M.Salathe, P.Schrock, D.Steppenbeck, S.Takeuchi, Y.K.Tanaka, R.Taniuchi, H.Wang, K.Wimmer First Spectroscopy of the Near Drip-line Nucleus 40Mg NUCLEAR REACTIONS C(41Ar, X)40Mg, (40Ar, X)38Mg/36Mg, E<345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π. Comparison with shell-model calculations.
doi: 10.1103/PhysRevLett.122.052501
2019EL08 Phys.Rev. C 100, 034317 (2019) B.Elman, A.Gade, R.V.F.Janssens, A.D.Ayangeakaa, D.Bazin, J.Belarge, P.C.Bender, B.A.Brown, C.M.Campbell, M.P.Carpenter, H.L.Crawford, B.P.Crider, P.Fallon, A.M.Forney, J.Harker, S.N.Liddick, B.Longfellow, E.Lunderberg, C.J.Prokop, J.Sethi, R.Taniuchi, W.B.Walters, D.Weisshaar, S.Zhu Probing the role of proton cross-shell excitations in 70Ni using nucleon knockout reactions NUCLEAR REACTIONS 9Be(71Cu, 70Ni), E=80.2 MeV/nucleon; 9Be(71Ni, 70Ni), E=82.6 MeV/nucleon; 9Be(72Zn, 70Ni), E=76.5 MeV/nucleon, [secondary 71Cu, 71Ni, 71Zn beams from 9Be(76Ge, X), E=130 MeV/nucleon primary reaction at the K500 and K1200 coupled cyclotrons of NSCL-MSU]; measured yields of reaction products, Eγ, Iγ, γγ- and (knockout residues)γ-coin using GRETINA array for γ detection, and CsI(Na) hodoscope array for reaction residues. 70Ni; deduced levels, J, π, configurations. Comparison with shell-model calculations for only the neutron excitations using the jj44pna effective interaction.
doi: 10.1103/PhysRevC.100.034317
2019EL09 Phys.Rev. C 100, 041301 (2019) R.Elder, H.Iwasaki, J.Ash, D.Bazin, P.C.Bender, T.Braunroth, B.A.Brown, C.M.Campbell, H.L.Crawford, B.Elman, A.Gade, M.Grinder, N.Kobayashi, B.Longfellow, A.O.Macchiavelli, T.Mijatovic, J.Pereira, A.Revel, D.Rhodes, J.A.Tostevin, D.Weisshaar Intruder dominance in the 0+2 state of 32Mg studied with a novel technique for in-flight decays NUCLEAR REACTIONS 9Be(34Si, 32Mg), (34Si, 31Mg), E=86 MeV/nucleon, [secondary 34Si beam from 9Be(48Ca, X), E=140 MeV/nucleon and separated using A1900 fragment separator at NSCL-MSU]; measured reaction products identified by time-of-flight and energy-loss measurements using the S800 spectrograph, Eγ, Iγ, (particle)γ-coin, level half-life for the first excited 0+ state using GRETINA array. 32Mg; deduced levels, excited 0+ level, B(E2) for excited 0+ to the first 2+ state. Comparison with B(E2) values for the first 2+ and excited 0+ states in 30,32Mg and 34Si. New method to study isomeric states decaying in-flight. Discussed collective behavior of the first excited 0+ state in 32Mg. 31Mg; deduced levels, isomer half-life.
doi: 10.1103/PhysRevC.100.041301
2019GA15 Phys.Rev.Lett. 122, 222501 (2019) A.Gade, B.A.Brown, J.A.Tostevin, D.Bazin, P.C.Bender, C.M.Campbell, H.L.Crawford, B.Elman, K.W.Kemper, B.Longfellow, E.Lunderberg, D.Rhodes, D.Weisshaar Is the Structure of 42Si Understood? NUCLEAR REACTIONS 9Be(43P, 42Si), E=140 MeV/nucleon; measured reaction products, Eγ, Iγ. 42Si; deduced γ-ray energies, partial proton removal σ. Comparison with theoretical calculations.
doi: 10.1103/PhysRevLett.122.222501
2019ZA07 Phys.Rev. C 100, 032801(R) (2019) J.C.Zamora, R.G.T.Zegers, SamM.Austin, D.Bazin, B.A.Brown, P.C.Bender, H.L.Crawford, J.Engel, A.Falduto, A.Gade, P.Gastis, B.Gao, T.Ginter, C.J.Guess, S.Lipschutz, B.Longfellow, A.O.Macchiavelli, K.Miki, E.Ney, S.Noji, J.Pereira, J.Schmitt, C.Sullivan, R.Titus, D.Weisshaar Experimental constraint on stellar electron-capture rates from the 88Sr(t, 3He + γ) 88Rb reaction at 115 MeV/u NUCLEAR REACTIONS 88Sr(t, 3He)88Rb, E=115 MeV/nucleon, [secondary triton beam from 9Be(16O, X), E=150 MeV/nucleon using Coupled Cyclotron Facility and A1900 fragment separator at NSCL-MSU]; measured 3He ejectiles, angular distributions using S800 spectrograph, and Eγ, Iγ using GRETINA array; deduced double-differential cross sections, L-transfers from fitting of the σ(θ) distributions in the multipole decomposition analysis (MDA), two-dimensional histogram of γ-ray energy versus excitation energy of 88Rb. 88Sr; deduced B(GT) strength distributions, electron capture (EC) rates on 88Sr as a function of stellar density at a temperature of 10 GK. 86,87,88Rb; deduced transitions. 12C(t, 3He)12B, E=115 MeV/nucleon; measured 3He ejectiles, reaction used for calibration and for absolute measurement of the triton beam intensity. Comparison of experimental EC rates on 88Sr with shell model and QRPA calculations. Relevance to the late evolution of core-collapse supernovae.
doi: 10.1103/PhysRevC.100.032801
2018GA34 Phys.Rev.Lett. 121, 222501 (2018) J.M.Gates, G.K.Pang, J.L.Pore, K.E.Gregorich, J.T.Kwarsick, G.Savard, N.E.Esker, M.Kireeff Covo, M.J.Mogannam, J.C.Batchelder, D.L.Bleuel, R.M.Clark, H.L.Crawford, P.Fallon, K.K.Hubbard, A.M.Hurst, I.T.Kolaja, A.O.Macchiavelli, C.Morse, R.Orford, L.Phair, M.A.Stoyer First Direct Measurements of Superheavy-Element Mass Numbers RADIOACTIVITY 288Mc, 280Rg, 276Mt, 272Bh(α), 284Nh, 272Bh(α) [from 243Am(48Ca, X)288Mc, E=262 MeV]; measured decay products, Eα, Iα; deduced two α-decay events, first direct measurements of the mass numbers of superheavy elements.
doi: 10.1103/PhysRevLett.121.222501
2018JO01 Phys.Rev. C 97, 024327 (2018) M.D.Jones, A.O.Macchiavelli, M.Wiedeking, L.A.Bernstein, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, I.Y.Lee, M.Salathe, A.Wiens, A.D.Ayangeakaa, D.L.Bleuel, S.Bottoni, M.P.Carpenter, H.M.Davids, J.Elson, A.Gorgen, M.Guttormsen, R.V.F.Janssens, J.E.Kinnison, L.Kirsch, A.C.Larsen, T.Lauritsen, W.Reviol, D.G.Sarantites, S.Siem, A.V.Voinov, S.Zhu Examination of the low-energy enhancement of the γ-ray strength function of 56Fe NUCLEAR REACTIONS 56Fe(p, p'), E=16 MeV; measured Eγ, Iγ, γ(θ) for discrete and continuum γ rays, γ(linear polarization) for primary γ rays, pγγ-coin using GRETINA (Gamma-Ray Energy Tracking In-beam Nuclear Array) for γ detection and Washington University Phoswich Wall for protons; deduced multipolarity of continuum γ rays, γ-ray strength function (γSF) with the model-independent ratio method, low-energy enhancement, identical shapes for γSFs constructed with 2+ and 4+ final states consistent with Brink hypothesis. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.97.024327
2018MA05 Phys.Rev. C 97, 011302 (2018); Erratum Phys.Rev. C 97, 094902 (2018) A.O.Macchiavelli, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, M.D.Jones, I.Y.Lee, M.Salathe Analysis of spectroscopic factors in 11Be and 12Be in the Nilsson strong-coupling limit NUCLEAR REACTIONS 10,11Be(d, p)11Be/12Be, 11,12Be(p, d)10Be/11Be, E not given; analyzed spectroscopic factors in the Nilsson strong-coupling limit. Comparison with experimental data, and several theoretical calculations. 12Be(d, p)13Be, 13B(d, 3He)12Be, E not given; calculated spectroscopic factors in the Nilsson scheme. 11Be; calculated magnetic moment of the ground state and compared with experimental data.
