NSR Query Results
Output year order : Descending NSR database version of March 18, 2024. Search: Author = W.A.Richter Found 60 matches. 2020AM08 Eur.Phys.J. A 56, 284 (2020) K.Amos, S.Karataglidis, W.A.Richter Charge exchange (p, n) reaction to isobaric analogue states of select nuclei NUCLEAR REACTIONS 90Zr(p, p), (p, n), E=45 MeV; 42,44,48Ca(p, p), (p, n), E=35 MeV; 208Pb(p, p), (p, n), E=45 MeV; analyzed available data; deduced isobaric analogue state (IAS) of ground states of the nuclei, spectroscopic parameters using DWBA98 code.
doi: 10.1140/epja/s10050-020-00278-7
2020RI06 Phys.Rev. C 102, 025801 (2020) W.A.Richter, B.A.Brown, R.Longland, C.Wrede, P.Denissenkov, C.Fry, F.Herwig, D.Kurtulgil, M.Pignatari, R.Reifarth Shell-model studies of the astrophysical rp-process reactions 34S(p, γ)35Cl and 34g, mCl(p, γ)35Ar NUCLEAR REACTIONS 34S(3He, d)35Cl, E=20 MeV; calculated spectroscopic factors for levels in 35Cl up to 7.4 MeV using shell model, and compared with experimental values. 34S(p, γ)35Cl, 34,34mCl(p, γ)35Ar, E not given; calculated levels, resonances, J, π, spectroscopic factors, Γp, Γγ, resonance strengths, thermonuclear reaction rates; discussed impact on predicted 34S/32S isotopic ratio for presolar nova grains. Comparison with experimental data. Shell-model approach, with uncertainties estimated using a Monte Carlo method.
doi: 10.1103/PhysRevC.102.025801
2019WO01 Phys.Rev.Lett. 122, 232701 (2019) C.Wolf, C.Langer, F.Montes, J.Pereira, W.-J.Ong, T.Poxon-Pearson, S.Ahn, S.Ayoub, T.Baumann, D.Bazin, P.C.Bender, B.A.Brown, J.Browne, H.Crawford, R.H.Cyburt, E.Deleeuw, B.Elman, S.Fiebiger, A.Gade, P.Gastis, S.Lipschutz, B.Longfellow, Z.Meisel, F.M.Nunes, G.Perdikakis, R.Reifarth, W.A.Richter, H.Schatz, K.Schmidt, J.Schmitt, C.Sullivan, R.Titus, D.Weisshaar, P.J.Woods, J.C.Zamora, R.G.T.Zegers Constraining the Neutron Star Compactness: Extraction 23Al(p, γ) Reaction Rate for the rp Process NUCLEAR REACTIONS 2H(23Al, n), E=48 MeV/nucleon; measured reaction products, En, In, Eγ, Iγ; deduced J, π, σ, σ(θ), resonance widths and spectroscopic strengths, reaction rates.
doi: 10.1103/PhysRevLett.122.232701
2018LO10 Phys.Rev. C 97, 054307 (2018) B.Longfellow, A.Gade, B.A.Brown, W.A.Richter, D.Bazin, P.C.Bender, M.Bowry, B.Elman, E.Lunderberg, D.Weisshaar, S.J.Williams Measurement of key resonances for the 24Al(p, γ) 25Si reaction rate using in-beam γ-ray spectroscopy NUCLEAR REACTIONS 9Be(26Si, 25Si), E=118 MeV/nucleon; 9Be(25Al, 25Si), E=111 MeV/nucleon, [secondary 25Al and 26Si beams from 9Be(36Ar, X), E=150 MeV/nucleon primary reaction, and using A1900 fragment separator]; measured reaction products, yields, Eγ, Iγ, γγ- and (particle)γ-coin using S800 spectrograph for particles, and the CAESAR and SeGA arrays for γ detection at NSCL-MSU. 25Si; deduced levels, J, π, and γ-decay branching ratios, and compared with experimental levels for mirror nucleus 25Na, and with USDB+CD shell-model calculations. 24Al(p, γ)25Si, T=0.1-10 GK; calculated astrophysical reaction rates using the experimental states and states from charge-dependent USDA and USDB shell-model calculations. Comparison with other theoretical reaction rates.
doi: 10.1103/PhysRevC.97.054307
2017SM02 Phys.Rev. C 95, 054301 (2017) N.A.Smirnova, B.Blank, B.A.Brown, W.A.Richter, N.Benouaret, Y.H.Lam Isospin mixing from β-delayed proton emission RADIOACTIVITY 44Cr, 48Fe(β+), (β+p); calculated half-lives of precursors, excitation energies and electromagnetic widths of the IAS in daughter nuclei, single-particle proton widths and shell-model spectroscopic factors; deduced isospin mixing in the IAS using experimental β-delayed proton to γ-emission branching ratios. 44V, 44Sc, 48Mn, 48V; calculated levels, J, π, and compared with experimental data. Shell model calculations using cdGX1A and cdKB3G effective interactions.
