NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = A.Roberts Found 50 matches. 2017AG09 Phys.Rev. C 96, 024616 (2017) E.F.Aguilera, E.Martinez-Quiroz, P.Amador-Valenzuela, D.Lizcano, A.Garcia-Flores, J.J.Kolata, A.Roberts, G.V.Rogachev, G.F.Peaslee, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, Y.Chen, H.Jiang, M.Febbraro, P.A.DeYoung, T.L.Belyaeva Sub-barrier fusion of weakly bound 6Li with 58Ni NUCLEAR REACTIONS 58Ni(6Li, X), E=10.8, 11.5, 12.7, 13.2, 13.7, 14.4 MeV, [secondary pure 6Li beam from 3He(6Li, 6Li), E=31-38 MeV reaction]; measured σ(θ, E) for evaporated protons at the University of Notre Dame FN tandem accelerator facility; deduced proton multiplicities, fusion σ(E) and total reaction σ(E). Proton angular distributions compared with statistical model calculations using PACE2 code. Comparison of fusion σ(E) data with previous experimental data for this reaction and for the 6Li+59Co, 6Li+64Zn, and 6Li+64Ni systems. Comparison with theoretical calculations using one-dimensional barrier penetration model (BPM) and coupled-channel (CC) method using optical model potentials.
doi: 10.1103/PhysRevC.96.024616
2017SE02 Phys.Rev. C 95, 015501 (2017) S.J.Seestrom, E.R.Adamek, D.Barlow, M.Blatnik, L.J.Broussard, N.B.Callahan, S.M.Clayton, C.Cude-Woods, S.Currie, E.B.Dees, W.Fox, M.Hoffbauer, K.P.Hickerson, A.T.Holley, C.-Y.Liu, M.Makela, J.Medina, D.J.Morley, C.L.Morris, R.W.Pattie, J.Ramsey, A.Roberts, D.J.Salvat, A.Saunders, E.I.Sharapov, S.K.L.Sjue, B.A.Slaughter, P.L.Walstrom, Z.Wang, J.Wexler, T.L.Womack, A.R.Young, J.Vanderwerp, B.A.Zeck Total cross sections for ultracold neutrons scattered from gases NUCLEAR REACTIONS 1H, 3He(n, n'), E=ultracold neutrons; measured scattered neutrons, transmission ratio as a function of pressure, total cross sections, total cross section as a function of the number of hydrogen atoms using the following gas targets: hydrogen, ethane, methane, isobutene, n-butane, ethylene, water vapor, propane, neopentane, isopropyl alcohol, and 3He; deduced cross section per hydrogen atom as a function of molecular mass. Relevance to ongoing experiments pn neutron half-life measurements using ultracold neutrons (UCN) at LANL facility.
doi: 10.1103/PhysRevC.95.015501
2016CU02 Phys.Rev. C 94, 034313 (2016) N.Curtis, S.Almaraz-Calderon, A.Aprahamian, N.I.Ashwood, M.Barr, B.Bucher, P.Copp, M.Couder, X.Fang, M.Freer, G.Goldring, F.Jung, S.R.Lesher, W.Lu, J.D.Malcolm, A.Roberts, W.P.Tan, C.Wheldon, V.A.Ziman 8Be + 8Be and 12C + α breakup states in 16O populated via the 13C(4He, 4α)n reaction NUCLEAR REACTIONS 13C(α, 16O), E=22.0, 27.0, 27.5, 28.0 MeV; measured reaction products using four position-sensitive double-sided Si strip detectors, at Notre Dame FN Tandem accelerator facility. 16O; deduced levels identified through the 8Be+8Be and 12C*+α channels, J, π, centroids, cross sections. Comparison with previous studies using 12C(α, 8Be)8Be and 12C(16O, 4α)12C reactions. Relevance to 4α chain structure in 16O.
doi: 10.1103/PhysRevC.94.034313
2016GU09 Phys.Rev. C 93, 064607 (2016) V.Guimaraes, J.J.Kolata, E.F.Aguilera, A.Howard, A.Roberts, F.D.Becchetti, R.O.Torres-Isea, A.Riggins, M.Febrarro, V.Scarduelli, P.N.de Faria, D.S.Monteiro, J.F.P.Huiza, A.Arazi, J.Hinnefeld, A.M.Moro, E.S.Rossi, V.Morcelle, A.Barioni, AlanJ.Mitchell Backscattering measurement of 6He on 209Bi: Critical interaction distance NUCLEAR REACTIONS 209Bi(6He, 6He), E=12, 14, 16 MeV, [secondary 6He beam from 2H(7Li, 6He), E=32 MeV]; measured 6He spectra using silicon ΔE-E telescope, σ(θ, E) at the TwinSol facility of Notre Dame Nuclear Structure Laboratory; deduced ratio of elastic to Rutherford cross sections. Comparison with a three-body CDCC calculation, and with experimental data for 209Bi(α, α), (6Li, 6Li), (9Be, 9Be), (12C, 12C), (16O, 16O), and 208Pb(6He, 6He) reactions.
