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NSR database version of April 11, 2024.

Search: Author = G.Lotay

Found 67 matches.

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2023AN09      Phys.Rev. C 108, 034303 (2023)

A.N.Andreyev, D.Seweryniak, B.Andel, S.Antalic, D.T.Doherty, A.Korichi, C.Barton, L.Canete, M.P.Carpenter, R.M.Clark, P.A.Copp, J.G.Cubiss, J.Heery, Y.Hrabar, H.Huang, T.Huang, V.Karayonchev, F.G.Kondev, T.Lauritsen, Z.Liu, G.Lotay, C.Muller-Gatermann, S.Nandi, C.Page, D.H.Potterveld, P.H.Regan, W.Reviol, D.Rudolph, M.Siciliano, R.S.Sidhu, A.Sitarcik, P.J.Woods, Z.Yue, W.Zhang

α decay of the neutron-deficient isotope 190At

doi: 10.1103/PhysRevC.108.034303
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2023CA13      Phys.Rev. C 108, 035807 (2023)

L.Canete, D.T.Doherty, G.Lotay, D.Seweryniak, C.M.Campbell, M.P.Carpenter, W.N.Catford, K.A.Chipps, J.Henderson, R.G.Izzard, R.V.F.Janssens, H.Jayatissa, J.Jose, A.R.L.Kennington, F.G.Kondev, A.Korichi, T.Lauritsen, C.Muller-Gatermann, C.Paxman, Zs.Podolyak, B.J.Reed, P.H.Regan, W.Reviol, M.Siciliano, G.L.Wilson, R.Yates, S.Zhu

Confirmation of a new resonance in 26Si and contribution of classical novae to the galactic abundance of 26Al

doi: 10.1103/PhysRevC.108.035807
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Data from this article have been entered in the XUNDL database. For more information, click here.


2023LA06      J.Phys.(London) G50, 033002 (2023)

A.M.Laird, M.Lugaro, A.Kankainen, P.Adsley, D.W.Bardayan, H.E.Brinkman, B.Cote, C.M.Deibel, R.Diehl, F.Hammache, J.W.den Hartogh, J.Jose, D.Kurtulgil, C.Lederer-Woods, G.Lotay, G.Meynet, S.Palmerini, M.Pignatari, R.Reifarth, N.de Sereville, A.Sieverding, R.J.Stancliffe, T.C.L.Trueman, T.Lawson, J.S.Vink, C.Massimi, A.Mengoni

Progress on nuclear reaction rates affecting the stellar production of 26Al

NUCLEAR REACTIONS 25Mg, 25,26Al(p, γ), 26Al(n, p), (n, α), 25Mg(α, n), 23Na(α, p), 24,25Mg(n, γ), E<300 KeV; analyzed available data; deduced σ, reaction rates, resonance parameters.

doi: 10.1088/1361-6471/ac9cf8
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2023WI02      Phys.Rev. C 107, 035803 (2023)

M.Williams, B.Davids, G.Lotay, N.Nishimura, T.Rauscher, S.A.Gillespie, M.Alcorta, A.M.Amthor, G.C.Ball, S.S.Bhattacharjee, V.Bildstein, W.N.Catford, D.T.Doherty, N.E.Esker, A.B.Garnsworthy, G.Hackman, K.Hudson, A.Lennarz, C.Natzke, B.Olaizola, A.Psaltis, C.E.Svensson, J.Williams, D.Walter, D.Yates

Cross sections of the 83Rb(p, γ)84Sr and 84Kr(p, γ)85Rb reactions at energies characteristic of the astrophysical γ process

NUCLEAR REACTIONS 1H(83Rb, γ)84Sr, E=2.4, 2.7 MeV/nucleon; 1H(84Kr, γ)85Rb, E=2.7 MeV/nucleon; measured Eγ, Iγ, (recoil)γ-coin; deduced σ(E). 1H(83Rb, γ)84Sr, E=2.4, 2.7 MeV/nucleon; deduced thermonuclear reaction rate. Comparison to SMARAGD and NON-SMOKER calculations. Relevance to the abundance of 84Sr produced during the γ process in supernovae. The EMMA recoil mass spectrometer with 12 Compton-suppressed HPGe detectors of the TIGRESS array at ISAC-II facility of TRIUMF.

doi: 10.1103/PhysRevC.107.035803
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2022LO01      Phys.Rev.Lett. 128, 042701 (2022)

G.Lotay, A.Lennarz, C.Ruiz, C.Akers, A.A.Chen, G.Christian, D.Connolly, B.Davids, T.Davinson, J.Fallis, D.A.Hutcheon, P.Machule, L.Martin, D.J.Mountford, A.St.J.Murphy

Radiative Capture on Nuclear Isomers: Direct Measurement of the 26mAl(p, γ)27Si Reaction

NUCLEAR REACTIONS 1H(26Al, γ), E=390 keV/nucleon; measured reaction products, Eγ, Iγ; deduced resonance energies and parameters, astrophysical reaction rates. Comparison with available data.

doi: 10.1103/PhysRevLett.128.042701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2724. Data from this article have been entered in the XUNDL database. For more information, click here.


2022LO05      Phys.Rev. C 105, L042801 (2022)

G.Lotay, D.T.Doherty, R.V.F.Janssens, D.Seweryniak, H.M.Albers, S.Almaraz-Calderon, M.P.Carpenter, A.E.Champagne, C.J.Chiara, C.R.Hoffman, C.Iliadis, A.Kankainen, T.Lauritsen, S.Zhu

Revised decay properties of the key 93-keV resonance in the 25Mg(p, γ) reaction and its influence on the MgAl cycle in astrophysical environments

NUCLEAR REACTIONS 11B(16O, n), E=19 MeV; measured Eγ, Iγ, γ(θ), γγγ-coin. 26Al; deduced levels J, π, branchings. Obtained ground state branching for 93-keV resonance of 25Mg+p system which corresponds to 6398 keV level in 26Al. Comparison to other experimental data. Discussed impact on the production of cosmic γ rays. Gammasphere array with 99 detectors at ATLAS accelerator (ANL).

doi: 10.1103/PhysRevC.105.L042801
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Data from this article have been entered in the XUNDL database. For more information, click here.


2022LO11      Phys.Lett. B 833, 137361 (2022)

G.Lotay, J.Henderson, W.N.Catford, F.A.Ali, J.Berean, N.Bernier, S.S.Bhattacharjee, M.Bowry, R.Caballero-Folch, B.Davids, T.E.Drake, A.B.Garnsworthy, F.Ghazi Moradi, S.A.Gillespie, B.Greaves, G.Hackman, S.Hallam, D.Hymers, E.Kasanda, D.Levy, B.K.Luna, A.Mathews, Z.Meisel, M.Moukaddam, D.Muecher, B.Olaizola, N.A.Orr, H.P.Patel, M.M.Rajabali, Y.Saito, J.Smallcombe, M.Spencer, C.E.Svensson, K.Whitmore, M.Williams

Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts

NUCLEAR REACTIONS 2H(23Ne, p)24Ne, E=8 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced excitation energies, J, π, spectroscopic factors, σ(θ), reduced uncertainties for 23Al + p resonance strengths. Comparison with reaction calculations in the Adiabatic Distorted Wave Approximation (ADWA), using the code TWOFNR. TIGRESS array, the ISAC-II facility at TRIUMF.

doi: 10.1016/j.physletb.2022.137361
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2811. Data from this article have been entered in the XUNDL database. For more information, click here.


2021CA19      Phys.Rev. C 104, L022802 (2021)

L.Canete, G.Lotay, G.Christian, D.T.Doherty, W.N.Catford, S.Hallam, D.Seweryniak, H.M.Albers, S.Almaraz-Calderon, E.A.Bennett, M.P.Carpenter, C.J.Chiara, J.P.Greene, C.R.Hoffman, R.V.F.Janssens, J.Jose, A.Kankainen, T.Lauritsen, A.Matta, M.Moukaddam, S.Ota, A.Saastamoinen, R.Wilkinson, S.Zhu

New constraints on the 25Al (p, γ) reaction and its influence on the flux of cosmic γ rays from classical nova explosions

NUCLEAR REACTIONS 11B(16O, p)26Mg, E=19 MeV from Argonne ATLAS accelerator; measured Eγ, Iγ, γγ-coin, γ(θ) and level half-lives by DSAM using Gammasphere array of 99 HPGe detectors. 2H(25Mg, p)26Mg, E=10 MeV/nucleon from Texas A and M cyclotron; measured outgoing protons and scattered deuterons using the TIARA Si array, and 26Mg recoils by the MDM-2 magnetic spectrometer with Oxford ionization chamber, angular distributions of scattered deuterons and protons. 26Mg; deduced levels, J, π, resonances, spectroscopic factors. 26Si; deduced levels, resonances, J, π, Γp, Γγ, resonance strengths by comparing with the level structures of mirror nucleus 26Mg. 25Al(p, γ)26Si, T=0.2-0.4 GK; deduced stellar reaction rate by considering the contribution of resonant states in 26Si, galactic abundance of 26Al from classical novae; performed nova outburst simulations using the hydrodynamic Lagrangian time-implicit code SHIVA.

doi: 10.1103/PhysRevC.104.L022802
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2658. Data from this article have been entered in the XUNDL database. For more information, click here.