doi: 10.1103/PhysRevC.97.011302
2017BO23 Phys.Lett. B 775, 271 (2017) S.Bottoni, S.Zhu, R.V.F.Janssens, M.P.Carpenter, Y.Tsunoda, T.Otsuka, A.O.Macchiavelli, D.Cline, C.Y.Wu, A.D.Ayangeakaa, B.Bucher, M.Q.Buckner, C.M.Campbell, C.J.Chiara, H.L.Crawford, M.Cromaz, H.M.David, P.Fallon, A.Gade, J.P.Greene, J.Harker, A.B.Hayes, C.R.Hoffman, B.P.Kay, A.Korichi, T.Lauritsen, J.Sethi, D.Seweryniak, W.B.Walters, D.Weisshaar, A.Wiens Nucleon correlations and the structure of 7130Zn41 NUCLEAR REACTIONS 70Zn(48Ca, 47Ca)71Zn, E=170 MeV; 197Au(70Zn, X)71Zn, E=430 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, decay scheme, J, π, modest oblate deformation. Comparison with Monte-Carlo shell-model calculations.
doi: 10.1016/j.physletb.2017.11.003
2017BU07 Phys.Rev.Lett. 118, 152504 (2017) B.Bucher, S.Zhu, C.Y.Wu, R.V.F.Janssens, R.N.Bernard, L.M.Robledo, T.R.Rodriguez, D.Cline, A.B.Hayes, A.D.Ayangeakaa, M.Q.Buckner, C.M.Campbell, M.P.Carpenter, J.A.Clark, H.L.Crawford, H.M.David, C.Dickerson, J.Harker, C.R.Hoffman, B.P.Kay, F.G.Kondev, T.Lauritsen, A.O.Macchiavelli, R.C.Pardo, G.Savard, D.Seweryniak, R.Vondrasek Direct Evidence for Octupole Deformation in 146Ba and the Origin of Large E1 Moment Variations in Reflection-Asymmetric Nuclei NUCLEAR REACTIONS 208Pb(146Ba, 146Ba'), E=659 MeV; measured reaction products, Eγ, Iγ. 144,146,148Ba; deduced energy levels, J, π, B(Eλ), quadrupole and octupole deformation parameters. Calculated HFB potential energy surfaces, neutron single-particle energies. Coulomb excitation, comparison with available data.
doi: 10.1103/PhysRevLett.118.152504
2017CR02 Phys.Scr. 92, 064002 (2017) Nuclear shapes and symmetries with GRETINA
doi: 10.1088/1402-4896/aa6f4c
2017CR03 Phys.Rev. C 95, 064317 (2017) H.L.Crawford, A.O.Macchiavelli, P.Fallon, M.Albers, V.M.Bader, D.Bazin, C.M.Campbell, R.M.Clark, M.Cromaz, J.Dilling, A.Gade, A.Gallant, J.D.Holt, R.V.F.Janssens, R.Krucken, C.Langer, T.Lauritsen, I.Y.Lee, J.Menendez, S.Noji, S.Paschalis, F.Recchia, J.Rissanen, A.Schwenk, M.Scott, J.Simonis, S.R.Stroberg, J.A.Tostevin, C.Walz, D.Weisshaar, A.Wiens, K.Wimmer, S.Zhu Unexpected distribution of ν1f7/2 strength in 49Ca NUCLEAR REACTIONS 9Be(48Ca, 47Ca), (50Ca, 49Ca), E not given, [secondary 48,50Ca beams from 9Be(82Se, X), E=140 MeV/nucleon primary reaction, and using A1900 fragment separator at NSCL-MSU]; measured reaction 1n-knockout products using S800 magnetic spectrograph, Eγ, Iγ, γγ-coin, γ(particle) correlated events, using GRETINA array for γ detection, σ(-1n), parallel momentum distributions. 47,49Ca; deduced levels, J, π, l-transfer, γ-ray yields by fitting the data with GEANT4 simulation, spectroscopic factors, configurations, spectroscopic strengths for the 1f7/2 neutron hole states. Comparison with shell-model calculations based on NN+3N force in ν(pf) model space, GXPF1 interaction, and NN+3N including the ν1g9/2 orbital.
doi: 10.1103/PhysRevC.95.064317
2017DO01 Phys.Lett. B 766, 334 (2017) D.T.Doherty, J.M.Allmond, R.V.F.Janssens, W.Korten, S.Zhu, M.Zielinska, D.C.Radford, A.D.Ayangeakaa, B.Bucher, J.C.Batchelder, C.W.Beausang, C.Campbell, M.P.Carpenter, D.Cline, H.L.Crawford, H.M.David, J.P.Delaroche, C.Dickerson, P.Fallon, A.Galindo-Uribarri, F.G.Kondev, J.L.Harker, A.B.Hayes, M.Hendricks, P.Humby, M.Girod, C.J.Gross, M.Klintefjord, K.Kolos, G.J.Lane, T.Lauritsen, J.Libert, A.O.Macchiavelli, P.J.Napiorkowski, E.Padilla-Rodal, R.C.Pardo, W.Reviol, D.G.Sarantites, G.Savard, D.Seweryniak, J.Srebrny, R.Varner, R.Vondrasek, A.Wiens, E.Wilson, J.L.Wood, C.Y.Wu Triaxiality near the 110Ru ground state from Coulomb excitation NUCLEAR REACTIONS 208Pb(110Ru, 110Ru'), E=430 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energy spectrum, B(E2) using GOSIA fit of the experimental data, level scheme, J, π, triaxial deformation. Comparison with available data.
doi: 10.1016/j.physletb.2017.01.031
2017KI09 Eur.Phys.J. A 53, 162 (2017) Y.H.Kim, A.Lemasson, M.Rejmund, A.Navin, S.Biswas, C.Michelagnoli, I.Stefan, R.Banik, P.Bednarczyk, S.Bhattacharya, S.Bhattacharyya, E.Clement, H.L.Crawford, G.De France, P.Fallon, J.Goupil, B.Jacquot, H.J.Li, J.Ljungvall, A.O.Macchiavelli, A.Maj, L.Menager, V.Morel, R.Palit, R.M.Perez-Vidal, J.Ropert, C.Schmitt Prompt-delayed γ-ray spectroscopy with AGATA, EXOGAM and VAMOS++ NUCLEAR REACTIONS 9Be(238U, f), (238U, x), E=6.2 MeV/nucleon; measured fission fragments using VAMOS++ spectrometer (MWPC ToF, 2 drift chambers, segmented ionization chamber), prompt Eγ, Iγ, γγ-coin using AGATA γ-ray tracking array, delayed Eγ, Iγ using EXOGAM HPGe Clover detectors; deduced event correlations between AGATA, VAMOS++ and EXOGAM, fragment mass distributions, deduced tracked Doppler corrected γ-ray spectra. 132Te; deduced levels, J, π, isomeric transitions to demonstrate the performance of the new setup. 94Y, 122,124Sn, 132,134Te; deduced isomeric transitions T1/2.
doi: 10.1140/epja/i2017-12353-y
2017MA23 Phys.Scr. 92, 064001 (2017) A.O.Macchiavelli, H.L.Crawford On the structure of 30Mg and 32Mg NUCLEAR STRUCTURE 30,32Mg; analyzed available data; deduced B(E2) strengths.
doi: 10.1088/1402-4896/aa6ac2
2017MA72 Phys.Rev. C 96, 054302 (2017) A.O.Macchiavelli, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, M.D.Jones, I.Y.Lee, A.L.Richard, M.Salathe Spectroscopic factors in the N=20 island of inversion: The Nilsson strong-coupling limit NUCLEAR REACTIONS C(33Mg, 32Mg), E=400, 898 MeV/nucleon; 9Be(32Mg, 31Mg), E=75.7 MeV/nucleon; analyzed recent experimental data on 1n-removal reactions in the rotational strong coupling limit; calculated spectroscopic factors using standard Nilsson parameters and empirical adjustment of experimental data for nuclei in the N=20 island of inversion.
doi: 10.1103/PhysRevC.96.054302
2017MA77 Phys.Lett. B 775, 160 (2017) A.O.Macchiavelli, H.L.Crawford, P.Fallon, C.M.Campbell, R.M.Clark, M.Cromaz, M.D.Jones, I.Y.Lee, M.Salathe Structure of 29F in the rotation-aligned coupling scheme of the particle-rotor model NUCLEAR STRUCTURE 29F, 28O; analyzed available data using the Rotation-aligned Coupling Scheme; deduced energy levels and deformations.
doi: 10.1016/j.physletb.2017.10.041
2017ME01 Nucl.Instrum.Methods Phys.Res. A844, 45 (2017) Z.Meisel, M.del Santo, H.L.Crawford, R.H.Cyburt, G.F.Grinyer, C.Langer, F.Montes, H.Schatz, K.Smith β-particle energy-summing correction for β-delayed proton emission measurements RADIOACTIVITY 67Se, 20Mg, 23Si, 69Kr(β+p); analyzed available data; calculated β-summing in the measurement of proton-decay energies of β-delayed proton-emitting nuclei detected via implantation.