doi: 10.1103/PhysRevC.93.064607
2016SM02 Phys.Rev. C 94, 014320 (2016) R.Smith, C.Wheldon, M.Freer, N.Curtis, Tz.Kokalova, S.Almaraz-Calderon, A.Aprahamian, N.I.Ashwood, M.Barr, B.Bucher, P.Copp, M.Couder, X.Fang, G.Goldring, F.Jung, S.R.Lesher, W.Lu, J.D.Malcolm, A.Roberts, W.P.Tan, V.A.Ziman Evidence for a 3.8 MeV state in 9Be NUCLEAR REACTIONS 9Be(α, n3α), E=22, 26 MeV; measured Eα, Iα using an array of double-sided silicon strip detectors (DSSSDs) at the Notre Dame FN Tandem Van de Graaff accelerator facility; extracted sum energy spectra for all four final-state particles, assumed to be 3α+n, 9Be excitation spectrum. 9Be; deduced levels, new state at 3.8 MeV, J, π, width, ratios of reduced widths to Wigner limits (decays to 8Be ground state). 9Be, 9B; comparison of levels and widths in mirror nuclei.
doi: 10.1103/PhysRevC.94.014320
2015BU08 Phys.Rev.Lett. 114, 251102 (2015) B.Bucher, X.D.Tang, X.Fang, A.Heger, S.Almaraz-Calderon, A.Alongi, A.D.Ayangeakaa, M.Beard, A.Best, J.Browne, C.Cahillane, M.Couder, R.J.deBoer, A.Kontos, L.Lamm, Y.J.Li, A.Long, W.Lu, S.Lyons, M.Notani, D.Patel, N.Paul, M.Pignatari, A.Roberts, D.Robertson, K.Smith, E.Stech, R.Talwar, W.P.Tan, M.Wiescher, S.E.Woosley First Direct Measurement of 12C(12C, n)23Mg at Stellar Energies NUCLEAR REACTIONS 12C(12C, n), E=7.5, 9.5 MeV; measured reaction products, Eγ, Iγ, En, In; deduced yields, S-factors, astrophysical reaction rate. Comparison with available data.
doi: 10.1103/PhysRevLett.114.251102
2015RO01 Appl.Radiat.Isot. 96, 122 (2015) A.D.Roberts, C.G.R.Geddes, N.Matlis, K.Nakamura, J.P.O'Neil, B.H.Shaw, S.Steinke, J.van Tilborg, W.P.Leemans Measured bremsstrahlung photonuclear production of 99Mo (99mTc) with 34 MeV to 1.7 GeV electrons NUCLEAR REACTIONS 100Mo(γ, n), E<1.7 GeV; measured reaction products; deduced yields. Comparison with available data and calculations.
doi: 10.1016/j.apradiso.2014.11.008
2015SE18 Phys.Rev. C 92, 065501 (2015) S.J.Seestrom, E.R.Adamek, D.Barlow, L.J.Broussard, N.B.Callahan, S.M.Clayton, C.Cude-Woods, S.Currie, E.B.Dees, W.Fox, P.Geltenbort, K.P.Hickerson, A.T.Holley, C.-Y.Liu, M.Makela, J.Medina, D.J.Morley, C.L.Morris, J.Ramsey, A.Roberts, D.J.Salvat, A.Saunders, E.I.Sharapov, S.K.L.Sjue, B.A.Slaughter, B.VornDick, P.L.Walstrom, Z.Wang, T.L.Womack, A.R.Young, B.A.Zeck, for the UCN|t Collaboration Upscattering of ultracold neutrons from gases NUCLEAR REACTIONS 1,2H, C, F, N, Ne, Ar, Xe(n, n'), E=UCNs from Los Alamos Neutron Science Center (LANSCE) ultracold neutron source; measured Eγ, Iγ, E(n), I(n), upscattered cross sections for room temperature gas targets of hydrogen, deuterium, nitrogen, neon, argon, xenon, C4H10, CF4, and air. Comparison with experimental values for higher neutron energies, and with theoretical calculations. Relevance to measurement of the half-life of free neutron decay at LANSCE using a magnetogravitational trap.
doi: 10.1103/PhysRevC.92.065501
2014MA49 Phys.Rev. C 90, 014616 (2014) E.Martinez-Quiroz, E.F.Aguilera, D.Lizcano, P.Amador-Valenzuela, H.Garcia-Martinez, J.J.Kolata, A.Roberts, L.O.Lamm, G.Rogachev, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, M.Febbraro, Y.Chen, H.Jiang, P.A.DeYoung, G.F.Peaslee Near- and sub-barrier fusion of the 7Be + 58Ni system NUCLEAR REACTIONS 58Ni(7Be, X), E=16.4, 17.5, 19.4, 20.1, 20.9, 21.9 MeV; measured evaporated proton spectra, σ(E) for protons at Notre Dame TwinSol Radioactive Nuclear Beam facility and FM tandem accelerator; deduced total fusion σ(E) using proton multiplicities. Comparison with predictions of Wong's one-dimensional barrier-penetration model (BPM), and optical model potential (OMP). Comparison with previous experimental results for fusion σ(E) in 27Al(7Be, X), and fission σ(E) in 238U(7Be, F).