2021HA01      Phys.Rev.Lett. 126, 042701 (2021)

S.Hallam, G.Lotay, A.Gade, D.T.Doherty, J.Belarge, P.C.Bender, B.A.Brown, J.Browne, W.N.Catford, B.Elman, A.Estrade., M.R.Hall, B.Longfellow, E.Lunderberg, F.Montes, M.Moukaddam, P.O'Malley, W.-J.Ong, H.Schatz, D.Seweryniak, K.Schmidt, N.K.Timofeyuk, D.Weisshaar, R.G.T.Zegers

Exploiting Isospin Symmetry to Study the Role of Isomers in Stellar Environments

NUCLEAR REACTIONS 12C, 2H(26Si, 11C), (26Si, p)27Si, E=30 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, partial σ, branching ratios, J, π, spectroscopic factors. Comparison with shell model calculations, REACLIB data. GRETINA array.

doi: 10.1103/PhysRevLett.126.042701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2594. Data from this article have been entered in the XUNDL database. For more information, click here.


2021KE04      Phys.Rev. C 103, 035805 (2021)

A.R.L.Kennington, G.Lotay, D.T.Doherty, D.Seweryniak, C.Andreoiu, K.Auranen, M.P.Carpenter, W.N.Catford, C.M.Deibel, K.Hadynska-Klek, S.Hallam, D.Hoff, T.Huang, R.V.F.Janssens, S.Jazrawi, J.Jose, F.G.Kondev, T.Lauritsen, J.Li, A.M.Rogers, J.Saiz, G.Savard, S.Stolze, G.L.Wilson, S.Zhu

Level structure of the Tz = -1 nucleus 34Ar and its relevance for nucleosynthesis in ONe novae

NUCLEAR REACTIONS 12C(24Mg, 2n)34Ar, (24Mg, 2p)34S, E=95 MeV; measured reaction products, Eγ, Iγ, (34Ar)γ- and (34S)γ-coin, γγ-coin, γ(θ) using GRETINA array for detection of high-energy γ rays, and Fragment mass analyzer (FMA) for recoils at ATLAS-ANL facility. 34Ar, 34S; deduced levels, proton-unbound levels of astrophysical significance, J, π, mirror symmetry, 33S/32S and 34S/32S ratios to search for nova presolar grains, and compared with previous experimental data. 34Cl(p, γ), T=0.1-0.8 GK; calculated stellar reaction rate. Comparison of levels structures in 34Ar and 34S with data from the ENSDF database, and with shell-model calculations using USDA Hamiltonian, within the sd shell-model space for even-parity states, and using WBP Hamiltonian, within the sd-pf space for odd-parity levels.

doi: 10.1103/PhysRevC.103.035805
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Data from this article have been entered in the XUNDL database. For more information, click here.


2021LO11      Phys.Rev.Lett. 127, 112701 (2021)

G.Lotay, S.A.Gillespie, M.Williams, T.Rauscher, M.Alcorta, A.M.Amthor, C.A.Andreoiu, D.Baal, G.C.Ball, S.S.Bhattacharjee, H.Behnamian, V.Bildstein, C.Burbadge, W.N.Catford, D.T.Doherty, N.E.Esker, F.H.Garcia, A.B.Garnsworthy, G.Hackman, S.Hallam, K.A.Hudson, S.Jazrawi, E.Kasanda, A.R.L.Kennington, Y.H.Kim, A.Lennarz, R.S.Lubna, C.R.Natzke, N.Nishimura, B.Olaizola, C.Paxman, A.Psaltis, C.E.Svensson, J.Williams, B.Wallis, D.Yates, D.Walter, B.Davids

First Direct Measurement of an Astrophysical p-Process Reaction Cross Section Using a Radioactive Ion Beam

NUCLEAR REACTIONS 1H(83Rb, γ), (84Kr, γ), E=2.4, 2.7 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, partial σ. Comparison with statistical model calculations.

doi: 10.1103/PhysRevLett.127.112701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2660.


2021OT02      Phys.Rev. C 104, 055806 (2021)

S.Ota, G.Christian, W.N.Catford, G.Lotay, M.Pignatari, U.Battino, E.A.Bennett, S.Dede, D.T.Doherty, S.Hallam, F.Herwig, J.Hooker, C.Hunt, H.Jayatissa, A.Matta, M.Moukaddam, E.Rao, G.V.Rogachev, A.Saastamoinen, D.Scriven, J.A.Tostevin, S.Upadhyayula, R.Wilkinson

(6Li, d) and (6Li, t) reactions on 22Ne and implications for s-process nucleosynthesis

NUCLEAR REACTIONS 6Li(22Ne, d)26Mg, 6Li(22Na, t)25Mg, E=154 MeV; 2H(22Ne, p)23Ne, E not given; measured reaction products, E(d), I(d), E(p), I(p), Eγ, Iγ, 26Mg and 25Mg recoils, (26Mg)γ-coin, (25Mg)γ-coin, (particle)(particle)-coin, σ(θ) using TIARA Si detector array of two sets of Si detectors, 'Hyball' and 'Barrel', MDM high-resolution and broad range magnetic spectrometer, and array of four HPGe detectors at the K150 cyclotron of Texas A and M University. 23Ne, 25Mg, 26Mg; deduced levels, J, π, resonances, resonances in the Gamow window of 22Ne(α, n)25Mg reaction, spectroscopic factors, α-spectroscopic factors for 26Mg, resonance strengths, impact of 22Ne+α resonances on s-process nucleosynthesis; comparison of σ(θ) data with DWBA calculations using FRESCO code. Comparison with previous experimental results. 22Ne(α, n), (α, γ); calculated s-process overproduction factors in stars 3 and 5 times the mass of the sun for A=60-210 isotopes.

doi: 10.1103/PhysRevC.104.055806
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020CA03      Phys.Rev. C 101, 024313 (2020)

R.L.Canavan, M.Rudigier, P.H.Regan, M.Lebois, J.N.Wilson, N.Jovancevic, P.-A.Soderstrom, S.M.Collins, D.Thisse, J.Benito, S.Bottoni, M.Brunet, N.Cieplicka-Orynczak, S.Courtin, D.T.Doherty, L.M.Fraile, K.Hadynska-Klek, G.Hafner, M.Heine, L.W.Iskra, V.Karayonchev, A.Kennington, P.Koseoglou, G.Lotay, G.Lorusso, M.Nakhostin, C.R.Nita, S.Oberstedt, Zs.Podolyak, L.Qi, J.-M.Regis, V.Sanchez-Tembleque, R.Shearman, V.Vedia, W.Witt

Half-life measurements in 164, 166Dy using γ-γ fast-timing spectroscopy with the ν-Ball spectrometer

NUCLEAR REACTIONS 164Dy(18O, 18O'), E=71, 76, 80 MeV pulsed beam; 164Dy(18O, 16O)166Dy, E=78 MeV; measured Eγ, Iγ, level half-lives by γγ(t) fast-timing triple coincidence method using ν-Ball with 24 HPGe clover detectors, ten coaxial HPGe detectors, and 20 LaBr3 detectors. 164,166Dy; deduced levels, J, π, B(E2), β2 and transition quadrupole moments. Comparison with values for 164Dy in the ENSDF database at NNDC.

doi: 10.1103/PhysRevC.101.024313
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020CA11      Phys.Rev. C 101, 054314 (2020)

R.J.Carroll, P.M.Walker, G.J.Lane, M.W.Reed, A.Akber, H.M.Albers, J.J.Carroll, D.M.Cullen, A.C.Dai, C.Fahlander, M.S.M.Gerathy, S.S.Hota, G.Lotay, T.Kibedi, V.Margerin, A.J.Mitchell, N.Palalani, T.Palazzo, Z.Patel, R.Shearman, A.E.Stuchbery, F.R.Xu

γ-ray spectroscopy of a four-quasiparticle isomer band in 174Re

NUCLEAR REACTIONS 160Dy(19F, 5n), E=107 MeV pulsed beam from the 14-UD Pelletron at the Australian National University]; measured prompt and delayed Eγ, Iγ, γγ-coin, half-lives of isomers by γ(t) and γγ(t) using the CAESAR HPGe detector array. 174Re; deduced levels, J, π, bands, γ-branching ratios, four-quasiparticle Kπ=(14-) isomer, Nilsson configurations, gK, Weisskopf hindrances and reduced hindrances for transitions from the (14-) isomer and the (8-) bandhead; calculated potential energy surfaces. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.101.054314
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020FR03      Phys.Rev.Lett. 124, 192701 (2020)

G.Fruet, S.Courtin, M.Heine, D.G.Jenkins, P.Adsley, A.Brown, R.Canavan, W.N.Catford, E.Charon, D.Curien, S.Della Negra, J.Duprat, F.Hammache, J.Lesrel, G.Lotay, A.Meyer, D.Montanari, L.Morris, M.Moukaddam, J.Nippert, Zs.Podolyak, P.H.Regan, I.Ribaud, M.Richer, M.Rudigier, R.Shearman, N.de Sereville, C.Stodel