doi: 10.1016/j.nima.2016.11.019
2017PA02 Phys.Rev.Lett. 118, 052501 (2017) J.J.Parker, IV, I.Wiedenhover, P.D.Cottle, J.Baker, D.McPherson, M.A.Riley, D.Santiago-Gonzalez, A.Volya, V.M.Bader, T.Baugher, D.Bazin, A.Gade, T.Ginter, H.Iwasaki, C.Loelius, C.Morse, F.Recchia, D.Smalley, S.R.Stroberg, K.Whitmore, D.Weisshaar, A.Lemasson, H.L.Crawford, A.O.Macchiavelli, K.Wimmer Isomeric Character of the Lowest Observed 4+ State in 44S NUCLEAR REACTIONS Be(46Ar, 2p)44S, E=99 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, level T1/2, B(E2). Plunger apparatus at GRETINA.
doi: 10.1103/PhysRevLett.118.052501
2017PR01 Nucl.Instrum.Methods Phys.Res. A846, 50 (2017) V.S.Prasher, M.Cromaz, E.Merchan, P.Chowdhury, H.L.Crawford, C.J.Lister, C.M.Campbell, I.Y.Lee, A.O.Macchiavelli, D.C.Radford, A.Wiens Sensitivity of GRETINA position resolution to hole mobility
doi: 10.1016/j.nima.2016.11.038
2017RI06 Phys.Rev. C 96, 011303 (2017) A.L.Richard, H.L.Crawford, P.Fallon, A.O.Macchiavelli, V.M.Bader, D.Bazin, M.Bowry, C.M.Campbell, M.P.Carpenter, R.M.Clark, M.Cromaz, A.Gade, E.Ideguchi, H.Iwasaki, M.D.Jones, C.Langer, I.Y.Lee, C.Loelius, E.Lunderberg, C.Morse, J.Rissanen, M.Salathe, D.Smalley, S.R.Stroberg, D.Weisshaar, K.Whitmore, A.Wiens, S.J.Williams, K.Wimmer, T.Yamamato Strongly coupled rotational band in 33Mg NUCLEAR REACTIONS 9Be(46Ar, 33Mg), E=102 MeV/nucleon, [secondary 46Ar beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction at NSCL-MSU facility]; measured reaction products, Eγ, Iγ, (33Mg)γ-, γγ-coin using S800 spectrograph for particle identification and GRETINA array for γ detection. 33Mg; deduced low-energy yrast levels, J, π, rotational band, ground-state magnetic moment, and intrinsic quadrupole moment. Comparison with strong-coupling limit of a rotational model.
doi: 10.1103/PhysRevC.96.011303
2017TR02 Phys.Rev. C 95, 024308 (2017) V.Tripathi, R.S.Lubna, B.Abromeit, H.L.Crawford, S.N.Liddick, Y.Utsuno, P.C.Bender, B.P.Crider, R.Dungan, P.Fallon, K.Kravvaris, N.Larson, A.O.Macchiavelli, T.Otsuka, C.J.Prokop, A.L.Richard, N.Shimizu, S.L.Tabor, A.Volya, S.Yoshida β decay of 38, 40Si (Tz =+5, +6) to low-lying core excited states in odd-odd 38-40P isotopes RADIOACTIVITY 38,40Si(β-), (β-n)[from 9Be(48Ca, X), E=140 MeV/nucleon using A1900 separator at NSCL-MSU facility]; measured Eγ, Iγ, Eβ, γγ-coin, β-correlated γ spectra, half-lives and delayed-neutron probabilities (Pn) of decays of 38Si and 40Si using planar germanium double-sided strip detector (GeDSSD) and SeGA array. 38,40P; deduced levels, J, π, β feedings log ft values. Comparison with known experimental level schemes of 34 and 36P, and with shell model calculations using SDPF-MU interaction. 36,38,40Si(β-); calculated half-lives and log ft values of decays of Si isotopes, beta-delayed neutron probabilities (Pn) using shell model, and compared with experimental values. NUCLEAR STRUCTURE 34,36,38,40P; calculated levels, J, π, proton and neutron occupancies for the ground state and the three excited 1+ states, Gamow-Teller matrix elements for the 1+ states. Shell model calculations with SDPF-MU interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.95.024308
2016AY01 Phys.Lett. B 754, 254 (2016) A.D.Ayangeakaa, R.V.F.Janssens, C.Y.Wu, J.M.Allmond, J.L.Wood, S.Zhu, M.Albers, S.Almaraz-Calderon, B.Bucher, M.P.Carpenter, C.J.Chiara, D.Cline, H.L.Crawford, H.M.David, J.Harker, A.B.Hayes, C.R.Hoffman, B.P.Kay, K.Kolos, A.Korichi, T.Lauritsen, A.O.Macchiavelli, A.Richard, D.Seweryniak, A.Wiens Shape coexistence and the role of axial asymmetry in 72Ge NUCLEAR REACTIONS 208Pb(72Ge, 72Ge'), E=301 MeV; measured reaction products, Eγ, Iγ. 72Ge; deduced energy levels, J, π, reduced E2 matrix elements, B(E2) values. Comparison with available data.
doi: 10.1016/j.physletb.2016.01.036
2016BE24 Phys.Rev. C 94, 034303 (2016) N.Benczer-Koller, G.J.Kumbartzki, K.-H.Speidel, D.A.Torres, S.J.Q.Robinson, Y.Y.Sharon, J.M.Allmond, P.Fallon, I.Abramovic, L.A.Bernstein, J.E.Bevins, H.L.Crawford, Z.E.Guevara, A.M.Hurst, L.Kirsch, T.A.Laplace, A.Lo, E.F.Matthews, I.Mayers, L.W.Phair, F.Ramirez, A.Wiens Magnetic moment and lifetime measurements of Coulomb-excited states in 106Cd NUCLEAR REACTIONS 12C(106Cd, 106Cd'), E=410 MeV; measured particle spectra using Si surface-barrier detector, Eγ, Iγ, (particle)γ-coin using four clover HPGe detectors, g factors by the transient-field technique, level half-lives by DSAM at LBNL cyclotron facility. Coulomb excitation. 106Cd; deduced levels, J, B(E2). Comparison with large-scale shell-model, and collective model calculations.
doi: 10.1103/PhysRevC.94.034303
2016BU02 Phys.Rev.Lett. 116, 112503 (2016) B.Bucher, S.Zhu, C.Y.Wu, R.V.F.Janssens, D.Cline, A.B.Hayes, M.Albers, A.D.Ayangeakaa, P.A.Butler, C.M.Campbell, M.P.Carpenter, C.J.Chiara, J.A.Clark, H.L.Crawford, M.Cromaz, H.M.David, C.Dickerson, E.T.Gregor, J.Harker, C.R.Hoffman, B.P.Kay, F.G.Kondev, A.Korichi, T.Lauritsen, A.O.Macchiavelli, R.C.Pardo, A.Richard, M.A.Riley, G.Savard, M.Scheck, D.Seweryniak, M.K.Smith, R.Vondrasek, A.Wiens Direct Evidence of Octupole Deformation in Neutron-Rich 144Ba NUCLEAR REACTIONS 208Pb(144Ba, 144Ba'), E=650 MeV; measured reaction products, Eγ, Iγ. 144Ba; deduced yields, E2 and E3 matrix elements, quadrupole moments, deformation parameters, B(E2), B(E3). Comparison with theoretical calculations.
doi: 10.1103/PhysRevLett.116.112503
2016CR01 Phys.Rev. C 93, 031303 (2016) H.L.Crawford, P.Fallon, A.O.Macchiavelli, A.Poves, V.M.Bader, D.Bazin, M.Bowry, C.M.Campbell, M.P.Carpenter, R.M.Clark, M.Cromaz, A.Gade, E.Ideguchi, H.Iwasaki, C.Langer, I.Y.Lee, C.Loelius, E.Lunderberg, C.Morse, A.L.Richard, J.Rissanen, D.Smalley, S.R.Stroberg, D.Weisshaar, K.Whitmore, A.Wiens, S.J.Williams, K.Wimmer, T.Yamamato Rotational band structure in 32Mg NUCLEAR REACTIONS 9Be(46Ar, 32Mg), E=102 MeV/nucleon, [secondary 46Ar beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction]; measured Eγ, Iγ, (32Mg)γ-, γγ-coin using A1900 fragment separator, S800 spectrograph and GRETINA array at NSCL-MSU. 32Mg; deduced levels, J, π, rotational band in a nuclide in "island of inversion", configuration. Comparison with large-scale shell model calculations using ANTOINE code with the SDPF-U-MIX effective two-body interaction.