doi: 10.1103/PhysRevC.90.014616
2013AG01 Phys.Rev. C 87, 014613 (2013) E.F.Aguilera, E.Martinez-Quiroz, R.Chavez-Gonzalez, P.Amador-Valenzuela, D.Lizcano, A.Gomez-Camacho, J.J.Kolata, L.O.Lamm, A.Roberts, T.Spencer, F.D.Becchetti, H.Jiang, M.Ojaruega, P.A.DeYoung, G.F.Peaslee, J.Brown Near-barrier fusion and total reaction of a proton-rich projectile: 3He+58Ni NUCLEAR REACTIONS 58Ni(3He, X), (3He, 3He), E=10.2, 11.5, 12.7 MeV; measured proton and 3He spectra, σ(θ) at Notre Dame TwinSol facility; deduced integrated proton production σ, reduced fusion σ. Comparison with 58Ni+8Be and 58Ni+16O systems, and with PACE calculations.
doi: 10.1103/PhysRevC.87.014613
2013CU04 Phys.Rev. C 88, 064309 (2013) N.Curtis, S.Almaraz-Calderon, A.Aprahamian, N.I.Ashwood, M.Barr, B.Bucher, P.Copp, M.Couder, X.Fang, M.Freer, G.Goldring, F.Jung, S.R.Lesher, W.Lu, J.D.Malcolm, A.Roberts, W.P.Tan, C.Wheldon, V.A.Ziman Investigation of the 4α linear chain state in 16O NUCLEAR REACTIONS 12C(α, 8Be)8Be, (α, 12C), [12C* decaying to 8Be+α], E=12.2-20.0 MeV; measured Eα, Iα, α(θ), αα-coin, σ(E, θ) at Notre Dame FN tandem facility. Phase shift analysis of σ(θ) data. 16O; deduced levels, resonances, J. Comparison with previous experimental results. No evidence found for rigid, 4α-linear chain in 16O.
doi: 10.1103/PhysRevC.88.064309
2013KO15 Phys.Rev. C 87, 057309 (2013) Tz.Kokalova, M.Freer, N.Curtis, N.I.Ashwood, M.Barr, J.D.Malcolm, C.Wheldon, V.A.Ziman, S.Almaraz-Calderon, A.Aprahamian, B.Bucher, M.Couder, X.Fang, F.Jung, W.Lu, A.Roberts, W.P.Tan, P.Copp, S.R.Lesher Yield measurements for resonances above the multi-α threshold in 20Ne NUCLEAR REACTIONS 16O(α, X), E=23.0-29.0 MeV; measured α and particle spectra, (particle)(particle)α-coin, yields for 8Be+8Be+α, and 8Be+12C(second 0+) channels. Measurements at Notre Dame facility. 20Ne; deduced levels, resonances, J. Monte Carlo simulations.
doi: 10.1103/PhysRevC.87.057309
2013KO17 Phys.Rev. C 87, 064612 (2013) Z.Kohley, J.F.Liang, D.Shapira, C.J.Gross, R.L.Varner, J.M.Allmond, J.J.Kolata, P.E.Mueller, A.Roberts Sub-barrier fusion enhancement with radioactive 134Te NUCLEAR REACTIONS 40Ca(134Te, X), [134Te secondary beam from U(p, X) primary reaction], E=535-619 MeV; measured evaporation residue spectra using CSSER system at HRIBF facility, σ(E), time-of-flight, ΔE1-ΔE2 contour plots. Comparison with statistical model using PACE2 computer code. Comparison of σ(E) with those in 40Ca+132Te, 48Ca+132Te, 40Ca+124Te, 48Ca+124Te, 64Ni+130Te, 58Ni+130Te reactions. Positive Q-value neutron transfer (PQNT) channels. Coupled-channel analyses.
doi: 10.1103/PhysRevC.87.064612
2013RO10 Phys.Rev. C 87, 051305 (2013) A.Roberts, A.M.Howard, J.J.Kolata, A.N.Villano, F.D.Becchetti, P.A.DeYoung, M.Febbraro, S.J.Freeman, B.P.Kay, S.A.McAllister, A.J.Mitchell, J.P.Schiffer, J.S.Thomas, R.O.Torres-Isea Proton pair correlations and the neutrinoless double-β decay of 76Ge NUCLEAR REACTIONS 74,76Ge(3He, n), E=16 MeV; measured E(n), I(n), time-of-flight, σ(θ) for g.s. and first 2+ state using the Neutron Wall at Notre Dame. 76,78Se; deduced levels, proton pair correlations. DWBA analysis. Comparison with quasiparticle random phase approximation (QRPA) model calculations. Relevance to matrix elements for 0νββ decay of 76Ge. Systematics of ground-state cross sections on fpg-shell nuclei of A=60-90, and comparison with theoretical models. No evidence for the breaking of the BCS approximation for paired protons.