Advances in the Direct Study of Carbon Burning in Massive Stars

NUCLEAR REACTIONS 12C(12C, X), E=2.2-5.4 MeV; measured reaction products, Eγ, Iγ; deduced S-factor. Comparison with available data.

doi: 10.1103/PhysRevLett.124.192701
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2020KE03      Phys.Rev.Lett. 124, 252702 (2020)

A.R.L.Kennington, G.Lotay, D.T.Doherty, D.Seweryniak, C.Andreoiu, K.Auranen, M.P.Carpenter, W.N.Catford, C.M.Deibel, K.Hadynska-Klek, S.Hallam, D.E.M.Hoff, T.Huang, R.V.F.Janssens, S.Jazrawi, J.Jose, F.G.Kondev, T.Lauritsen, J.Li, A.M.Rogers, J.Saiz, G.Savard, S.Stolze, G.L.Wilson, S.Zhu

Search for Nova Presolar Grains: γ-Ray Spectroscopy of 34Ar and its Relevance for the Astrophysical 33Cl(p, γ) Reaction

NUCLEAR REACTIONS 12C(24Mg, X)34Ar, E=95 MeV; measured reaction products, Eγ, Iγ. 34Cl, 34S; deduced γ-ray energies, intensities, J, π, contribution of individual resonances to the stellar reaction rate.

doi: 10.1103/PhysRevLett.124.252702
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020LI28      Phys.Rev. C 102, 024301 (2020)

J.J.Liu, J.Lee, H.Watanabe, S.Nishimura, G.X.Zhang, J.Wu, P.M.Walker, P.H.Regan, P.-A.Soderstrom, H.Kanaoka, Z.Korkulu, P.S.Lee, A.Yagi, A.C.Dai, F.R.Xu, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, R.J.Carroll, K.Y.Chae, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, F.G.Kondev, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, C.S.Lee, E.J.Lee, G.Lorusso, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu

Isomeric and β-decay spectroscopy of 173, 174Ho

RADIOACTIVITY 173,174Ho(β-)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fission fragments using BigRIPS separator and ZeroDegree spectrometer and implantation in WAS3ABi at RIBF-RIKEN facility]; measured Eγ, Iγ, Eβ, conversion electrons, βγ-, (ce)γ- and γγ-coin, half-lives of 173Ho and 174Ho decays from γ-decay curves, half-life of an isomer in 173Ho using double-sided silicon strip detectors (DSSD) and the EURICA γ-ray spectrometer. 174Er; deduced levels, J, π, β feedings, logft, configurations. 173Ho; deduced level, isomer, J, π. 174Ho; deduced J, π and configuration of ground state. 173,174Ho, 173,174Er; calculated levels, J, π, deformation parameters β2, γ and β4, configurations using configuration-constrained potential energy surface (PES) calculations. Systematics of yrast g.s. bands in N=106 isotones: 172Dy, 174Er, 176Yb, 178Hf, 180W, 182Os. Systematics of experimental logft values in decays of 168Ho, 171,173Er, 174,176Tm, 178Lu. Systematics of Weisskopf hindrance factors in odd-A Ho isotopes: 159,161,163,165,167Ho.

doi: 10.1103/PhysRevC.102.024301
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020LO03      Eur.Phys.J. A 56, 3 (2020)

G.Lotay, P.J.Woods, M.Moukaddam, M.Aliotta, G.Christian, B.Davids, T.Davinson, D.T.Doherty, D.Howell, V.Margerin, C.Ruiz

High-resolution radioactive beam study of the 26Al(d, p) reaction and measurements of single-particle spectroscopic factors

NUCLEAR REACTIONS 2H(26Al, p), E=6 MeV/nucleon; measured reaction products, Ep, Ip. 26,27Al; deduced σ(θ), excited states, resonance parameters, spectroscopic factors. Comparison of shell model calculations with inverse kinematic transfer reaction data. The ISAC-II radioactive beams facility at TRIUMF.

doi: 10.1140/epja/s10050-019-00008-8
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020LO11      Phys.Rev. C 102, 035804 (2020)

G.Lotay, D.T.Doherty, D.Seweryniak, M.P.Carpenter, R.V.F.Janssens, J.Jose, A.M.Rogers, P.J.Woods, S.Zhu

Spectroscopy of 30P and the abundance of 29Si in presolar grains

NUCLEAR REACTIONS 28Si(3He, p), E=13 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ)(DCO) using the Gammasphere array of 97 Compton-suppressed HPGe detectors at ATLAS-ANL facility. 30P; deduced levels, resonances, J, π, and compared with evaluated data in the ENSDF database. 29Si(p, γ)30P, E(proton resonance)=2-500 keV; deduced spectroscopic factors, Γp, Γγ, resonance strengths, astrophysical reaction rates from 0.08 to 0.5 GK. Evaluated mean composition of nova ejecta of 28,29,30Si, 31P, 32,33,34S from models of nova explosions and compared with data in STARLIB database.

doi: 10.1103/PhysRevC.102.035804
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2020OT01      Phys.Lett. B 802, 135256 (2020)

S.Ota, G.Christian, G.Lotay, W.N.Catford, E.A.Bennett, S.Dede, D.T.Doherty, S.Hallam, J.Hooker, C.Hunt, H.Jayatissa, A.Matta, M.Moukaddam, G.V.Rogachev, A.Saastamoinen, J.A.Tostevin, S.Upadhyayula, R.Wilkinson

Decay properties of 22Ne + α resonances and their impact on s-process nucleosynthesis

NUCLEAR REACTIONS 6Li(22Ne, d)26Mg, E=154 MeV; measured reaction products; deduced resonance parameters, n/γ branching ratio. Comparison with Monte Carlo calculations.

doi: 10.1016/j.physletb.2020.135256
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2573.


2020RU01      Phys.Lett. B 801, 135140 (2020)

M.Rudigier, P.M.Walker, R.L.Canavan, Zs.Podolyak, P.H.Regan, P.-A.Soderstrom, M.Lebois, J.N.Wilson, N.Jovancevic, A.Blazhev, J.Benito, S.Bottoni, M.Brunet, N.Cieplicka-Orynczak, S.Courtin, D.T.Doherty, L.M.Fraile, K.Hadynska-Klek, M.Heine, L.W.Iskra, J.Jolie, V.Karayonchev, A.Kennington, P.Koseoglou, G.Lotay, G.Lorusso, M.Nakhostin, C.R.Nita, S.Oberstedt, L.Qi, J.-M.Regis, V.Sanchez-Tembleque, R.Shearman, W.Witt, V.Vedia, K.O.Zell

Multi-quasiparticle sub-nanosecond isomers in 178W

NUCLEAR REACTIONS 164Dy(18O, 4n), E71, 76, 80 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, isomeric T1/2. Fast-timing techniques.

doi: 10.1016/j.physletb.2019.135140
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2019AU02      Phys.Lett. B 792, 187 (2019)

K.Auranen, D.Seweryniak, M.Albers, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, C.J.Chiara, P.Copp, H.M.David, D.T.Doherty, J.Harker, C.R.Hoffman, R.V.F.Janssens, T.L.Khoo, S.A.Kuvin, T.Lauritsen, G.Lotay, A.M.Rogers, C.Scholey, J.Sethi, R.Talwar, W.B.Walters, P.J.Woods, S.Zhu

Proton decay of 108I and its significance for the termination of the astrophysical rp-process

RADIOACTIVITY 108I(α), (p), 109I(p), 107,108Te(α) [from 54Fe(58Ni, X)108I/109I/108Te/107Te, E=254 MeV]; measured Eα, Iα, Ep, Ip; deduced Q-values, T1/2, mass excesses, branching ratio. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2019.03.039
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2019GA29      Phys.Rev. C 100, 044309 (2019)

E.R.Gamba, A.M.Bruce, S.Lalkovski, M.Rudigier, S.Bottoni, M.P.Carpenter, S.Zhu, J.T.Anderson, A.D.Ayangeakaa, T.A.Berry, I.Burrows, M.Carmona-Gallardo, R.J.Carroll, P.Copp, D.M.Cullen, T.Daniel, G.Fernandez-Martinez, J.P.Greene, L.A.Gurgi, D.J.Hartley, R.Ilieva, S.Ilieva, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, C.R.Nita, Zs.Podolyak, V.Pucknell, M.Reed, P.H.Regan, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, E.A.Stefanova, V.Vedia, O.Yordanov

Fast-timing measurements in the ground-state band of 114Pd

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, level half-lives by fast-timing γγ(t) technique using Gammasphere array with 51 HPGe detectors, and FATIMA array with 25 LaBr3(Ce) detectors at the Argonne National Laboratory. 114Pd; deduced levels, J, π, half-lives for the first 2+, 4+ and 6+ states, B(E2), transition quadrupole moments, β2. Comparison of experimental B(E2) values with those predicted by the vibrator, rigid axial rotor, Wilets-Jean and Davydov-Filippov models. Systematics of B(E2) values for the first 2+ state in Z=44-48, N=56-74 even-even nuclei.

doi: 10.1103/PhysRevC.100.044309
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2019LO09      Eur.Phys.J. A 55, 109 (2019)