doi: 10.1103/PhysRevC.93.031303
2016KU05 Phys.Rev. C 93, 044316 (2016) G.J.Kumbartzki, N.Benczer-Koller, K.-H.Speidel, D.A.Torres, J.M.Allmond, P.Fallon, I.Abramovic, L.A.Bernstein, J.E.Bevins, H.L.Crawford, Z.E.Guevara, G.Gurdal, A.M.Hurst, L.Kirsch, T.A.Laplace, A.Lo, E.F.Matthews, I.Mayers, L.W.Phair, F.Ramirez, S.J.Q.Robinson, Y.Y.Sharon, A.Wiens Z = 50 core stability in 110Sn from magnetic-moment and lifetime measurements NUCLEAR REACTIONS 12C(106Cd, 8Be)110Sn, 12C(106Cd, 12C)106Cd, E=390, 400, 410 MeV; measured particle spectra, Eγ, Iγ, (particle)γ-coin, γγ(θ), level half-lives using DSAM and lineshape analysis, g factors using transient field technique at LBNL 88-Inch Cyclotron facility, multi-layered target of carbon, gadolinium, tantalum and copper layers. 110Sn; deduced levels, J, π, B(E2), magnetic moments, configurations, no evidence for excitation of protons from the closed Z=50 core. Comparison with previous experimental results, and with shell model calculations. Systematics of B(E2) values for the first 2+ states in A=104-130, even-even Sn nuclei. NUCLEAR MOMENTS 110Sn; measured g factors using transient field technique in 12C(106Cd, 8Be) reaction at 410 MeV, and using a multi-layered target; deduced magnetic moments. Comparison with shell model calculations. Systematics of g factors for the first 2+ states in A=104-130, even-even Sn nuclei.
doi: 10.1103/PhysRevC.93.044316
2016MA73 Phys.Rev. C 94, 051303 (2016) A.O.Macchiavelli, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, M.D.Jones, I.Y.Lee, M.Salathe, B.A.Brown, A.Poves The 30Mg(t, p)32Mg "puzzle" reexamined NUCLEAR STRUCTURE 32Mg; calculated energies and wave-function amplitudes of first three 0+ states, mixing strength required to reproduce the experimental energy of the second 0+ state. Phenomenological three-level mixing model of unperturbed 0p0h, 2p2h, and 4p4h states. NUCLEAR REACTIONS 30Mg(t, p)32Mg, E not given; calculated cross-section ratio σ(second 0+)/σ(first 0+) in 2n-transfer reaction using 32Mg wave-function amplitudes from three-level mixing model calculations. Comparison with experimental data, and resolution of the puzzle resulting from a two-state mixing model.
doi: 10.1103/PhysRevC.94.051303
2016RE20 Phys.Rev. C 94, 054324 (2016) F.Recchia, D.Weisshaar, A.Gade, J.A.Tostevin, R.V.F.Janssens, M.Albers, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, B.A.Brown, C.M.Campbell, M.P.Carpenter, J.Chen, C.J.Chiara, H.L.Crawford, C.R.Hoffman, F.G.Kondev, A.Korichi, C.Langer, T.Lauritsen, S.N.Liddick, E.Lunderberg, S.Noji, C.Prokop, S.R.Stroberg, S.Suchyta, K.Wimmer, S.Zhu Neutron single-particle strengths at N=40, 42: Neutron knockout from 68, 70Ni ground and isomeric states NUCLEAR REACTIONS 9Be(68Ni, 67Ni), E=85 MeV/nucleon; 9Be(70Ni, 69Ni), E=74 MeV/nucleon, [secondary 68,70Ni beams from 9Be(82Se, X), E=140 MeV/nucleon, followed by separation of fragments using A1900 separator at NSCL-MSU]; measured particle spectra, Eγ, Iγ, one-neutron knockout σ for levels in the final nuclei, (67Ni or 69Ni)γ-coin, parallel momentum distributions, delayed γ from isomers using GRETINA array for γ detection and S800 spectrograph for particle analysis. 67,69Ni; measured levels, J, π, l-transfers. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.94.054324
2015CH25 Phys.Rev. C 91, 044309 (2015) C.J.Chiara, D.Weisshaar, R.V.F.Janssens, Y.Tsunoda, T.Otsuka, J.L.Harker, W.B.Walters, F.Recchia, M.Albers, M.Alcorta, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, P.F.Bertone, C.M.Campbell, M.P.Carpenter, J.Chen, H.L.Crawford, H.M.David, D.T.Doherty, A.Gade, C.R.Hoffman, M.Honma, F.G.Kondev, A.Korichi, C.Langer, N.Larson, T.Lauritsen, S.N.Liddick, E.Lunderberg, A.O.Macchiavelli, S.Noji, C.Prokop, A.M.Rogers, D.Seweryniak, N.Shimizu, S.R.Stroberg, S.Suchyta, Y.Utsuno, S.J.Williams, K.Wimmer, S.Zhu Identification of deformed intruder states in semi-magic 70Ni NUCLEAR REACTIONS 208Pb(70Zn, X)70Ni, E=440 MeV; measured Eγ, Iγ, prompt- and delayed-γ spectra, γγ-coin, γγ(θ) using Gammasphere array at ATLAS-ANL facility. 9Be(82Se, X)70Ni, E=140 MeV/nucleon; measured Eγ, Iγ, (70Ni)γ-, γγ-coin, prompt and delayed γ rays using S800 spectrograph, GRETINA and CsI(Na) arrays at NSCL-MSU facility. 70Ni; deduced levels, J, π. Comparison with Monte Carlo shell-model calculations. NUCLEAR STRUCTURE 68,70Ni, 92Mo; calculated levels, J, π, potential-energy surface contours in (Q2, Q4) plane. Shell-model using jj44bpn, jj44pna, JUN45, and JUN45 effective interactions, and Monte Carlo shell-model with A3DA interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.91.044309
2015GA24 Phys.Rev. C 92, 021301 (2015) J.M.Gates, K.E.Gregorich, O.R.Gothe, E.C.Uribe, G.K.Pang, D.L.Bleuel, M.Block, R.M.Clark, C.M.Campbell, H.L.Crawford, M.Cromaz, A.Di Nitto, Ch.E.Dullmann, N.E.Esker, C.Fahlander, P.Fallon, R.M.Farjadi, U.Forsberg, J.Khuyagbaatar, W.Loveland, A.O.Macchiavelli, E.M.May, P.R.Mudder, D.T.Olive, A.C.Rice, J.Rissanen, D.Rudolph, L.G.Sarmiento, J.A.Shusterman, M.A.Stoyer, A.Wiens, A.Yakushev, H.Nitsche Decay spectroscopy of element 115 daughters: 280Rg → 276Mt and 276Mt → 272Bh NUCLEAR REACTIONS 243Am(48Ca, 3n)288Mc, E=262 MeV; measured evaporation residues (EVRs) by magnetic rigidities, Eα, SF-like events, decay chains using corner-cube-clover (C3) focal plane detector consisting of silicon-strip detectors surrounded by HPGe clover-type detectors, and DSSSDs for α particles at LBNL cyclotron facility; deduced data for forty-six decay chains from the decay of 288Mc and its α daughter products 284Nh, 280Rg, 276Mt, 272Bh, 268Db, the 268Db decaying by SF events. RADIOACTIVITY 276Mt, 280Rg(α)[from α decay chain of 288Mc formed in 243Am(48Ca, 3n), E=262 MeV at LBNL cyclotron facility]; measured Eα, Iα, Eγ, Iγ, E(x rays), αγ-, α(x ray)-, γγ-coin, half-lives of 276Mt and 280Rg isotopes. 272Bh, 276Mt; deduced levels, multipolarities, α hindrance factors. GEANT4 simulations of α and photon spectra. No K-x rays were definitely assigned thus uncertain Z identification.
doi: 10.1103/PhysRevC.92.021301
2015HE22 Phys.Rev. C 92, 024315 (2015) T.W.Henry, M.A.Bentley, R.M.Clark, P.J.Davies, V.M.Bader, T.Baugher, D.Bazin, C.W.Beausang, J.S.Berryman, A.M.Bruce, C.M.Campbell, H.L.Crawford, M.Cromaz, P.Fallon, A.Gade, J.Henderson, H.Iwasaki, D.G.Jenkins, I.Y.Lee, A.Lemasson, S.M.Lenzi, A.O.Macchiavelli, D.R.Napoli, A.J.Nichols, S.Paschalis, M.Petri, F.Recchia, J.Rissanen, E.C.Simpson, S.R.Stroberg, R.Wadsworth, D.Weisshaar, A.Wiens, C.Walz Triplet energy differences and the low lying structure of 62Ga NUCLEAR REACTIONS 9Be(64Ga, 62Ga), (65Ge, 62Ga), E not given, [secondary 64Ga and 65Ge beams extracted using A1900 separator from 9Be(78Kr, X), E=150 MeV/nucleon primary reaction]; measured Eγ, Iγ, 62Ga particle spectra, (62Ga)γ-, γγ-coin using Gamma-Ray Energy Tracking In-Beam Nuclear Array (GRETINA) for γ rays and S800 spectrograph and cathode readout drift chambers for particles at NSCL-MSU facility. 62Ga; deduced levels populated by 2n and 1p2n knockout reactions, J, π, isospin using triplet energy differences (TED) as guide. Comparison with shell-model predictions of low lying T=0 and T=1 states using ANTOINE and LNPS interactions. Cross section calculations for the knockout process. COMPILATION A=22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66, 74; reviewed systematics of triplet energy differences (TED) for the known T=1, 2+ states.