doi: 10.1103/PhysRevC.87.051305
2013SC25 Phys.Rev. C 88, 064612 (2013) K.T.Schmitt, K.L.Jones, S.Ahn, D.W.Bardayan, A.Bey, J.C.Blackmon, S.M.Brown, K.Y.Chae, K.A.Chipps, J.A.Cizewski, K.I.Hahn, J.J.Kolata, R.L.Kozub, J.F.Liang, C.Matei, M.Matos, D.Matyas, B.Moazen, C.D.Nesaraja, F.M.Nunes, P.D.O'Malley, S.D.Pain, W.A.Peters, S.T.Pittman, A.Roberts, D.Shapira, J.F.Shriner, M.S.Smith, I.Spassova, D.W.Stracener, N.J.Upadhyay, A.N.Villano, G.L.Wilson Reactions of a 10Be beam on proton and deuteron targets NUCLEAR REACTIONS 2H(10Be, p), (10Be, d), 1H(10Be, p), E=60, 75, 90, 107 MeV; measured Ep, Ip, E(d), I(d), elastic and inelastic σ(θ, E) using SIDAR, ORRUBA, and SuperORRUBA arrays of particle detectors at HRIBF-ORNL facility. 11Be; deduced levels, and spectroscopic factors for halo nucleus. Finite-range adiabatic wave approximation (FR-ADWA) analysis.
doi: 10.1103/PhysRevC.88.064612
2013SI11 Phys.Rev. C 87, 055802 (2013) A.Simon, A.Spyrou, T.Rauscher, C.Frohlich, S.J.Quinn, A.Battaglia, A.Best, B.Bucher, M.Couder, P.A.DeYoung, X.Fang, J.Gorres, A.Kontos, Q.Li, L.-Y.Lin, A.Long, S.Lyons, A.Roberts, D.Robertson, K.Smith, M.K.Smith, E.Stech, B.Stefanek, W.P.Tan, X.D.Tang, M.Wiescher Systematic study of (p, γ) reactions on Ni isotopes NUCLEAR REACTIONS 58,60,61,62,64Ni(p, γ), E=2.0-6.0 MeV; measured Eγ, Iγ, σ(E) using the NSCL-SuN gamma detector utilizing γ-summing technique at Notre Dame; deduced sensitivity of the reaction σ(E) with variation of γ- and particle width. Comparison with theoretical predictions from NON-SMOKER and SMARAGD computer code calculations, and with previous experimental data. Predicted astrophysical reaction rates on all stable nickel isotopes including that for 56Ni(p, γ)57Cu.
doi: 10.1103/PhysRevC.87.055802
2013SI35 Nucl.Instrum.Methods Phys.Res. A 703, 16 (2013) A.Simon, S.J.Quinn, A.Spyrou, A.Battaglia, I.Beskin, A.Best, B.Bucher, M.Couder, P.A.Deyoung, X.Fang, J.Gorres, A.Kontos, Q.Li, S.N.Liddick, A.Long, S.Lyons, K.Padmanabhan, J.Peace, A.Roberts, D.Robertson, K.Smith, M.K.Smith, E.Stech, B.Stefanek, W.P.Tan, X.D.Tang, M.Wiescher SuN: Summing NaI(Tl) gamma-ray detector for capture reaction measurements NUCLEAR REACTIONS 27Al(p, γ), E=2.3-3.9 MeV; measured products, Eγ, Iγ; deduced resonance parameters. Data were imported from EXFOR entry C1967.
doi: 10.1016/j.nima.2012.11.045
2013SP04 Phys.Rev. C 88, 045802 (2013) A.Spyrou, S.J.Quinn, A.Simon, T.Rauscher, A.Battaglia, A.Best, B.Bucher, M.Couder, P.A.DeYoung, A.C.Dombos, X.Fang, J.Gorres, A.Kontos, Q.Li, L.Y.Lin, A.Long, S.Lyons, B.S.Meyer, A.Roberts, D.Robertson, K.Smith, M.K.Smith, E.Stech, B.Stefanek, W.P.Tan, X.D.Tang, M.Wiescher Measurement of the 90, 92Zr(p, γ)91, 93Nb reactions for the nucleosynthesis of elements near A=90 NUCLEAR REACTIONS 90,92Zr(p, γ)91Nb/93Nb, E=2.0-5.0 MeV; measured Eγ, Iγ, σ(E) using NSCL SuN detector at Notre Dame accelerator facility; deduced astrophysical S factors, reaction rates, sensitivity of reaction to widths in Hauser-Feshbach model. Comparison with standard NON-SMOKER model, and two TALYS calculations. Relevance to synthesis and abundances of light p nuclei.