G.Lotay, D.T.Doherty, D.Seweryniak, S.Almaraz-Calderon, M.P.Carpenter, C.J.Chiara, H.M.David, C.R.Hoffman, R.V.F.Janssens, A.Kankainen, T.Lauritsen, R.Wilkinson, P.J.Woods, S.Zhu

Identification of γ-decaying resonant states in 26Mg and their importance for the astrophysical s process

doi: 10.1140/epja/i2019-12791-5
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2019MA29      Phys.Rev. C 99, 044320 (2019)

A.Matta, W.N.Catford, N.A.Orr, J.Henderson, P.Ruotsalainen, G.Hackman, A.B.Garnsworthy, F.Delaunay, R.Wilkinson, G.Lotay, Na.Tsunoda, T.Otsuka, A.J.Knapton, G.C.Ball, N.Bernier, C.Burbadge, A.Chester, D.S.Cross, S.Cruz, C.Aa.Diget, T.Domingo, T.E.Drake, L.J.Evitts, F.H.Garcia, S.Hallam, E.MacConnachie, M.Moukaddam, D.Muecher, E.Padilla-Rodal, O.Paetkau, J.Park, J.L.Pore, U.Rizwan, J.Smallcombe, J.K.Smith, K.Starosta, C.E.Svensson, J.Williams, M.Williams

Shell evolution approaching the N-20 island of inversion: Structure of 29Mg

NUCLEAR REACTIONS 2H(28Mg, p), E=8.0 MeV/nucleon, [secondary 28Mg beam from C(p, X), E=520 MeV primary reaction at the ISAC2 of TRIUMF]; measured Ep, Ip, Eγ, Iγ, (recoil)γ-coin, and differential σ(θ) using SHARC array of double-sided silicon strip detectors, TIGRESS array of HPGe detectors, and TRIFOIL plastic scintillator. 29Mg; deduced levels, J, π, spectroscopic factors. Comparison with shell model calculations. Systematics of intruder states in 25,27,29,31Mg.

NUCLEAR STRUCTURE 29Mg; calculated levels, J, π, neutron occupancies using shell model with EEdf1 interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.99.044320
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2019RU06      Acta Phys.Pol. B50, 661 (2019)

M.Rudigier, R.L.Canavan, P.H.Regan, P.-A.Soderstrom, M.Lebois, J.N.Wilson, N.Jovancevic, S.Bottoni, M.Brunet, N.Cieplicka-Orynczak, S.Courtin, D.T.Doherty, K.Hadynska-Klek, M.Heine, L.W.Iskra, V.Karayonchev, A.Kennington, P.Koseoglou, G.Lotay, G.Lorusso, M.Nakhostin, C.R.Nita, S.Oberstedt, Zs.Podolyak, L.Qi, J.-M.Regis, R.Shearman, P.M.Walker, W.Witt

Isomer Spectroscopy and Sub-nanosecond Half-live Determination in 178W Using the NuBALL Array

NUCLEAR REACTIONS 164Dy(18O, 4n), E=71, 76, 80 MeV; measured reaction products, Eγ, Iγ, γγ-coin; deduced γ-ray energies, J, π, isomeric T1/2, B(E2), intrinsic quadrupole moments. Centroid-shift method. NuBALL array of 24Compton suppressed HPGe Clover detectors, 10 Compton suppressed coaxial HPGe detectors and 20 LaBr3(Ce) scintillators.

doi: 10.5506/aphyspolb.50.661
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2019ZH49      Phys.Lett. B 799, 135036 (2019)

G.X.Zhang, H.Watanabe, G.D.Dracoulis, F.G.Kondev, G.J.Lane, P.H.Regan, P.-A.Soderstrom, P.M.Walker, K.Yoshida, H.Kanaoka, Z.Korkulu, P.S.Lee, J.J.Liu, S.Nishimura, J.Wu, A.Yagi, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, M.P.Carpenter, R.J.Carroll, K.Y.Chae, C.J.Chiara, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, T.Lauritsen, C.S.Lee, E.J.Lee, C.J.Lister, G.Lorusso, G.Lotay, E.A.McCutchan, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, D.Seweryniak, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu, S.Zhu

Interplay of quasiparticle and vibrational excitations: First observation of isomeric states in 168Dy and 169Dy

RADIOACTIVITY 168,169Dy(β-) [from be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, X-rays; deduced level energies, J, π, B(E2), isomer T1/2. Comparison with deformed QRPA and multi-quasiparticle calculations.

doi: 10.1016/j.physletb.2019.135036
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2018AU04      Phys.Rev.Lett. 121, 182501 (2018)

K.Auranen, D.Seweryniak, M.Albers, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, C.J.Chiara, P.Copp, H.M.David, D.T.Doherty, J.Harker, C.R.Hoffman, R.V.F.Janssens, T.L.Khoo, S.A.Kuvin, T.Lauritsen, G.Lotay, A.M.Rogers, J.Sethi, C.Scholey, R.Talwar, W.B.Walters, P.J.Woods, S.Zhu

Superallowed α Decay to Doubly Magic 100Sn

RADIOACTIVITY 108Xe, 104Te(α) [from 54Fe(58Ni, 4n)108Xe, E=245 MeV]; measured decay products, Eα, Iα; deduced α-particles energies, T1/2. A heavy self-conjugate nucleus, comparison with available data.

doi: 10.1103/PhysRevLett.121.182501
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2018CH08      Phys.Rev. C 97, 025802 (2018)

G.Christian, G.Lotay, C.Ruiz, C.Akers, D.S.Burke, W.N.Catford, A.A.Chen, D.Connolly, B.Davids, J.Fallis, U.Hager, D.Hutcheon, A.Mahl, A.Rojas, X.Sun

Direct measurement of astrophysically important resonances in 38K(p, γ) 39Ca

NUCLEAR REACTIONS 1H(38K, γ)39Ca, E=15.58, 20.56, 27.17 MeV, [38K secondary beam produced at ISAC-I, TRIUMF facility by impinging 500 MeV protons on a high-power TiC production target]; measured recoils using DRAGON spectrometer, prompt Eγ, Iγ, (recoil)γ-coin using bismuth-germanate scintillator array for γ detection. Windowless hydrogen gas target; deduced energies of resonances, resonance strengths for the 386-, 515- and 689-keV proton resonances, astrophysical reaction rates for temperature range of 150-500 MK, abundances of 38Ar, 39K, and 40Ca in the hottest oxygen-neon novae.

doi: 10.1103/PhysRevC.97.025802
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2018GA23      Acta Phys.Pol. B49, 555 (2018)

E.R.Gamba, A.M.Bruce, M.Rudigier, S.Lalkovski, S.Bottoni, M.P.Carpenter, S.Zhu, A.D.Ayangeakaa, J.T.Anderson, T.A.Berry, I.Burrows, R.J.Carrol, P.Copp, M.Carmona-Gallardo, D.M.Cullen, T.Daniel, G.Fernandez-Martinez, J.P.Greene, L.A.Gurgi, D.J.Hartley, R.Ilieva, S.Ilieva, R.V.F.Janssens, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, C.R.Nita, Zs.Podolyak, V.Pucknell, M.Reed, P.H.Regan, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, V.Vedia, E.A.Stefanova, O.Yordanov

Fast-timing Measurements in 100Zr Using LaBr3(Ce) Detectors Coupled with Gammasphere

RADIOACTIVITY 252Cf(SF); measured 100Zr fission fragment 4+ state Eγ, Iγ, T1/2, fission partners fragments using Digital Gammasphere (DGS) acquisition with hybrid detector made of 51 HPGe from Gammasphere and 25 LaBr3(Ce) scintillators (part of UK NuSTAR Collaboration); deduced first excited state T1/2, deformation, quadrupole moment, B(E2), LaBr3(Ce) γ-γ matrix, DGS γ-γ matrix, centroid difference between delayed and anti-delayed time distributions. Results preliminary, the main aim was the feasibility study.

doi: 10.5506/aphyspolb.49.555
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2017GU08      Acta Phys.Pol. B48, 601 (2017)

L.A.Gurgi, P.H.Regan, P.-A.Soderstrom, H.Watanabe, P.M.Walker, Zs.Podolyak, S.Nishimura, T.A.Berry, P.Doornenbal, G.Lorusso, T.Isobe, H.Baba, Z.Y.Xu, H.Sakurai, T.Sumikama, W.N.Catford, A.M.Bruce, F.Browne, G.J.Lane, F.G.Kondev, A.Odahara, J.Wu, H.L.Liu, F.R.Xu, Z.Korkulu, P.Lee, J.J.Liu, V.H.Phong, A.Yagi, G.X.Zhang, T.Alharbi, R.J.Carroll, K.Y.Chae, Zs.Dombradi, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, H.Kanaoka, I.Kojouharov, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, E.J.Lee, C.S.Lee, G.Lotay, C.B.Moon, I.Nishizuka, C.R.Nita, Z.Patel, O.J.Roberts, H.Schaffner, C.M.Shand, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, S.Kanaya, J.J.Valiente-Dobon