doi: 10.1103/PhysRevC.92.024315
2015LI33 Phys.Rev. C 92, 024319 (2015); Erratum Phys.Rev. C 94, 069904 (2016) S.N.Liddick, W.B.Walters, C.J.Chiara, R.V.F.Janssens, B.Abromeit, A.Ayres, A.Bey, C.R.Bingham, M.P.Carpenter, L.Cartegni, J.Chen, H.L.Crawford, I.G.Darby, R.Grzywacz, J.Harker, C.R.Hoffman, S.Ilyushkin, F.G.Kondev, N.Larson, M.Madurga, D.Miller, S.Padgett, S.V.Paulauskas, M.M.Rajabali, K.Rykaczewski, D.Seweryniak, S.Suchyta, S.Zhu Analogous intruder behavior near Ni, Sn, and Pb isotopes RADIOACTIVITY 69Fe, 69Co, 69Ni(β-)[from 9Be(78Kr, X), E=140 MeV/nucleon]; measured Eγ, Iγ, (ion)γ- and βγ- correlated events, half-lives of ground states of 69Co, 69Fe, and half-life of an isomer in 69Co, absolute intensities of γ rays from the decay of directly produced 69Co and that from the decay of 69Fe using BCS system and SEGA array at NSCL-MSU facility. 69Cu, 69Co; deduced levels in 69Cu, and isomer in 69Co, J, π, intruder configuration; identified and discussed proton particle-hole intruder states originating from excitations across Z=28. 68Fe, 68Co(β-); observed γ. NUCLEAR REACTIONS 208Pb(70Zn, X)71Cu, E=440 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array at ATLAS-ANL facility. 71Cu; deduced high-spin levels, J, π, band; discussed systematics of level structure and proton particle-hole intruder states in 67,69,71Cu.
doi: 10.1103/PhysRevC.92.024319
2014CR02 Phys.Rev. C 89, 041303 (2014) H.L.Crawford, P.Fallon, A.O.Macchiavelli, R.M.Clark, B.A.Brown, J.A.Tostevin, D.Bazin, N.Aoi, P.Doornenbal, M.Matsushita, H.Scheit, D.Steppenbeck, S.Takeuchi, H.Baba, C.M.Campbell, M.Cromaz, E.Ideguchi, N.Kobayashi, Y.Kondo, G.Lee, I.Y.Lee, J.Lee, K.Li, S.Michimasa, T.Motobayashi, T.Nakamura, S.Ota, S.Paschalis, M.Petri, T.Sako, H.Sakurai, S.Shimoura, M.Takechi, Y.Togano, H.Wang, K.Yoneda Shell and shape evolution at N = 28: The 40Mg ground state NUCLEAR REACTIONS C(42Si, 40Mg), [42Si secondary beam from 9Be(48Ca, X), E=345 MeV/nucleon], E=238 MeV/nucleon; measured reaction products, inclusive σ for the production of 40Mg through two-proton knockout using BigRIPS and ZDS spectrometers at RIBF-RIKEN facility. 40Mg; deduced σ for ground state; calculated levels, J, π, σ, probabilities of the prolate contributions in 42Si and 40Mg ground-state wave functions using SDPF-MU and SDPFU-Si shell-models with eikonal reaction theory.
doi: 10.1103/PhysRevC.89.041303
2014GA07 Phys.Rev.Lett. 112, 112503 (2014) A.Gade, R.V.F.Janssens, D.Weisshaar, B.A.Brown, E.Lunderberg, M.Albers, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, C.M.Campbell, M.P.Carpenter, C.J.Chiara, H.L.Crawford, M.Cromaz, U.Garg, C.R.Hoffman, F.G.Kondev, C.Langer, T.Lauritsen, I.Y.Lee, S.M.Lenzi, J.T.Matta, F.Nowacki, F.Recchia, K.Sieja, S.R.Stroberg, J.A.Tostevin, S.J.Williams, K.Wimmer, S.Zhu Nuclear Structure Towards N=40 60Ca: In-Beam γ-Ray Spectroscopy of 58, 60Ti NUCLEAR REACTIONS Be(61V, X)58Ti/60Ti, E=90 MeV/nucleon; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced energy levels, J, π, partial σ. Comparison with calculations using GXPF1A and LNPS spectroscopic factors, GRETINA at MSU.
doi: 10.1103/PhysRevLett.112.112503
2014MA85 Phys.Rev.Lett. 113, 182501 (2014) T.Marchi, G.de Angelis, J.J.Valiente-Dobon, V.M.Bader, T.Baugher, D.Bazin, J.Berryman, A.Bonaccorso, R.Clark, L.Coraggio, H.L.Crawford, M.Doncel, E.Farnea, A.Gade, A.Gadea, A.Gargano, T.Glasmacher, A.Gottardo, F.Gramegna, N.Itaco, P.R.John, R.Kumar, S.M.Lenzi, S.Lunardi, S.McDaniel, C.Michelagnoli, D.Mengoni, V.Modamio, D.R.Napoli, B.Quintana, A.Ratkiewicz, F.Recchia, E.Sahin, R.Stroberg, D.Weisshaar, K.Wimmer, R.Winkler Quadrupole Transition Strength in the 74Ni Nucleus and Core Polarization Effects in the Neutron-Rich Ni Isotopes NUCLEAR REACTIONS 197Au(74Ni, 74Ni'), E=95.8 MeV/nucleon; measured reaction products, Eγ, Iγ. 74Ni; deduced energy levels, B(E2). Comparison with shell model calculations.
doi: 10.1103/PhysRevLett.113.182501
2014SU07 Phys.Rev. C 89, 034317 (2014) S.Suchyta, S.N.Liddick, C.J.Chiara, W.B.Walters, M.P.Carpenter, H.L.Crawford, G.F.Grinyer, G.Gurdal, A.Klose, E.A.McCutchan, J.Pereira, S.Zhu β decay of 61, 63V and low-energy level schemes of 61, 63Cr RADIOACTIVITY 61,63V(β-), (β-n)[from 9Be(76Ge, X), E=130 MeV/nucleon]; measured Eγ, Iγ, γγ-, (fragment)γ-coin, I(β-), half-lives of 61,63V ground states using A1900 fragment separator, Beta Counting System (BCS) and Segmented Ge Array (SeGA) at NSCL-MSU facility. 61,63Cr; deduced levels, J, π, %β-n, internal-conversion coefficient, multipolarity, configurations. Comparison with shell-model calculations. NUCLEAR STRUCTURE 55,57,59,61Cr; calculated levels, J, π, configuration amplitudes using shell-model with GXPF1A and KB3G interactions. Comparison with experimental data.
doi: 10.1103/PhysRevC.89.034317
2014SU11 Phys.Rev. C 89, 067303 (2014) S.Suchyta, S.N.Liddick, C.J.Chiara, W.B.Walters, M.P.Carpenter, H.L.Crawford, G.F.Grinyer, G.Gurdal, A.Klose, E.A.McCutchan, J.Pereira, S.Zhu β and isomeric decay of 64V RADIOACTIVITY 64V(β-)[from 9Be(76Ge, X), E=130 MeV/nucleon]; measured Eγ, βγ-, (64V)γ-coin, half-life of 64V g.s. using A1900 fragment separator and SeGA array at NSCL-MSU facility. 64Cr; deduced energy of first 2+ level. Systematics of first 2+ and 4+ states in A=54-64 even-even Cr nuclei. NUCLEAR REACTIONS 9Be(76Ge, X), E=130 MeV/nucleon; measured yields of reaction products, delayed Eγ. 64V; deduced isomer and its half-life.
doi: 10.1103/PhysRevC.89.067303
2013CR02 Phys.Rev.Lett. 110, 242701 (2013) H.L.Crawford, R.M.Clark, P.Fallon, A.O.Macchiavelli, T.Baugher, D.Bazin, C.W.Beausang, J.S.Berryman, D.L.Bleuel, C.M.Campbell, M.Cromaz, G.de Angelis, A.Gade, R.O.Hughes, I.Y.Lee, S.M.Lenzi, F.Nowacki, S.Paschalis, M.Petri, A.Poves, A.Ratkiewicz, T.J.Ross, E.Sahin, D.Weisshaar, K.Wimmer, R.Winkler Quadrupole Collectivity in Neutron-Rich Fe and Cr Isotopes NUCLEAR REACTIONS Bi(66Fe, 66Fe'), (68Fe, 68Fe'), (64Cr, 64Cr'), E<130 MeV/nucleon; measured reaction products, Eγ, Iγ. 66,68Fe, 64Cr; deduced σ, B(E2). Comparison with state-of-the-art large-scale shell-model calculations within the full fpgd neutron orbital model space using the Lenzi-Nowacki-Poves-Sieja effective interaction.