doi: 10.1103/PhysRevC.88.045802
2013SU10 Phys.Rev. C 87, 054301 (2013) D.Suzuki, A.Shore, W.Mittig, J.J.Kolata, D.Bazin, M.Ford, T.Ahn, F.D.Becchetti, S.Beceiro Novo, D.Ben Ali, B.Bucher, J.Browne, X.Fang, M.Febbraro, A.Fritsch, E.Galyaev, A.M.Howard, N.Keeley, W.G.Lynch, M.Ojaruega, A.L.Roberts, X.D.Tang Resonant α scattering of 6He: Limits of clustering in 10Be NUCLEAR REACTIONS 4He(6He, 6He), (6He, 6He'), (6He, 2n)8Be, [secondary 6He beam from 7Li(d, 3He), E=29.2 MeV primary reaction], E=15 MeV; measured reactions products, 6He spectra, elastic and inelastic σ(E, θ) using PAT-TPC system at Notre Dame TwinSol facility. 4,6He, 8Be; deduced levels, cross sections for g.s. and first 2+ states. 10Be; deduced level, resonance, J, π, α width. Discussed α clustering in high-spin states. Comparison with antisymmetric molecular dynamics calculations.
doi: 10.1103/PhysRevC.87.054301
2012AL11 Phys.Rev. C 86, 025801 (2012); Pub.Note. Phys.Rev. C 86, 029901 (2012) S.Almaraz-Calderon, W.P.Tan, A.Aprahamian, B.Bucher, A.Roberts, M.Wiescher, C.R.Brune, T.N.Massey, N.Ozkan, R.T.Guray, H.Mach Level structure of 18Ne and its importance in the 14O(α, p)17F reaction rate NUCLEAR REACTIONS 16O(3He, n), E=15 MeV; measured neutron and charged particle spectra, (particle)n-coin, neutron time-of-flight spectrum, p(θ), branching ratios for proton, 2p and α decays of excited states. 18Ne; deduced levels, resonances, J, π, decay modes, widths. 14,16O, 17F; populated g.s. from p, 2p and α decays of 18Ne resonances, and first excited state in 17F from p decay of 18Ne resonances. 14O(α, p)17F, T=0.1-5 GK; calculated reaction rates of astrophysical interest for Hot CNO cycles and their breakout paths towards the rp process. Comparison with previous studies.
doi: 10.1103/PhysRevC.86.025801
2012AL23 Phys.Rev. C 86, 065805 (2012); Erratum Phys.Rev. C 88, 059902 (2013) S.Almaraz-Calderon, W.P.Tan, A.Aprahamian, M.Beard, G.P.A.Berg, B.Bucher, M.Couder, J.Gorres, S.O'Brien, D.Patel, A.Roberts, K.Sault, M.Wiescher, C.R.Brune, T.N.Massey, K.Fujita, K.Hatanaka, D.Ishiwaka, H.Matsubara, H.Okamura, H.J.Ong, Y.Sakemi, Y.Shimizu, T.Suzuki, Y.Tameshige, A.Tamii, J.Zenihiro, T.Kubo, Y.Namiki, Y.Ohkuma, Y.Shimbara, S.Suzuki, R.Watanabe, R.Yamada, T.Adachi, Y.Fujita, H.Fujita, M.Dozono, T.Wakasa Level structure of 30S and its importance in the 26Si(α, p)29P and 29P(p, γ)30S reaction rates NUCLEAR REACTIONS 32S(p, t), E=98.7 MeV; measured triton spectra at two angles using Grand Raiden (GR) magnetic spectrometer at RCNP facility. 28Si(3He, n), E=15 MeV; measured neutron (TOF) spectra, charged-particle spectra, (charged-particle)n-coin, angular distributions using LESA array and scintillation detectors at Notre Dame NSL facility. 30S; deduced levels, proton- and α- unbound levels, J, π, proton branching ratios, partial proton widths. DWBA analysis. Comparison with several previous experimental studies. 29P(p, γ)30S, 26Si(α, p)29P, T9=0.01-10 GK; deduced astrophysical reaction rates. Comparison with previous theoretical calculations. Contribution of resonances to total reaction rates.
doi: 10.1103/PhysRevC.86.065805
2012BU19 J.Phys.:Conf.Ser. 381, 012121 (2012) B.Bucher, J.Browne, S.Almaraz-Calderon, A.Alongi, A.D.Ayangeakaa, A.Best, M.Couder, J.DeBoer, X.Fang, W.Lu, M.Notani, D.Patel, N.Paul, A.Roberts, R.Talwar, W.Tan, X.D.Tang, A.Villano The Role of 12C(12C, n) in the Astrophysical S-Process NUCLEAR REACTIONS 12C(12C, n), E(cm)=3.54-8.74 MeV; measured thin and thick target (4.23-8.74 MeV and 3.54-4.74 MeV, respectively) β-delayed γ rays; deduced modified S-factor, reaction rates. Compared with other data and predictions.
doi: 10.1088/1742-6596/381/1/012121
2012CU04 J.Phys.:Conf.Ser. 381, 012079 (2012) N.Curtis, S.Almaraz-Calderon, A.Aprahamian, N.I.Ashwood, M.Barr, B.Bucher, P.Copp, M.Couder, X.Fang, M.Freer, G.Goldring, F.Jung, S.R.Lesher, W.Lu, J.D.Malcolm, A.Roberts, W.P.Tan, C.Wheldon, V.A.Ziman Does a 4-α linear chain exist in 16O? NUCLEAR REACTIONS 12C(α, 8Be), E=12.2-20.0 MeV; measured Eα, Iα from 8Be decay using DSSSD; deduced σ(θ=900), doublet 6+ resonance and its components.