Isomer Spectroscopy of Neutron-rich 165, 167Tb

NUCLEAR REACTIONS 9Be(238U, f), E=345 MeV/nucleon; measured fission products β-delayed discrete Eγ, Iγ, X-rays, γγ-coin, Xγ-coin using HPGe. 165,167Tb; deduced neutron-rich deformed nuclei γ-ray spectra, levels, J, π, isomeric states interpreted as hindered E1 decay from single quasi-proton Nilsson configuration to rotational states built on single quasi-proton gs, levels populated in isomeric decays.

doi: 10.5506/APhysPolB.48.601
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2017GU24      Radiat.Phys.Chem. 140, 493 (2017)

L.A.Gurgi, P.H.Regan, P.-A.Soderstrom, H.Watanabe, P.M.Walker, Zs.Podolyak, S.Nishimura, T.A.Berry, P.Doornenbal, G.Lorusso, T.Isobe, H.Baba, Z.Y.Xu, H.Sakurai, T.Sumikama, W.N.Catford, A.M.Bruce, F.Browne, G.J.Lane, F.G.Kondev, A.Odahara, J.Wu, H.L.Liu, F.R.Xu, Z.Korkulu, P.Lee, J.J.Liu, V.H.Phong, A.Yag, G.X.Zhang, T.Alharbi, R.J.Carroll, K.Y.Chae, Zs.Dombradi, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, H.Kanaoka, I.Kojouharov, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, E.J.Lee, C.S.Lee, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, Z.Patel, O.J.Roberts, H.Schaffner, C.M.Shand, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, S.Yoshida, J.J.Valiente-Dobon

Isomer spectroscopy of neutron-rich 168Tb103

NUCLEAR REACTIONS 9Be(238U, X)168Tb, E=350 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, isomeric state T1/2. Comparison with blocked BCS pairing Nilsson calculations for a well-deformed prolate shape, available data.

doi: 10.1016/j.radphyschem.2016.12.011
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2017KA25      Phys.Lett. B 769, 549 (2017)

A.Kankainen, P.J.Woods, H.Schatz, T.Poxon-Pearson, D.T.Doherty, V.Bader, T.Baugher, D.Bazin, B.A.Brown, J.Browne, A.Estrade, A.Gade, J.Jose, A.Kontos, C.Langer, G.Lotay, Z.Meisel, F.Montes, S.Noji, F.Nunes, G.Perdikakis, J.Pereira, F.Recchia, T.Redpath, R.Stroberg, M.Scott, D.Seweryniak, J.Stevens, D.Weisshaar, K.Wimmer, R.Zegers

Measurement of key resonance states for the 30P(p, γ)31S reaction rate, and the production of intermediate-mass elements in nova explosions

NUCLEAR REACTIONS 2H(30P, n)31S, E=30 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies and relative intensities, σ, negative-parity states, spectroscopic factors, resonance parameters, astrophysical reaction rates. The GRETINA (Gamma-Ray Energy Tracking In-beam Nuclear Array), the National Superconducting Cyclotron Laboratory, Michigan State University.

doi: 10.1016/j.physletb.2017.01.084
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2017RU02      Acta Phys.Pol. B48, 351 (2017)

M.Rudigier, S.Lalkovski, E.R.Gamba, A.M.Bruce, Zs.Podolyak, P.H.Regan, M.Carpenter, S.Zhu, A.D.Ayangeakaa, J.T.Anderson, T.Berry, S.Bottoni, I.Burrows, R.Carroll, P.Copp, D.Cullen, T.Daniel, L.Fraile, M.Carmona-Gallardo, A.Grant, J.P.Greene, L.A.Guegi, D.Hartley, R.Ilieva, S.Ilieva, R.V.F.Janssens, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, G.Fernandez-Martinez, V.Pucknell, M.Reed, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, E.Stefanova, V.Vedia, O.Yordanov

Fast Timing Measurement Using an LaBr3(Ce) Scintillator Detector Array Coupled with Gammasphere

doi: 10.5506/APhysPolB.48.351
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2017WI14      Phys.Rev.Lett. 119, 242701 (2017)

R.Wilkinson, G.Lotay, A.Lennarz, C.Ruiz, G.Christian, C.Akers, W.N.Catford, A.A.Chen, D.Connolly, B.Davids, D.A.Hutcheon, D.Jedrejcic, A.M.Laird, L.Martin, E.McNeice, J.Riley, M.Williams

Direct Measurement of the Key Ec.m. = 456 keV Resonance in the Astrophysical 19Ne(p, γ)20Na Reaction and Its Relevance for Explosive Binary Systems

NUCLEAR REACTIONS H(19Ne, γ), E=9.24 MeV; measured reaction products, Eγ, Iγ, Eβ, Iβ. 19Ne, 20Na; deduced resonance parameters, reaction rates. Comparison with available data.

doi: 10.1103/PhysRevLett.119.242701
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2017WU04      Phys.Rev.Lett. 118, 072701 (2017)

J.Wu, S.Nishimura, G.Lorusso, P.Moller, E.Ideguchi, P.-H.Regan, G.S.Simpson, P.-A.Soderstrom, P.M.Walker, H.Watanabe, Z.Y.Xu, H.Baba, F.Browne, R.Daido, P.Doornenbal, Y.F.Fang, G.Gey, T.Isobe, P.S.Lee, J.J.Liu, Z.Li, Z.Korkulu, Z.Patel, V.Phong, S.Rice, H.Sakurai, L.Sinclair, T.Sumikama, M.Tanaka, A.Yagi, Y.L.Ye, R.Yokoyama, G.X.Zhang, T.Alharbi, N.Aoi, F.L.Bello Garrote, G.Benzoni, A.M.Bruce, R.J.Carroll, K.Y.Chae, Z.Dombradi, A.Estrade, A.Gottardo, C.J.Griffin, H.Kanaoka, I.Kojouharov, F.G.Kondev, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, E.J.Lee, T.Lokotko, G.Lotay, C.-B.Moon, H.Nishibata, I.Nishizuka, C.R.Nita, A.Odahara, Zs.Podolyak, O.J.Roberts, H.Schaffner, C.Shand, J.Taprogge, S.Terashima, Z.Vajta, S.Yoshida

94 β-Decay Half-Lives of Neutron-Rich 55Cs to 67Ho: Experimental Feedback and Evaluation of the r-Process Rare-Earth Peak Formation

RADIOACTIVITY 144,145,146,147,148,149,150,151Cs, 146,147,148,149,150,151,152,153,154Ba, 148,149,150,151,152,153,154,155,156La, 150,151,152,153,154,155,156,157,158Ce, 153,154,155,156,157,158,159,160Pr, 156,157,158,159,160,161,162Nd, 159,160,161,162,163Pm, 160,161,162,163,164,165,166Sm, 161,162,163,164,165,166,167,168Eu, 165,166,167,168,169,170Gd, 166,167,168,169,170,171,172Tb, 169,170,171,172,172m,173Dy, 172,173,174,175Ho, 174mEr(β-)[from Be(238U, X), E=345 MeV/nucleon]; measured and analyzed reaction products using BigRIPS separator and ZeroDegree Spectrometer (ZDS), γ rays, half-lives by (implant)β correlations using WAS3ABi and EURICA detection systems at RIBF-RIKEN facility; deduced Gamow-Teller strength functions, r-process abundance pattern in the solar system. Comparison with previous experimental half-lives, and with three theoretical calculations using FRDM+QRPA, KTUY+GT2, and RHB+pn-RQRPA models. Numerical values of half-lives listed in supplementary file.

doi: 10.1103/PhysRevLett.118.072701
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2016DE29      Phys.Rev. C 94, 054311 (2016)

D.M.Debenham, M.A.Bentley, P.J.Davies, T.Haylett, D.G.Jenkins, P.Joshi, L.F.Sinclair, R.Wadsworth, P.Ruotsalainen, J.Henderson, K.Kaneko, K.Auranen, H.Badran, T.Grahn, P.Greenlees, A.Herzaan, U.Jakobsson, J.Konki, R.Julin, S.Juutinen, M.Leino, J.Sorri, J.Pakarinen, P.Papadakis, P.Peura, J.Partanen, P.Rahkila, M.Sandzelius, J.Saren, C.Scholey, S.Stolze, J.Uusitalo, H.M.David, G.de Angelis, W.Korten, G.Lotay, M.Mallaburn, E.Sahin

Spectroscopy of 70Kr and isospin symmetry in the T=1 fpg shell nuclei

NUCLEAR REACTIONS 40Ca(32S, 2n), E=88 MeV; measured Eγ, (recoil)βγ-correlated events, half-life of 70Kr decay using JUROGAM II array at K130 cyclotron facility in Jyvaskyla. Recoil-β tagging method. 70Kr; deduced levels, J, π, triplet energy differences (TED) and mirror energy differences (MED). Comparison with shell model calculations. Systematics of TED and MED in even A=66, 70, 74 and 78 fpg shell nuclei.

doi: 10.1103/PhysRevC.94.054311
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2016KA05      Eur.Phys.J. A 52, 6 (2016)