doi: 10.1103/PhysRevLett.110.242701
2013LI04 Phys.Rev. C 87, 014325 (2013) S.N.Liddick, B.Abromeit, A.Ayres, A.Bey, C.R.Bingham, B.A.Brown, L.Cartegni, H.L.Crawford, I.G.Darby, R.Grzywacz, S.Ilyushkin, M.Hjorth-Jensen, N.Larson, M.Madurga, D.Miller, S.Padgett, S.V.Paulauskas, M.M.Rajabali, K.Rykaczewski, S.Suchyta Low-energy level schemes of 66, 68Fe and inferred proton and neutron excitations across Z=28 and N=40 RADIOACTIVITY 66,68Mn(β-)[from 9Be(86Kr, X), E=140 MeV/nucleon]; measured Eγ, Iγ, (Mn ions)γ-, γγ-coin, Eβ, Iβ, T1/2 using the BCS system and SeGA array at NSCL facility. 66,68Fe; deduced levels, J, π, β feedings, logft. 66,68Fe, 68Ni; comparison of experimental levels, J, π with shell-model calculations.
doi: 10.1103/PhysRevC.87.014325
2013RE18 Phys.Rev. C 88, 041302 (2013) F.Recchia, C.J.Chiara, R.V.F.Janssens, D.Weisshaar, A.Gade, W.B.Walters, M.Albers, M.Alcorta, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, P.F.Bertone, B.A.Brown, C.M.Campbell, M.P.Carpenter, J.Chen, H.L.Crawford, H.M.David, D.T.Doherty, C.R.Hoffman, F.G.Kondev, A.Korichi, C.Langer, N.Larson, T.Lauritsen, S.N.Liddick, E.Lunderberg, A.O.Macchiavelli, S.Noji, C.Prokop, A.M.Rogers, D.Seweryniak, S.R.Stroberg, S.Suchyta, S.Williams, K.Wimmer, S.Zhu Configuration mixing and relative transition rates between low-spin states in 68Ni NUCLEAR REACTIONS 208Pb(70Zn, X)68Ni, E=440 MeV; measured Eγ, Iγ, (68Ni)γ-, γγ-coin, prompt and delayed γ rays, level half-life using Gammasphere array at ATLAS-ANL facility. 9Be(70Ni, X)68Ni, E=75 MeV/nucleon, [secondary 70Ni beam from 9Be(82Se, X), E=140 MeV/nucleon primary reaction]; measured Eγ, Iγ, γγ-coin, prompt and delayed γ rays, level half-life using S800 spectrograph, GRETINA and CsI(Na) arrays at NSCL-MSU facility. 68Ni; deduced levels, J, π, B(E2) ratios. Comparison with shell-model calculations using jj44pna, jj44b, JUN45, and LNPS effective interactions. Discussed configuration mixing.
doi: 10.1103/PhysRevC.88.041302
2013RI07 Phys.Rev. C 88, 044313 (2013) J.Rissanen, R.M.Clark, K.E.Gregorich, J.M.Gates, C.M.Campbell, H.L.Crawford, M.Cromaz, N.E.Esker, P.Fallon, U.Forsberg, O.Gothe, I.-Y.Lee, H.L.Liu, A.O.Machiavelli, P.Mudder, H.Nitsche, G.Pang, A.Rice, D.Rudolph, M.A.Stoyer, A.Wiens, F.R.Xu Decay of the high-K isomeric state to a rotational band in 257Rf NUCLEAR REACTIONS 208Pb(50Ti, n), (50Ti, 2n), E=238, 243, 258 MeV; measured time-of-flight for Rf implantation events, recoil-electron, recoil-electron-α, recoil-electron-fission events, Eγ, Iγ, ce, Eα, γ(recoil electron)-, γ(recoil electron)-fission coin, delayed γ and ce, half-lives of ground state and isomers at LBNL cyclotron facility. 257Rf; deduced high-spin levels, J, π, multipolarity, band, high-K isomer, [gK-gR]/Q0 ratios, configurations of 1-qp and 3-qp states, hindrance factor. 256Rf; deduced levels, K-isomers, J, π, multipolarity, configurations. RADIOACTIVITY 257Rf, 253No(α)[257Rf from 208Pb(50Ti, n), E=238, 243, 258 MeV]; measured Eα. 249Fm, 253No; deduced levels.
doi: 10.1103/PhysRevC.88.044313
2012HU01 Phys.Rev. C 85, 024613 (2012) R.O.Hughes, C.W.Beausang, T.J.Ross, J.T.Burke, N.D.Scielzo, M.S.Basunia, C.M.Campbell, R.J.Casperson, H.L.Crawford, J.E.Escher, J.Munson, L.W.Phair, J.J.Ressler Utilizing (p, d) and (p, t) reactions to obtain (n, f) cross sections in uranium nuclei via the surrogate-ratio method NUCLEAR REACTIONS 236,238U(p, d), (p, t), E=28 MeV; measured E(d), I(d), E(t), I(t), fission spectra, (particle)(fission)-, (particle)γ-coin, fission fragment anisotropy ratios using STARS detector array at LBNL cyclotron facility; deduced σ[236U(n, F)]/σ[234U(n, F)], σ[235U(n, F)]/σ[233U(n, F)], σ[234U(n, F)]/σ[233U(n, F)], σ[236U(n, F)]/σ[235U(n, F)] reaction cross section ratios for E(n)=0-7 MeV. Surrogate-ratio method. Comparison with ENDF/B-VII evaluation.
doi: 10.1103/PhysRevC.85.024613
2012HU14 J.Phys.:Conf.Ser. 381, 012064 (2012) R.O.Hughes, C.W.Beausang, T.J.Ross, J.T.Burke, N.D.Scielzo, M.S.Basunia, C.M.Campbell, R.J.Casperson, H.L.Crawford, J.Munson, L.Phair, J.J.Ressler To the continuum and beyond: Structure of U nuclei NUCLEAR REACTIONS 236,238U(p, X), E=28 MeV; measured outgoing light ions using STARS Si telescope, (particle)(fission)-coin, Eγ, Iγ using Ge detectors of LIBERACE array, (particle)γ-coin; deduced σ(234U(n, f))/σ(236U(n, f)) ratio vs neutron energy using (p, dF) surrogate. 235,237U deduced levels, J, π, γ transitions.
doi: 10.1088/1742-6596/381/1/012064
2012LI02 Phys.Rev. C 85, 014328 (2012) S.N.Liddick, B.Abromeit, A.Ayres, A.Bey, C.R.Bingham, M.Bolla, L.Cartegni, H.L.Crawford, I.G.Darby, R.Grzywacz, S.Ilyushkin, N.Larson, M.Madurga, D.Miller, S.Padgett, S.Paulauskas, M.M.Rajabali, K.Rykaczewski, S.Suchyta Low-energy structure of 2766Co39 and 2768Co41 populated through β decay RADIOACTIVITY 66,68Fe(β-)[from 9Be(86Kr, X), E=130 MeV/nucleon]; measured energy loss, time of flight, Iβ, Eγ, Iγ, γγ-, (recoil)γ-coin, half-life. A1900 Fragment separator and SeGA array at NSCL facility. 66,68Co; deduced levels, J, π, multipolarity, logft, spherical and Nilsson model configurations.
doi: 10.1103/PhysRevC.85.014328
2012LO08 Phys.Rev. C 86, 014313 (2012) G.Lorusso, A.Becerril, A.Amthor, T.Baumann, D.Bazin, J.S.Berryman, B.A.Brown, R.H.Cyburt, H.L.Crawford, A.Estrade, A.Gade, T.Ginter, C.J.Guess, M.Hausmann, G.W.Hitt, P.F.Mantica, M.Matos, R.Meharchand, K.Minamisono, F.Montes, G.Perdikakis, J.Pereira, M.Portillo, H.Schatz, K.Smith, J.Stoker, A.Stolz, R.G.T.Zegers β-delayed proton emission in the 100Sn region RADIOACTIVITY 89Ru, 91,92Rh, 93Pd, 95,96,96mAg, 96,97,97mCd, 98,98m,99,100In, 100,101Sn[from 9Be(112Sn, X), E=140 MeV/nucleon](β+), (EC), (β+p); measured Eγ, Iγ, β spectra, E(p), I(p), βγ-coin, βp-coin, γβp-coin, fragment yields, half-lives, β-delayed proton emission branching ratios using NSCL Beta Counting System and SeGA array. Discussed rp-process implications. Comparison with previous studies and theoretical calculations. X-ray bursts calculations.