doi: 10.1088/1742-6596/381/1/012079
2012FR11 J.Phys.:Conf.Ser. 381, 012009 (2012) M.Freer, S.Almaraz-Calderon, J.Carter, A.Aprahamian, N.I.Ashwood, M.Barr, B.Bucher, P.Copp, M.Couder, N.Curtis, X.Fang, F.Jung, S.Lesher, W.Lu, J.D.Malcolm, A.Roberts, R.Smit, W.P.Tan, C.Wheldon, V.A.Ziman Simplicity from Complexity
doi: 10.1088/1742-6596/381/1/012009
2012KO18 Phys.Rev. C 85, 054603 (2012) J.J.Kolata, A.Roberts, A.M.Howard, D.Shapira, J.F.Liang, C.J.Gross, R.L.Varner, Z.Kohley, A.N.Villano, H.Amro, W.Loveland, E.Chavez Fusion of 124, 132Sn with 40, 48Ca NUCLEAR REACTIONS 40,48Ca(124Sn, X), (132Sn, X), E(cm)=105-165 MeV; measured evaporation residue spectra, fusion σ(E); deduced reduced fusion σ(E), fusion barriers. Inverse kinematics. Wong model and PACE2 fits. Comparison with time-dependent Hartree-Fock (TDHF) and coupled-channels Born approximation (CCBA) calculations.
doi: 10.1103/PhysRevC.85.054603
2012SC08 Phys.Rev.Lett. 108, 192701 (2012) K.T.Schmitt, K.L.Jones, A.Bey, S.H.Ahn, D.W.Bardayan, J.C.Blackmon, S.M.Brown, K.Y.Chae, K.A.Chipps, J.A.Cizewski, K.I.Hahn, J.J.Kolata, R.L.Kozub, J.F.Liang, C.Matei, M.Matos, D.Matyas, B.Moazen, C.Nesaraja, F.M.Nunes, P.D.O'Malley, S.D.Pain, W.A.Peters, S.T.Pittman, A.Roberts, D.Shapira, J.F.Shriner, Jr., M.S.Smith, I.Spassova, D.W.Stracener, A.N.Villano, G.L.Wilson Halo Nucleus 11Be: A Spectroscopic Study via Neutron Transfer NUCLEAR REACTIONS 2H(10Be, p)11Be, E=60, 75, 90, 107 MeV; measured reaction products, light ejectiles, Ep, Ip; deduced σ(θ), spectroscopic factors for the first excited and halo neutron states. Comparison with available data.
doi: 10.1103/PhysRevLett.108.192701
2011AG15 Phys.Rev.Lett. 107, 092701 (2011) E.F.Aguilera, P.Amador-Valenzuela, E.Martinez-Quiroz, D.Lizcano, P.Rosales, H.Garcia-Martinez, A.Gomez-Camacho, J.J.Kolata, A.Roberts, L.O.Lamm, G.Rogachev, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, M.Febbraro, Y.Chen, H.Jiang, P.A.DeYoung, G.F.Peaslee, C.Guess, U.Khadka, J.Brown, J.D.Hinnefeld, L.Acosta, E.S.Rossi, Jr., J.F.P.Huiza, T.L.Belyaeva Near-Barrier Fusion of the 8B+58Ni Proton-Halo System NUCLEAR REACTIONS 58Ni(8B, X)66As, E=22.4-26.9 MeV; measured reaction products, proton spectra; deduced fusion σ, fusion and breakup yields.
doi: 10.1103/PhysRevLett.107.092701
2011BA25 Phys.Rev. C 84, 014603 (2011) A.Barioni, J.C.Zamora, V.Guimaraes, B.Paes, J.Lubian, E.F.Aguilera, J.J.Kolata, A.L.Roberts, F.D.Becchetti, A.Villano, M.Ojaruega, H.Jiang Elastic scattering and total reaction cross sections for the 8B, 7Be, and 6Li +12C systems NUCLEAR REACTIONS 12C(8B, 8B), E=25.8 MeV; 12C(7Be, 7Be), E=18.8 MeV; 12C(6Li, 6Li), E=12.3 MeV; measured particle spectra, tof, σ(θ). Optical model analysis of σ(θ) data using Woods-Saxon and double-folding type potentials. 12C(8B, 8B); deduced effect of breakup by coupled-channels calculations using continuum discretized coupled-channel method and cluster-model folding potentials. Experimental data for 12C(α, α), (6He, 6He), (7Li, 7Li), (9Be, 9Be), (11B, 11B), (16O, 16O), E(cm)=2.8-22.8 MeV used to extract reduced reaction σ.
doi: 10.1103/PhysRevC.84.014603
2011FR02 Phys.Rev. C 83, 034314 (2011) M.Freer, S.Almaraz-Calderon, A.Aprahamian, N.I.Ashwood, M.Barr, B.Bucher, P.Copp, M.Couder, N.Curtis, X.Fang, F.Jung, S.Lesher, W.Lu, J.D.Malcolm, A.Roberts, W.P.Tan, C.Wheldon, V.A.Ziman Evidence for a new 12C state at 13.3 MeV NUCLEAR REACTIONS 9Be, 12C(α, 3α), E=22-30 MeV; measured Eα, Iα, 12C-α angular correlations; deduced Dalitz plot. 12C; deduced levels, J, π, width. Possible collective excitation of Hoyle state.