A.Kankainen, P.J.Woods, F.Nunes, C.Langer, H.Schatz, V.Bader, T.Baugher, D.Bazin, B.A.Brown, J.Browne, D.T.Doherty, A.Estrade, A.Gade, A.Kontos, G.Lotay, Z.Meisel, F.Montes, S.Noji, G.Perdikakis, J.Pereira, F.Recchia, T.Redpath, R.Stroberg, M.Scott, D.Seweryniak, J.Stevens, D.Weisshaar, K.Wimmer, R.Zegers

Angle-integrated measurements of the 26Al (d, n) 27Si reaction cross section: a probe of spectroscopic factors and astrophysical resonance strengths

NUCLEAR REACTIONS 2H(26Al, n), E=30 MeV/nucleon; measured 511 keV γ-ray using GRETINA (Gamma-Ray Energy Tracking In-beam Nuclear Array), Si recoils, (Si)γ-coin; deduced Doppler-reconstructed γ-ray spectrum in coincidence with Si, σ, resonances, spectroscopic factors to discrete states; calculated σ using shell model.

doi: 10.1140/epja/i2016-16006-5
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2016LO03      Phys.Rev.Lett. 116, 132701 (2016)

G.Lotay, G.Christian, C.Ruiz, C.Akers, D.S.Burke, W.N.Catford, A.A.Chen, D.Connolly, B.Davids, J.Fallis, U.Hager, D.A.Hutcheon, A.Mahl, A.Rojas, X.Sun

Direct Measurement of the Astrophysical 38K(p, γ)39Ca Reaction and Its Influence on the Production of Nuclides toward the End Point of Nova Nucleosynthesis

NUCLEAR REACTIONS 1H(38K, γ), E=386, 515, 689 keV; measured reaction products, Eγ, Iγ; deduced yields, resonance parameters, astrophysical reaction rates. Comparison with available data.

doi: 10.1103/PhysRevLett.116.132701
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2016MC09      Phys.Rev. C 94, 065806 (2016)

E.McCleskey, A.Banu, M.McCleskey, T.Davinson, D.T.Doherty, G.Lotay, B.T.Roeder, A.Saastamoinen, A.Spiridon, L.Trache, J.P.Wallace, P.J.Woods, R.E.Tribble

Simultaneous measurement of β delayed proton and γ decay of 27P

RADIOACTIVITY 27P(β+), (EC), (β+p)[from 1H(28Si, X), E=40 MeV/nucleon]; measured reaction products of 27P, 25Si and 24Al, Eγ, Iγ, Ep, Ip, βp-, βγ-, and pβγ-coin using Momentum Achromat Recoil Spectrometer (MARS) at Texas A and M cyclotron facility. 27Si; deduced levels, J, π, IAS, β++ϵ feedings, logft. 26Al; deduced levels.

doi: 10.1103/PhysRevC.94.065806
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2016SO13      Phys.Lett. B 762, 404 (2016)

P.-A.Soderstrom, P.M.Walker, J.Wu, H.L.Liu, P.H.Regan, H.Watanabe, P.Doornenbal, Z.Korkulu, P.Lee, J.J.Liu, G.Lorusso, S.Nishimura, V.H.Phong, T.Sumikama, F.R.Xu, A.Yagi, G.X.Zhang, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, R.J.Carroll, K.Y.Chae, Zs.Dombradi, A.Estrade, N.Fukuda, C.J.Griffin, E.Ideguchi, N.Inabe, T.Isobe, H.Kanaoka, S.Kanaya, I.Kojouharov, F.G.Kondev, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, E.J.Lee, C.S.Lee, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, C.M.Shand, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu

K-mixing in the doubly mid-shell nuclide 170Dy and the role of vibrational degeneracy

RADIOACTIVITY 170Tb(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, yrast band, J, π, parent nucleus and daughter nucleus isomeric state T1/2. Comparison with available data.

doi: 10.1016/j.physletb.2016.09.058
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2016WA19      Phys.Lett. B 760, 641 (2016)

H.Watanabe, G.X.Zhang, K.Yoshida, P.M.Walker, J.J.Liu, J.Wu, P.H.Regan, P.-A.Soderstrom, H.Kanaoka, Z.Korkulu, P.S.Lee, S.Nishimura, A.Yagi, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, R.J.Carroll, K.Y.Chae, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, F.G.Kondev, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, C.S.Lee, E.J.Lee, G.Lorusso, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu

Long-lived K isomer and enhanced γ vibration in the neutron-rich nucleus 172Dy: Collectivity beyond double midshell

RADIOACTIVITY 172Dy(β-), (IT); measured decay products, Eγ, Iγ; deduced energy levels, J, π, T1/2, B(E2). Comparison with the deformed Quasiparticle Random-Phase Approximation based on a Skyrme energy-density functional.

doi: 10.1016/j.physletb.2016.07.057
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2015DO10      Phys.Scr. T166, 014007 (2015)

D.T.Doherty, P.J.Woods, Y.A.Litvinov, M.A.Najafi, S.Bagchi, S.Bishop, M.Bo, C.Brandau, T.Davinson, I.Dillmann, A.Estrade, P.Egelhof, A.Evdokimov, A.Gumberidze, M.Heil, C.Lederer, S.A.Litvinov, G.Lotay, N.Kalantar-Nayestanaki, O.Kiselev, C.Kozhuharov, T.Kroll, M.Mahjour-Shafiei, M.Mutterer, F.Nolden, N.Petridis, U.Popp, R.Reifarth, C.Rigollet, S.Roy, M.Steck, T.Stohlker, B.Streicher, S.Trotsenko, M.v.Schmid, X.L.Yan, J.C.Zamora

Nuclear transfer reaction measurements at the ESR-for the investigation of the astrophysical 15O(α, γ)19Ne reaction

NUCLEAR REACTIONS 1H(20Ne, d), E=50 MeV/nucleon; measured reaction products; deduced energy levels, J, π. Comparison with available data.

doi: 10.1088/0031-8949/2015/T166/014007
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2015MA44      Phys.Rev.Lett. 115, 062701 (2015)

V.Margerin, G.Lotay, P.J.Woods, M.Aliotta, G.Christian, B.Davids, T.Davinson, D.T.Doherty, J.Fallis, D.Howell, O.S.Kirsebom, D.J.Mountford, A.Rojas, C.Ruiz, J.A.Tostevin

Inverse Kinematic Study of the 26gAl(d, p)27Al Reaction and Implications for Destruction of 26Al in Wolf-Rayet and Asymptotic Giant Branch Stars

NUCLEAR REACTIONS 2H(26Al, p), E<500 MeV; measured reaction products; deduced energy levels, J, π. spectroscopic factor, astrophysical reaction rates. Comparison with available data.

doi: 10.1103/PhysRevLett.115.062701
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2015ME07      Phys.Rev. C 92, 035803 (2015)

B.Mei, T.Aumann, S.Bishop, K.Blaum, K.Boretzky, F.Bosch, C.Brandau, H.Brauning, T.Davinson, I.Dillmann, C.Dimopoulou, O.Ershova, Z.Fulop, H.Geissel, J.Glorius, G.Gyurky, M.Heil, F.Kappeler, A.Kelic-Heil, C.Kozhuharov, C.Langer, T.Le Bleis, Y.Litvinov, G.Lotay, J.Marganiec, G.Munzenberg, F.Nolden, N.Petridis, R.Plag, U.Popp, G.Rastrepina, R.Reifarth, B.Riese, C.Rigollet, C.Scheidenberger, H.Simon, K.Sonnabend, M.Steck, T.Stohlker, T.Szucs, K.Summerer, G.Weber, H.Weick, D.Winters, N.Winters, P.Woods, Q.Zhong

First measurement of the 96Ru(p, γ)97Rh cross section for the p process with a storage ring

NUCLEAR REACTIONS 1H(96Ru, γ)97Rh, E=9, 10, 11 MeV/nucleon; measured particle spectra in different charge states, x-ray and γ spectra, σ(E) using stored heavy ions in storage ring ESR at GSI; deduced astrophysical S factors and stellar reaction rates over a range of T9=0.5-19. Comparison with predictions from standard NON-SMOKER code and TALYS-1.4 code using different γ-ray strength functions from HFB, Brink-Axel Lorentzian (BAL), and Kopecky-Uhl, and different density models of constant temperature (CT), BSFG, generalized superfluid (GS), and Hartree-Fock-Bogolyubov (HFB). Recommended REACLIB parameters for the reactivity of 96Ru(p, γ)97Rh, and 97Rh(γ, p)96Ru reactions. Relevance to p-process network calculations.

doi: 10.1103/PhysRevC.92.035803
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2015SH13      Acta Phys.Pol. B46, 619 (2015)

C.M.Shand, E.Wilson, Zs.Podolyak, H.Grawe, B.A.Brown, B.Fornal, R.V.F.Janssens, M.Bowry, M.Bunce, M.P.Carpenter, R.J.Carroll, C.J.Chiara, N.Cieplicka-Orynczak, A.Y.Deo, G.D.Dracoulis, C.R.Hoffman, R.S.Kempley, F.G.Kondev, G.J.Lane, T.Lauritsen, G.Lotay, M.W.Reed, P.H.Regan, C.Rodriguez Triguero, D.Seweryniak, B.Szpak, P.M.Walker, S.Zhu