doi: 10.1103/PhysRevC.86.014313
2012PE16 Phys.Rev. C 86, 044329 (2012) M.Petri, S.Paschalis, R.M.Clark, P.Fallon, A.O.Macchiavelli, K.Starosta, T.Baugher, D.Bazin, L.Cartegni, H.L.Crawford, M.Cromaz, U.Datta Pramanik, G.de Angelis, A.Dewald, A.Gade, G.F.Grinyer, S.Gros, M.Hackstein, H.B.Jeppesen, I.Y.Lee, S.McDaniel, D.Miller, M.M.Rajabali, A.Ratkiewicz, W.Rother, P.Voss, K.A.Walsh, D.Weisshaar, M.Wiedeking, B.A.Brown, C.Forssen, P.Navratil, R.Roth Structure of 16C: Testing shell model and ab initio approaches NUCLEAR REACTIONS 9Be(17N, X)16O, E=72 MeV/nucleon, [17N secondary beam from 9Be(22Ne, X), E=150 MeV/nucleon primary reaction]; measured Eγ, Iγ, σ, half-life of first 2+ state in 16O by RDM plunger method using SeGA array at NSCL facility. 16C; deduced levels, J, π, B(E2), spectroscopic factors and proton amplitude of first 2+ state, gamma-ray branching ratios from second 2+ state. Comparison of with shell-model calculations using three interactions.
doi: 10.1103/PhysRevC.86.044329
2012VO05 Phys.Rev. C 86, 011303 (2012) P.Voss, T.Baugher, D.Bazin, R.M.Clark, H.L.Crawford, A.Dewald, P.Fallon, A.Gade, G.F.Grinyer, H.Iwasaki, A.O.Macchiavelli, S.McDaniel, D.Miller, M.Petri, A.Ratkiewicz, W.Rother, K.Starosta, K.A.Walsh, D.Weisshaar, C.Forssen, R.Roth, P.Navratil Excited-state transition-rate measurements in 18C NUCLEAR REACTIONS 9Be(19Ne, p)18C, [19Ne secondary beam from 9Be(22Ne, X), E=120 MeV/nucleon primary beam], E=72 MeV/nucleon; measured time-of-flight, energy loss, Eγ, Iγ, (18C)γ-coin using SeGA array, level half-lives by RDM method using the Koln/NSCL plunger device. 18C; deduced levels, J, π, B(E2) of first two 2+ states. 14,18C; comparison of experimental values of level energies, B(E2), B(M1) and quadrupole moment of first two 2+ states with calculations using large-scale ab initio no-core shell model calculations. Inclusion of three-body forces to explain low-lying states in A=18 system.
doi: 10.1103/PhysRevC.86.011303
2011BE34 Phys.Rev. C 84, 041303 (2011) A.D.Becerril, G.Lorusso, A.M.Amthor, T.Baumann, D.Bazin, J.S.Berryman, B.A.Brown, H.L.Crawford, A.Estrade, A.Gade, T.Ginter, C.J.Guess, M.Hausmann, G.W.Hitt, P.F.Mantica, M.Matos, R.Meharchand, K.Minamisono, F.Montes, G.Perdikakis, J.Pereira, M.Portillo, H.Schatz, K.Smith, J.Stoker, A.Stolz, R.G.T.Zegers High-spin μs isomeric states in 96Ag NUCLEAR REACTIONS 9Be(112Sn, X), E=120 MeV/nucleon; measured Eγ, Iγ, γγ-, (fragment)γγ-coin, isomer T1/2. 96Ag; deduced levels, J, π. A1900 Fragment Separator and SeGA array at NSCL. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.84.041303
2011FR17 J.Phys.:Conf.Ser. 312, 092025 (2011) C.Fransen, W.Rother, H.Iwasaki, A.Dewald, T.Baugher, D.Bazin, B.A.Brown, H.L.Crawford, A.Gade, T.N.Ginter, T.Glasmacher, G.F.Grinyer, M.Hackstein, G.Ilie, J.Jolie, S.M.Lenzi, S.McDaniel, D.Miller, P.Petkov, T.Pissulla, A.Ratkiewicz, K.Starosta, C.A.Ur, P.Voss, K.A.Walsh, D.Weisshaar, K.O.Zell Collectivity of Exotic Heavy Fe Isotopes NUCLEAR REACTIONS 197Au(62Fe, X), E=97.8 MeV/nucleon;197Au(64Fe, X), E=95.0 MeV/nucleon;197Au(66Fe, X), E=88.3 MeV/nucleon; measured Doppler shifted Coulomb excitation Eγ, Iγ(θ=30, 1400, t); deduced B(E2), E(2+1). Compared with other data for near-by nuclei.
doi: 10.1088/1742-6596/312/9/092025
2011LI50 Phys.Rev. C 84, 061305 (2011) S.N.Liddick, S.Suchyta, B.Abromeit, A.Ayres, A.Bey, C.R.Bingham, M.Bolla, M.P.Carpenter, L.Cartegni, C.J.Chiara, H.L.Crawford, I.G.Darby, R.Grzywacz, G.Gurdal, S.Ilyushkin, N.Larson, M.Madurga, E.A.McCutchan, D.Miller, S.Padgett, S.V.Paulauskas, J.Pereira, M.M.Rajabali, K.Rykaczewski, S.Vinnikova, W.B.Walters, S.Zhu Shape coexistence along N=40 RADIOACTIVITY 64,66Mn(IT)[from 9Be(76Ge, X), E=140 MeV/nucleon]; 64,66Cr(β-)[from 9Be(86Kr, X), E=130 MeV/nucleon]; measured Eγ, Iγ, (fragment)βγ-, γγ-coin, γ(t), half-lives. 64,66Mn; deduced levels, J, π, beta feedings, log ft, configurations.
doi: 10.1103/PhysRevC.84.061305
2011LO09 Phys.Lett. B 699, 141 (2011) G.Lorusso, A.Becerril, A.Amthor, T.Baumann, D.Bazin, J.S.Berryman, B.A.Brown, R.H.Cyburt, H.L.Crawford, A.Estrade, A.Gade, T.Ginter, C.J.Guess, M.Hausmann, G.W.Hitt, P.F.Mantica, M.Matos, R.Meharchand, K.Minamisono, F.Montes, G.Perdikakis, J.Pereira, M.Portillo, H.Schatz, K.Smith, J.Stoker, A.Stolz, R.G.T.Zegers Half-lives of ground and isomeric states in 97Cd and the astrophysical origin of 96Ru RADIOACTIVITY 97Cd(β+), (β+p) [from 9Be(112Sn, X), E=120 MeV/nucleon]; measured proton spectra, Eγ, Iγ; deduced evidence for a high spin isomer (25/2+), T1/2, level energies, J, π. Comparison with nuclear shell model and astrophysical overproduction factors calculations.
doi: 10.1016/j.physletb.2011.03.043
2011PE21 Phys.Rev.Lett. 107, 102501 (2011) M.Petri, P.Fallon, A.O.Macchiavelli, S.Paschalis, K.Starosta, T.Baugher, D.Bazin, L.Cartegni, R.M.Clark, H.L.Crawford, M.Cromaz, A.Dewald, A.Gade, G.F.Grinyer, S.Gros, M.Hackstein, H.B.Jeppesen, I.Y.Lee, S.McDaniel, D.Miller, M.M.Rajabali, A.Ratkiewicz, W.Rother, P.Voss, K.A.Walsh, D.Weisshaar, M.Wiedeking, B.A.Brown Lifetime Measurement of the 2+1 State in 20C NUCLEAR REACTIONS 9Be, 184W(22O, X)20C, E=101 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced lifetime, B(E2). Comparison with systematics, shell model calculations.
doi: 10.1103/PhysRevLett.107.102501
2011RO02 Phys.Rev.Lett. 106, 022502 (2011) W.Rother, A.Dewald, H.Iwasaki, S.M.Lenzi, K.Starosta, D.Bazin, T.Baugher, B.A.Brown, H.L.Crawford, C.Fransen, A.Gade, T.N.Ginter, T.Glasmacher, G.F.Grinyer, M.Hackstein, G.Ilie, J.Jolie, S.McDaniel, D.Miller, P.Petkov, Th.Pissulla, A.Ratkiewicz, C.A.Ur, P.Voss, K.A.Walsh, D.Weisshaar, K.-O.Zell Enhanced Quadrupole Collectivity at N=40: The Case of Neutron-Rich Fe Isotopes NUCLEAR REACTIONS 197Au(62Fe, 62Fe'), (64Fe, 64Fe'), (66Fe, 66Fe'), E=97.8, 95, 88.3 MeV/nucleon; measured Eγ, Iγ. 62,64,66Fe; deduced lifetimes, B(E2), deformation parameters. Comparison with shell model calculations, experimental data. Secondary beams from 76Ge fragmentation. COMPILATION Cr, Fe, Ni, Zn, Ge, Se, Kr; Compiled nuclear structure data, B(E2) values and energy of the first excited states for N=24-56.