doi: 10.1103/PhysRevC.83.034314
2009VI09 Phys.Rev. C 80, 054609 (2009) A.M.Vinodkumar, W.Loveland, P.H.Sprunger, L.Prisbrey, M.Trinczek, M.Dombsky, P.Machule, J.J.Kolata, A.Roberts Fusion of 9Li with 208Pb NUCLEAR REACTIONS 208Pb(9Li, nx)211At/212At/213At/214At, E(cm)=24.84, 27.35, 29.86, 32.36, 34.87, 37.37, 39.88, 42.38, 44.89 MeV; 209Bi(7Li, nx)212Rn/213Rn, E(cm)=34.95 MeV; measured nuclidic yields, and fusion σ using ISAC2 facility at TRIUMF. Comparison with HVAP statistical model code and coupled-channel calculations. RADIOACTIVITY 211,212,212m,213,214,214mAt(α); measured Eα.
doi: 10.1103/PhysRevC.80.054609
2008VI08 Phys.Rev. C 78, 054608 (2008) A.M.Vinodkumar, W.Loveland, J.J.Neeway, L.Prisbrey, P.H.Sprunger, D.Peterson, J.F.Liang, D.Shapira, C.J.Gross, R.L.Varner, J.J.Kolata, A.Roberts, A.L.Caraley 132Sn+96Zr reaction: A study of fusion enhancement/hindrance NUCLEAR REACTIONS 96Zr(124Sn, X), E(cm)=600 MeV; 96Zr(132Sn, X), E(cm)=192.8-249.1 MeV; calculated σ. Comparison with coupled channels calculations.
doi: 10.1103/PhysRevC.78.054608
1997RE05 Nucl.Phys. A616, 115c (1997) K.E.Rehm, M.Paul, A.D.Roberts, C.L.Jiang, D.Blumenthal, C.N.Davids, P.DeCrock, S.M.Fischer, J.Gehring, D.Henderson, C.J.Lister, J.Nickles, J.Nolen, R.C.Pardo, J.P.Schiffer, R.E.Segel Nuclear Reaction Studies with Radioactive 18F Beams at ATLAS NUCLEAR REACTIONS, ICPND 1H(18F, α), E(cm) ≈ 5.75-7 MeV; measured σ(E). 1H(18F, γ), E(cm)=0.67 MeV; measured σ; deduced reaction rates ratio, small contribution from (p, γ) route to 19Ne formation.
doi: 10.1016/S0375-9474(97)00080-8
1997RE17 Nucl.Phys. A621, 191c (1997) K.E.Rehm, M.Paul, A.D.Roberts, C.L.Jiang, D.Blumenthal, C.N.Davids, P.DeCrock, S.M.Fischer, J.Gehring, D.Henderson, C.J.Lister, J.Nickles, J.Nolen, R.C.Pardo, J.P.Schiffer, R.E.Segel, D.Seweryniak The Influence of 18F Induced Reactions in the Hot CNO Cycle NUCLEAR REACTIONS, ICPND 1H(18F, 15O), (18F, 19Ne), E=11.7-15.1 MeV; measured resonance reaction σ vs E; deduced reaction rates features. 19Ne deduced resonance strengths, widths. Astrophysical implications, radioactive beam.
doi: 10.1016/S0375-9474(97)00236-4
1996RE05 Phys.Rev. C53, 1950 (1996) K.E.Rehm, M.Paul, A.D.Roberts, C.L.Jiang, D.J.Blumenthal, S.M.Fischer, J.Gehring, D.Henderson, J.Nickles, J.Nolen, R.C.Pardo, J.P.Schiffer, R.E.Segel Astrophysical Reaction Rate for the 18F(p, α)15O Reaction NUCLEAR REACTIONS, ICPND 18F(p, α), E(cm)=600-800 keV; measured σ(E), resonance yield; calculated reaction rate. 19Ne deduced resonance, J, π, Γp, Γα, Γ.
doi: 10.1103/PhysRevC.53.1950
1996RO11 Appl.Radiat.Isot. 47, 563 (1996) A Reevaluation of (nat)Ne(p, X)18F Yields with 19-41 MeV Protons NUCLEAR REACTIONS, ICPND Ne(p, X)19F/18Ne, E=19-41 MeV; measured residual yields; calculated thick target saturation yields.
doi: 10.1016/0969-8043(96)00012-7
1995RE11 Phys.Rev. C52, R460 (1995) K.E.Rehm, M.Paul, A.D.Roberts, D.J.Blumenthal, J.Gehring, D.Henderson, C.L.Jiang, J.Nickles, J.Nolen, R.C.Pardo, J.P.Schiffer, R.E.Segel Study of the 18F(p, α)15O Reaction at Astrophyical Energies using a 18F Beam NUCLEAR REACTIONS 18F(p, α), E(cm)=580-760 keV; measured σ(θ) vs E; deduced nuclosynthesis, CNO cycle implications. 19Ne deduced resonance, Γp, Γα, s-wave resonance strength. Gas-filled magnet technique.