Structure of 207Pb Populated in 208Pb + 208Pb Deep-inelastic Collisions

NUCLEAR REACTIONS 208Pb(208Pb, X)207Pb, E=1446 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, angular distributions of transitions, multipolarities, J, π. Comparison with shell model calculations.

doi: 10.5506/APhysPolB.46.619
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2015WI05      Phys.Lett. B 747, 88 (2015)

E.Wilson, Zs.Podolyak, H.Grawe, B.A.Brown, C.J.Chiara, S.Zhu, B.Fornal, R.V.F.Janssens, C.M.Shand, M.Bowry, M.Bunce, M.P.Carpenter, N.Cieplicka-Orynczak, A.Y.Deo, G.D.Dracoulis, C.R.Hoffman, R.S.Kempley, F.G.Kondev, G.J.Lane, T.Lauritsen, G.Lotay, M.W.Reed, P.H.Regan, C.Rodriguez Triguero, D.Seweryniak, B.Szpak, P.M.Walker

Core excitations across the neutron shell gap in 207Tl

NUCLEAR REACTIONS 208Pb(208Pb, X)207Tl, E=1446 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π. Comparison with shell-model calculations.

doi: 10.1016/j.physletb.2015.04.055
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2014DO04      Phys.Rev. C 89, 045804 (2014)

D.T.Doherty, P.J.Woods, G.Lotay, D.Seweryniak, M.P.Carpenter, C.J.Chiara, H.M.David, R.V.F.Janssens, L.Trache, S.Zhu

Level structure of 31S: From low excitation energies to the region of interest for hydrogen burning in novae through the 30(p, γ)31S reaction

NUCLEAR REACTIONS 28Si(α, n), E=22 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using Gammasphere array at ATLAS-ANL facility. 31S; deduced levels, J, π, comparison with level structure in mirror nucleus 31P, mirror energy differences. Comparison with shell model calculations. Relevance for the 30P(p, γ)31S reaction in ONe novae environments.

doi: 10.1103/PhysRevC.89.045804
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2014MA15      Phys.Lett. B 731, 358 (2014)

V.Margerin, A.St.J.Murphy, T.Davinson, R.Dressler, J.Fallis, A.Kankainen, A.M.Laird, G.Lotay, D.J.Mountford, C.D.Murphy, C.Seiffert, D.Schumann, T.Stowasser, T.Stora, C.H.-T.Wang, P.J.Woods

Study of the 44Ti(α, p)47V reaction and implications for core collapse supernovae

NUCLEAR REACTIONS 4He(44Ti, p), E=2.1 MeV/nucleon; measured reaction products, Ep, Ip; deduced σ. Comparison with NON-SMOKER calculations, available data.

doi: 10.1016/j.physletb.2014.03.003
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2013DA16      Phys.Lett. B 726, 665 (2013)

H.M.David, P.J.Woods, G.Lotay, D.Seweryniak, M.Albers, M.Alcorta, M.P.Carpenter, C.J.Chiara, T.Davinson, D.T.Doherty, C.R.Hoffman, R.V.F.Janssens, T.Lauritsen, A.M.Rogers, S.Zhu

Low-lying T = O states in the odd-odd N = Z nucleus 62Ga

NUCLEAR REACTIONS 24Mg(40Ca, np)62Ga, E=103 MeV; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced low-lying level energies, J, π. Comparison with shell model and IBM-4 calculations.

doi: 10.1016/j.physletb.2013.09.054
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2013RU13      Phys.Rev. C 88, 041308 (2013)

P.Ruotsalainen, D.G.Jenkins, M.A.Bentley, R.Wadsworth, C.Scholey, K.Auranen, P.J.Davies, T.Grahn, P.T.Greenlees, J.Henderson, A.Herzan, U.Jakobsson, P.Joshi, R.Julin, S.Juutinen, J.Konki, M.Leino, G.Lotay, A.J.Nichols, A.Obertelli, J.Pakarinen, J.Partanen, P.Peura, P.Rahkila, M.Sandzelius, J.Saren, J.Sorri, S.Stolze, J.Uusitalo

Spectroscopy of proton-rich 66Se up to Jπ Isospin-breaking effect in the A=66 isobaric triplet

NUCLEAR REACTIONS Ca(28Si, X), E=75 MeV; measured Eγ, Iγ, Eβ, evaporation residue spectra, βγ-, (recoil)βγ-coin, βγ(t), delayed γ using RITU separator, JUROGAMII array for γ rays and GREAT spectrometer at JYFL facility. Recoil-decay tagging method. 66Se; deduced levels, J, π; analyzed triplet energy differences (TED) and mirror energy differences (MED) for analog states in A=66 nuclei, and compared with those for A=42, 46, 50, 54 nuclei, and with shell-model predictions. 65Ge, 65Ga, 66As; observed γ rays from competing channels.

doi: 10.1103/PhysRevC.88.041308
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2012AS04      Phys.Lett. B 712, 198 (2012)

M.Assie, F.de Oliveira Santos, T.Davinson, F.de Grancey, L.Achouri, J.Alcantara-Nunez, T.Al Kalanee, J.-C.Angelique, C.Borcea, R.Borcea, L.Caceres, I.Celikovic, V.Chudoba, D.Y.Pang, C.Ducoin, M.Fallot, O.Kamalou, J.Kiener, Y.Lam, A.Lefebvre-Schuhl, G.Lotay, J.Mrazek, L.Perrot, A.M.Sanchez-Benitez, F.Rotaru, M.-G.Saint-Laurent, Yu.Sobolev, N.Smirnova, M.Stanoiu, I.Stefan, K.Subotic, P.Ujic, R.Wolski, P.J.Woods

Spectroscopy of 18Na: Bridging the two-proton radioactivity of 19Mg

RADIOACTIVITY 19Mg(2p), 18Na(p) [from H(17Ne, p)17Ne, E=4 MeV/nucleon]; measured decay products, Ep, Ip. 17Ne; deduced level energies, J, π. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2012.04.059
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2012DO07      Phys.Rev.Lett. 108, 262502 (2012)

D.T.Doherty, G.Lotay, P.J.Woods, D.Seweryniak, M.P.Carpenter, C.J.Chiara, H.M.David, R.V.F.Janssens, L.Trache, S.Zhu

Key Resonances in the 30P(p, γ)31S Gateway Reaction for the Production of Heavy Elements in ONe Novae

NUCLEAR REACTIONS 28Si(α, n)31S, E=22 MeV; measured reaction products, Eγ, Iγ, γ-γ- and γ-γ-γ-coin.; deduced energy of excited states, resonances, J, π, reaction rate uncertainties. Astrophysical implications, comparison with available data.

doi: 10.1103/PhysRevLett.108.262502
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2012LO14      Phys.Rev. C 86, 042801 (2012), Pub.Note Phys.Rev. C 85, 049906 (2012)

G.Lotay, J.P.Wallace, P.J.Woods, D.Seweryniak, M.P.Carpenter, C.J.Chiara, D.T.Doherty, R.V.F.Janssens, T.Lauritsen, A.M.Rogers, S.Zhu

Level structure of 30S: Implications for the astrophysical 29P(p, γ)30S reaction rate in ONe novae and x-ray bursts

NUCLEAR REACTIONS 28Si(3He, n), E=13 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), DCO using Gammasphere array at ATLAS facility in ANL. 30S; deduced levels, J, π, 29P(p, γ)30S reaction rates, resonant states. 30S, 30Si; discussed mirror assignments of levels, J and π. Relevance to ONe novae and x-ray bursts. Comparison with previous studies.

doi: 10.1103/PhysRevC.86.042801
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2012SA22      Phys.Rev.Lett. 108, 242701 (2012)

P.J.C.Salter, M.Aliotta, T.Davinson, H.Al Falou, A.Chen, B.Davids, B.R.Fulton, N.Galinski, D.Howell, G.Lotay, P.Machule, A.StJ.Murphy, C.Ruiz, S.Sjue, M.Taggart, P.Walden, P.J.Woods

Measurement of the 18Ne(α, p0)21Na Reaction Cross Section in the Burning Energy Region for X-Ray Bursts

NUCLEAR REACTIONS 18Ne(α, p), E(cm)=1.2-2.6 MeV; measured reaction products, Eα, Iα; deduced σ, astrophysical reaction rates. HCNO-breakout routes into the rp process implications, comparison with Hauser-Feshbach calculations.

doi: 10.1103/PhysRevLett.108.242701
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2012TR08      J.Phys.:Conf.Ser. 337, 012058 (2012)

L.Trache, A.Banu, J.C.Hardy, V.E.Iacob, M.McCleskey, B.T.Roeder, E.Simmons, A.Spiridon, R.E.Tribble, A.Saastamoinen, A.Jokinen, J.Aysto, T.Davinson, G.Lotay, P.J.Woods, E.Pollacco

Decay spectroscopy for nuclear astrophysics: β- and β-delayed proton decay

RADIOACTIVITY 23Al, 27P, 31Cl(EC), (β+p) [from 1H(24Mg, X), E=48 MeV/nucleon; 1H(28Si, X), (32S, X), E=40 MeV/nucleon]; measured β-delayed Ep, Ip using DSSSD (double-sided strip Si detector), Iβ using Si detector, pβ-coin, Eγ, Iγ using HPGe, βγ-coin. 23Al deduced mass excess, partial decay scheme, levels, J, π, resonance strength, proton branching, isomeric decay, T1/2, IAS, log ft. Only the 23Al results presented.