doi: 10.1103/PhysRevLett.106.022502
2010CR02 Phys.Rev. C 82, 014311 (2010) H.L.Crawford, R.V.F.Janssens, P.F.Mantica, J.S.Berryman, R.Broda, M.P.Carpenter, N.Cieplicka, B.Fornal, G.F.Grinyer, N.Hoteling, B.P.Kay, T.Lauritsen, K.Minamisono, I.Stefanescu, J.B.Stoker, W.B.Walters, S.Zhu β decay and isomeric properties of neutron-rich Ca and Sc isotopes RADIOACTIVITY 53,54,55,56,57Sc, 53,54Ca(β-); 54,56Sc(IT)[from Be(76Ge, X), E=130 MeV/nucleon]; measured Eγ, Iγ, (fragment)β-, γγ-, βγ-, (fragment)βγ-coin, half-lives. 53,54,55,56,57Ti, 53,54,56Sc; deduced levels, J, π, logft, configurations. Comparison with GXPF1 shell-model calculations. 54Ti(β-); measured half-life. 54,55,56Sc(β-n); deduced %β--n. NUCLEAR STRUCTURE 52,54,56Sc; calculated levels, J, π using GXPF1 shell-model. NUCLEAR REACTIONS Be(76Ge, X)52Ca/53Ca/54Ca/53Sc/54Sc/55Sc/56Sc/55Ti/56Ti/57Ti/58Ti/57V/58V/59V/60V/, E=130 MeV/nucleon; measured yields.
doi: 10.1103/PhysRevC.82.014311
2009BE22 Phys.Rev. C 79, 064305 (2009) J.S.Berryman, K.Minamisono, W.F.Rogers, B.A.Brown, H.L.Crawford, G.F.Grinyer, P.F.Mantica, J.B.Stoker, I.S.Towner Doubly-magic nature of 56Ni: Measurement of the ground state nuclear magnetic dipole moment of 55Ni RADIOACTIVITY 55Ni(β+)[from 9Be(58Ni, X), E=160 MeV/nucleon];measured β asymmetry from spin polarized 55Ni ions, deduced g-factor. NUCLEAR MOMENTS 55Ni; measured g-factor by β-NMR method; deduced magnetic moment. 55Ni, 55Co; comparison of measured magnetic moments with shell-model calculations in full fp shell using GXPF1 interaction.
doi: 10.1103/PhysRevC.79.064305
2009CR02 Phys.Rev. C 79, 054320 (2009) H.L.Crawford, P.F.Mantica, J.S.Berryman, R.Broda, B.Fornal, C.R.Hoffman, N.Hoteling, R.V.F.Janssens, S.M.Lenzi, J.Pereira, J.B.Stoker, S.L.Tabor, W.B.Walters, X.Wang, S.Zhu Low-energy structure of 61Mn populated following β decay of 61Cr RADIOACTIVITY 61Cr(β-)[from Be(76Ge, X), E=130 MeV/nucleon]; measured Eγ, Iγ, γγ-, βγ-coin, half-life. 61Mn; deduced levels, J, π. 54,56,58,60,62Cr, 56,58,60,62,64,66,68Fe, 58,60,62,64,66,68,70Ni, 57,59,61,63Mn; level systematics and shell-model calculations. NUCLEAR REACTIONS 9Be(76Ge, X)57Sc/58Ti/59Ti/59V/60V/60Cr/61Cr/62Cr/62Mn/63Mn, E=130 MeV/nucleon; measured yields.
doi: 10.1103/PhysRevC.79.054320
2009CR03 Acta Phys.Pol. B40, 481 (2009) H.L.Crawford, R.V.F.Janssens, P.F.Mantica, J.S.Berryman, R.Broda, M.P.Carpenter, B.Fornal, G.F.Grinyer, N.Hoteling, B.Kay, T.Lauritsen, K.Minamisono, I.Stefanescu, J.B.Stoker, W.B.Walters, S.Zhu β Decay Studies of Neutron-Rich Nuclei Near 52Ca RADIOACTIVITY 54Sc, 50K, 53Ca(β-);measured Eγ, Iγ;deduced level scheme, Jπ, isomeric transitions.
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2009EA01 Phys.Rev. C 79, 024303 (2009); Publishers note Phys.Rev. C 80, 019907 (2009) M.C.East, A.E.Stuchbery, S.K.Chamoli, A.N.Wilson, H.L.Crawford, J.S.Pinter, T.Kibedi, P.F.Mantica g factor of the first excited state in 56Fe and implications for transient-field calibration in the Fe region NUCLEAR REACTIONS C(56Fe, 56Fe'), (57Fe, 57Fe'), E=2 MeV/nucleon; measured Eγ, Iγ(θ), γγ-, 12C-γ coin, angular correlations, precession angles. 56,57Fe; deduced g factors. NUCLEAR MOMENTS 56Fe, 57Fe; measured g factor of first 2+ state of 56Fe relative to that of the first 5/2- state in 57Fe using transient-field technique in Coulomb excitation.
doi: 10.1103/PhysRevC.79.024303
2009EA02 Phys.Rev. C 79, 024304 (2009); Publishers note Phys.Rev. C 80, 019908 (2009) M.C.East, A.E.Stuchbery, S.K.Chamoli, J.S.Pinter, H.L.Crawford, A.N.Wilson, T.Kibedi, P.F.Mantica Relative g-factor measurements in 54Fe, 56Fe, and 58Fe NUCLEAR REACTIONS C(54Fe, 54Fe'), (56Fe, 56Fe'), (58Fe, 58Fe), E=110 MeV/nucleon; measured Eγ, Iγ(θ), γγ-, 12C-γ coin, precession angles. 54,56,58Fe; deduced g factors. NUCLEAR MOMENTS 54,56,58Fe; measured g factors of first 2+ states of 54Fe and 58Fe relative to that of the first 2+ state in 56Fe using transient-field technique in Coulomb excitation in inverse kinematics. Comparison with shell-model calculations in fp model space.
doi: 10.1103/PhysRevC.79.024304
2009ST04 Phys.Rev. C 79, 015803 (2009) J.B.Stoker, P.F.Mantica, D.Bazin, A.Becerril, J.S.Berryman, H.L.Crawford, A.Estrade, C.J.Guess, G.W.Hitt, G.Lorusso, M.Matos, K.Minamisono, F.Montes, J.Pereira, G.Perdikakis, H.Schatz, K.Smith, R.G.T.Zegers β-decay half-life of the rp-process waiting-point nuclide 84Mo RADIOACTIVITY 80Y, 81Zr, 83,84Nb, 84Mo(EC), (β+) [from 9Be(124Xe, X), E=140 MeV/nucleon]; measured Eγ, (particle)-γ coin, (particle)-β coin, half-life. 64Ge, 68Se, 72Kr, 76Sr, 80Zr, 84Mo, 88Ru;systematics of half-lives and yrast states. Comparisons with QRPA predictions. NUCLEAR REACTIONS 9Be(124Xe, X)73As/74Se/76Br/77Kr/78Rb/79Sr/80Y/81,82Zr/83Nb/84Nb/84Mo, E=140 MeV/nucleon; measured yields.
doi: 10.1103/PhysRevC.79.015803
2008MA01 Phys.Rev. C 77, 014313 (2008) P.F.Mantica, R.Broda, H.L.Crawford, A.Damaske, B.Fornal, A.A.Hecht, C.Hoffman, M.Horoi, N.Hoteling, R.V.F.Janssens, J.Pereira, J.S.Pinter, J.B.Stoker, S.L.Tabor, T.Sumikama, W.B.Walters, X.Wang, S.Zhu β decay of neutron-rich 53-56Ca RADIOACTIVITY 53,54,55,56Ca(β-) [from 9Be(76Ge, X), E=140 MeV/nucleon; measured Eγ, Iγ, βγ-coin, half-lives. 54Ca; deduced Iβ, logft. 54Sc; levels, J, π, half-lives, B(M1), B(E2), comparison with calculations. NUCLEAR REACTIONS 9Be(76Ge, X)49Cl/50Ar/51Ar/52K/53K/54K/53Ca/54Ca/55Ca/56Ca/55Sc/56Sc/57Sc/57Ti/58Ti/59Ti/60V, E=140 MeV/nucleon; measured reaction yields.
doi: 10.1103/PhysRevC.77.014313
2008MA59 Bull.Am.Phys.Soc. 53, 64 ED.02 (2008) P.F.Mantica, H.L.Crawford, J.Pereira, J.S.Pinter, J.B.Stoker, R.Broda, B.Fornal, R.V.F.Janssens, X.Wang, S.Zhu, N.Hoteling, W.B.Walters, C.R.Hoffman, S.L.Tabor β decay of 51, 52Ar RADIOACTIVITY 51,52Ar(β-) [from Be(76Ge, X), E=130 MeV/nucleon]; measured decay products, Eβ, Iβ; deduced T1/2. NSCL beta counting system.
2008MI07 Phys.Lett. B 662, 389 (2008) K.Minamisono, P.F.Mantica, H.L.Crawford, J.S.Pinter, J.B.Stoker, Y.Utsuno, R.R.Weerasiri Quadrupole moment of 37K RADIOACTIVITY 37K(β+); measured electric quadrupole moment using the β-NQR technique. 35S, 37Ar, 35,37,39K, 39Ca; analyzed electric quadrupole moment using shell model and effective charge dependency.
doi: 10.1016/j.physletb.2008.03.049
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