doi: 10.1103/PhysRevC.52.R460
1995RO40 Nucl.Instrum.Methods Phys.Res. B103, 523 (1995) A.D.Roberts, R.J.Nickles, M.Paul, K.E.Rehm, C.J.Jiang, D.J.Blumenthal, J.Gehring, D.Henderson, J.Nolen, R.C.Pardo, J.P.Schiffer, R.E.Segel Production of a Radioactive 18F Ion Beam for Nuclear Reaction Studies
doi: 10.1016/0168-583X(95)00657-5
1994RO30 Nucl.Instrum.Methods Phys.Res. A344, 307 (1994) M.A.Ross, A.D.Roberts, T.Wise, W.Haeberli, W.A.Dezarn, J.Doskow, H.O.Meyer, R.E.Pollock, B.von Przewoski, T.Rinckel, F.Sperisen, P.V.Pancella Performance of a Polarized-Hydrogen Storage Cell Target
doi: 10.1016/0168-9002(94)90079-5
1991MI18 Phys.Rev. C44, 1995 (1991) M.A.Miller, P.A.Voytas, A.D.Roberts, P.A.Quin, W.Haeberli Polarization Transfer in the 23Na(p(pol), 23Mg(pol))n, 31P(p(pol), 31S(pol))n, and 35Cl(p(pol), 35Ar(pol))n Reactions NUCLEAR REACTIONS 31P(polarized p, n), E=6.38-9.1 MeV; 35Cl(polarized p, n), E=7.27-10.29 MeV; 23Na(polarized p, n), E ≈ 7 MeV; measured residual nucleus β+-decay parity violating asymmetry; deduced polarization transfer coefficient energy dependence. NaI, red phosphorous, Cl2, CCL4-(He) mixture targets. RADIOACTIVITY 31S [from 31P(polarized p, n), E=6.38-9.1 MeV]; 35Ar [from 35Cl(polarized p, n), E=7.27-10.29 MeV]; 23Mg [from 23Na(polarized p, n), E ≈ 7 MeV]; measured β+-decay parity violating asymmetry.
doi: 10.1103/PhysRevC.44.1995
1972RO35 Nucl.Phys. A196, 465 (1972) Two-Nucleon Transfer Reactions between Complex Ions
doi: 10.1016/0375-9474(72)90789-0
1950MO62 Phys.Rev. 79, 905 (1950) M.L.Moon, M.A.Waggoner, A.Roberts Internal Conversion Coefficients of Sc46
doi: 10.1103/PhysRev.79.905
1950WA09 Phys.Rev. 78, 295 (1950) M.A.Waggoner, M.L.Moon, A.Roberts Internal Conversion Coefficients for Co60
doi: 10.1103/PhysRev.78.295
1950WA59 Phys.Rev. 80, 420 (1950) M.A.Waggoner, M.L.Moon, A.Roberts Internal Conversion of γ-Rays from Co60, Cs134, Zn65
doi: 10.1103/PhysRev.80.420
1949GI25 Phys.Rev. 76, 1723 (1949) D.A.Gilbert, A.Roberts, P.A.Griswold Nuclear and Molecular Information from the Microwave Spectrum of FCl
doi: 10.1103/PhysRev.76.1723
1945DE01 Phys.Rev. 68, 193 (1945) M.Deutsch, L.G.Elliott, A.Roberts Disintegration Schemes of Radioactive Substances VIII. Co60
doi: 10.1103/PhysRev.68.193
1943RO01 Phys.Rev. 64, 268 (1943) A.Roberts, L.G.Elliott, J.R.Downing, W.C.Peacock, M.Deutsch Disintegration Schemes of Radioactive Substances. V. I130
doi: 10.1103/PhysRev.64.268
1942DE01 Phys.Rev. 62, 3 (1942) M.Deutsch, J.R.Downing, L.G.Elliott, J.W.Irvine, Jr., A.Roberts Disintegration Schemes of Radioactive Substances. IV. Fe59
doi: 10.1103/PhysRev.62.3
1942DE03 Phys.Rev. 61, 389A (1942) M.Deutsch, A.Roberts, L.G.Elliott Gamma-Rays from Long Period Activities
doi: 10.1103/PhysRev.61.389A
1941DE01 Phys.Rev. 60, 326 (1941) Energies of Gamma-Rays from Br82, I131, I130, Mn55, Mn54,74As
doi: 10.1103/PhysRev.60.326
1941DO01 Phys.Rev. 60, 470 (1941) J.R.Downing, M.Deutsch, A.Roberts Disintegration Scheme of the Yttrium Activity of 100-Day Half-Period RADIOACTIVITY 88Y(EC); measured decay products, Eγ, Iγ, X-rays; deduced γ-ray energies and intensities, X-ray and γ-ray coincidences. Comparison with available data.
doi: 10.1103/PhysRev.60.470
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