doi: 10.1088/1742-6596/337/1/012058
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2012WA15      Phys.Lett. B 712, 59 (2012)

J.P.Wallace, P.J.Woods, G.Lotay, A.Alharbi, A.Banu, H.M.David, T.Davinson, M.McCleskey, B.T.Roeder, E.Simmons, A.Spiridon, L.Trache, R.E.Tribble

β-Delayed proton-decay study of 20Mg and its implications for the 19Ne(p, γ)20Na breakout reaction in X-ray bursts

RADIOACTIVITY 20Mg(β+p) [from 3He(20Ne, 3n)20Mg, E=25 MeV/nucleon]; measured decay products, Eβ, Iβ, Ep, Ip. 19Ne; deduced proton energy spectrum, resonant states, resonance strengths.

doi: 10.1016/j.physletb.2012.04.046
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2011AS07      Int.J.Mod.Phys. E20, 971 (2011)

M.Assie, F.De Oliveira Santos, F.De Grancey, L.Achouri, J.Alcantara-Nunez, J.-C.Angelique, C.Borcea, L.Caceres, I.Celikovic, V.Chudoba, D.Y.Pang, T.Davinson, C.Ducoin, M.Fallot, J.Kiener, A.Lefebvre-Schuhl, G.L.Lotay, J.Mrazek, L.Perrot, A.M.Sanchez-Benitez, F.Rotaru, M.-G.Saint-laurent, Yu.Sobolev, M.Stanoiu, R.Stanoiu, I.Stefan, K.Subotic, P.J.Woods, P.Ujic, R.Wolski

Spectroscopy of the unbound nucleus 18Na

NUCLEAR REACTIONS 1H(17Ne, 17Ne), 1H(17Ne, X)18Na, E=4 MeV/nucleon; measured reaction products, proton spectrum; deduced σ(θ), excited state width.

ATOMIC MASSES 18Na; measured TOF; deduced mass excess. Comparison with all available data.

doi: 10.1142/S0218301311019088
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2011LO21      Phys.Rev. C 84, 035802 (2011); Pub Note Phys.Rev. C 84, 039901 (2011)

G.Lotay, P.J.Woods, D.Seweryniak, M.P.Carpenter, H.M.David, R.V.F.Janssens, S.Zhu

Identification of analog states in the T = 1/2 A = 27 mirror system from low excitation energies to the region of hydrogen burning in the 26Alg, m(p, γ)27Si reactions

NUCLEAR REACTIONS 12C(16O, p), E=26 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), level half-lives by DSA method using Gammasphere array. 27Al; deduced levels, J, π, multipolarities, mirror energy differences. Comparison with shell-model calculations, and with level structure of 27Si mirror nucleus. Relevance to 26Al(p, γ)27Si and 26mAl(p, γ)27Si reactions for galactic abundance of the cosmic 26gAl, and for the excess abundance of 26Mg in presolar grains.

doi: 10.1103/PhysRevC.84.035802
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2010ZH54      J.Phys.:Conf.Ser. 202, 012011 (2010)

Q.Zhong, T.Aumann, S.Bishop, K.Blaum, K.Boretzky, F.Bosch, H.Brauning, C.Brandau, T.Davinson, I.Dillmann, O.Ershova, H.Geissel, G.Gyurky, M.Heil, F.Kappeler, A.Kelic, C.Kozhuharov, C.Langer, T.Le Bleis, Y.A.Litvinov, G.Lotay, J.Marganiec, N.Petridis, R.Plag, U.Popp, R.Reifarth, B.Riese, C.Rigollet, C.Scheidenberger, H.Simon, T.Stohlker, T.Szucs, G.Weber, H.Weick, D.F.A.Winters, N.Winters, P.J.Woods

96Ru(p, γ)97Rh measurement at the GSI storage ring

NUCLEAR REACTIONS 1H(96Ru, γ), (96Ru, α), (96Ru, n), E=9, 10, 11 MeV/nucleon; measured Rh ions using DSSSD (double sided Si strip detector) mounted in a pocket inside ESR; deduced σ upper limit at 11 MeV/nucleon; calculatedσ using NON-SMOKER. Analysis continues.

doi: 10.1088/1742-6596/202/1/012011
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2009LO01      Phys.Rev.Lett. 102, 162502 (2009)

G.Lotay, P.J.Woods, D.Seweryniak, M.P.Carpenter, R.V.F.Janssens, S.Zhu

Identification of Key Astrophysical Resonances Relevant for the 26gAl(p, γ)27Si Reaction in Wolf-Rayet Stars, AGB stars, and Classical Novae

NUCLEAR REACTIONS 12C(16O, X)27Si, E=26 MeV; measured Eγ, Iγ, γγ-coin. 27Si; deduced resonance energies. 26Al(p, γ); calculated reaction rates at astrophysical energies.

doi: 10.1103/PhysRevLett.102.162502
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2009LO05      Phys.Rev. C 80, 055802 (2009), Erratum Phys.Rev. C 81, 029903 (2010)

G.Lotay, P.J.Woods, D.Seweryniak, M.P.Carpenter, R.V.F.Janssens, S.Zhu

γ-ray spectroscopy study of states in 27Si relevant for the 26Alm(p, γ)27Si reaction in novae and supernovae

NUCLEAR REACTIONS 12C(16O, n), E=26 MeV; measured Eγ, γγ-coin, γ(θ), and half-lives by DSA using Gammasphere array. 27Si; deduced levels, J, π, and proton resonances. 26mAl(p, γ)27Si; deduced stellar reaction rates.

doi: 10.1103/PhysRevC.80.055802
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2009SE06      Acta Phys.Pol. B40, 621 (2009)

D.Seweryniak, M.P.Carpenter, S.Gros, A.A.Hecht, N.Hoteling, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, C.J.Lister, G.Lotay, D.Peterson, A.P.Robinson, W.B.Walters, X.Wang, P.J.Woods, S.Zhu

New Results Near 100Sn: Observation of Single-Neutron States in 101Sn

NUCLEAR REACTIONS 58Ni(46Ti, 3n), E=192 MeV; measured Eγ, Iγ, β-delayed Ep, Ip. Comparison with shell model calculations.


2008LO04      Phys.Rev. C 77, 042802 (2008)

G.Lotay, P.J.Woods, D.Seweryniak, M.P.Carpenter, N.Hoteling, R.V.F.Janssens, D.G.Jenkins, T.Lauritsen, C.J.Lister, A.Robinson, S.Zhu

First in-beam γ-ray spectroscopy study of 24Al and its implications for the astrophysical 23Mg(p, γ)24Al reaction rate in ONe novae

NUCLEAR REACTIONS 10B(16O, 2nγ), E=60 MeV; measured Eγ, Iγ, γγ-coin. 24Al; deduced levels, J, π, polarization coefficients. 23Mg(p, γ); deduced effect of results on stellar reaction rate. Fragment mass analyzer and Gammasphere array.

doi: 10.1103/PhysRevC.77.042802
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2008PA27      Phys.Rev. C 78, 024301 (2008)

N.S.Pattabiraman, D.G.Jenkins, M.A.Bentley, R.Wadsworth, C.J.Lister, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, D.Seweryniak, S.Zhu, G.Lotay, P.J.Woods, Krishichayan, P.Van Isacker

Analog E1 transitions and isospin mixing

NUCLEAR REACTIONS 16O(16O, n), (16O, p), E=29 MeV; measured Eγ, Iγ, half-lives using Doppler Shift Attenuation method. 31S, 31P; deduced B(E1). 31Si, 31P, 31,35S, 35Cl, 35Ar; analyzed B(E1), isospin mixing.

doi: 10.1103/PhysRevC.78.024301
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2007SE04      Phys.Rev.Lett. 99, 022504 (2007)

D.Seweryniak, M.P.Carpenter, S.Gros, A.A.Hecht, N.Hoteling, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, C.J.Lister, G.Lotay, D.Peterson, A.P.Robinson, W.B.Walters, X.Wang, P.J.Woods, S.Zhu

Single-Neutron States in 101Sn

NUCLEAR REACTIONS 46Ti(58Ni, X)101Sn, E=192 MeV; measured Eγ, Ep, pγ-coinc. 101Sn deduced levels and relative single particle energies.

doi: 10.1103/PhysRevLett.99.022504
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2006SE08      Phys.Rev. C 73, 061301 (2006)

D.Seweryniak, K.Starosta, C.N.Davids, S.Gros, A.A.Hecht, N.Hoteling, T.L.Khoo, K.Lagergren, G.Lotay, D.Peterson, A.Robinson, C.Vaman, W.B.Walters, P.J.Woods, S.Zhu

α decay of 105Te

RADIOACTIVITY 105Te(α) [from 50Cr(58Ni, 3n)]; measured Qα, T1/2. Comparison with neighboring isotopes, model predictions.

doi: 10.1103/PhysRevC.73.061301
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Note: The following list of authors and aliases matches the search parameter G.Lotay: , G.J.LOTAY, G.L.LOTAY