doi: 10.1103/PhysRevC.95.054301
2017TR04 Phys.Rev. C 95, 035501 (2017) S.Triambak, L.Phuthu, A.Garcia, G.C.Harper, J.N.Orce, D.A.Short, S.P.R.Steininger, A.Diaz Varela, R.Dunlop, D.S.Jamieson, W.A.Richter, G.C.Ball, P.E.Garrett, C.E.Svensson, C.Wrede 2+1 to 3+1 γ width in 22Na and second class currents NUCLEAR REACTIONS 21Ne(p, γ)22Na, E=908, 1113 keV; measured Eγ, Iγ, γγ-coin using implanted 21Ne target, two HPGe detectors and a NaI(Tl) detector at CENPA FN tandem accelerator of University of Washington. 22Na; deduced levels, precise width of first 2+ state with T=1 to T=0 3+ ground state transition, weak magnetism form factor for 22Na β decay using the conserved vector current (CVC) hypothesis, and large induced-tensor form factor for the decay by using previous βγ(θ) results. Comparison with theoretical predictions.
doi: 10.1103/PhysRevC.95.035501
2016SM01 Phys.Rev. C 93, 044305 (2016) N.A.Smirnova, B.Blank, B.A.Brown, W.A.Richter, N.Benouaret, Y.H.Lam Theoretical analysis of isospin mixing with the β decay of 56Zn RADIOACTIVITY 56Zn(β+), (β+p); calculated half-life of Tz=-2 56Zn ground state, Tz=-1 energy levels and Jπ and lowest 0+ states in 56Cu, T=2 IAS in 56Cu, theoretical Iβ of the IAS, levels and Jπ of 55Ni, proton and gamma widths, isospin mixing in the IAS, spectroscopic factor for proton emission. Explained highly retarded proton decay of the IAS in 56Cu. Shell-model calculations using isospin nonconserving Hamiltonians based on the cdGX1A and cdKB3G interactions. Comparison with available experimental data.
doi: 10.1103/PhysRevC.93.044305
2015SW01 Phys.Rev. C 91, 034317 (2015) J.A.Swartz, B.A.Brown, P.Papka, F.D.Smit, R.Neveling, E.Z.Buthelezi, S.V.Fortsch, M.Freer, Tz.Kokalova, J.P.Mira, F.Nemulodi, J.N.Orce, W.A.Richter, G.F.Steyn Spectroscopy of narrow, high-lying, low-spin states in 20Ne NUCLEAR REACTIONS 22Ne(p, t), E=60 MeV; measured triton spectra, σ(θ) using QDD magnetic spectrometer at iThemba Labs. 20Ne; deduced levels, J, π, possible 5α cluster state, isospin T=2 states in 20Ne, 20O and 20F. Comparison of angular distributions with calculations using FRESCO code, and structure data with shell-model calculations using OXBASH code.
doi: 10.1103/PhysRevC.91.034317
2014BR10 Phys.Rev. C 89, 062801 (2014);Erratum Phys.Rev. C 92, 069901 (2015) B.A.Brown, W.A.Richter, C.Wrede Shell-model studies of the astrophysical rapid-proton-capture reaction 30P(p, γ)31S NUCLEAR STRUCTURE 31S; calculated levels above 5.9 MeV, J, π, proton widths, spectroscopic factors. Comparison with experimental and evaluated data. NUCLEAR REACTIONS 30P(p, γ)31S, T=0.1-1 GK; calculated thermonuclear reaction rates for negative and positive parity final states. Comparison with other calculations. Discussed large uncertainties in calculating the reaction rate due to non-observation of predicted 1/2- states in astrophysically significant resonance region.
doi: 10.1103/PhysRevC.89.062801
2014PA50 Eur.Phys.J. A 50, 158 (2014) P.Papka, J.F.Sharpey-Schafer, B.A.Brown, T.S.Dinoko, E.A.M.A.Khaleel, E.A.Lawrie, J.J.Lawrie, K.C.W.Li, S.N.T.Majola, W.A.Richter, O.Shirinda, M.A.Stankiewicz, P.Vymers, M.Wiedeking High-resolution two-proton stripping to 2p-1h 7/2- states via the 59Co(3He, n γ)61Cu reaction NUCLEAR REACTIONS 59Co(3He, nγ), E=22.5 MeV; measured Eγ, Iγ, nγ-coin using AFRODITE escape-suppressed spectrometer, HPGe Clover detectors in BGO shields, neutrons using NE102A plastic scintillators; deduced γ-ray spectra, coincidence n-γ spectra, gated γ spectra, population strengths, branching ratio, levels, J, π, γ transitions, single-proton states outside 60Ni.
doi: 10.1140/epja/i2014-14158-x
2013JE04 Phys.Rev. C 87, 064301 (2013) D.G.Jenkins, M.Bouhelal, S.Courtin, M.Freer, B.R.Fulton, F.Haas, R.V.F.Janssens, T.L.Khoo, C.J.Lister, E.F.Moore, W.A.Richter, B.Truett, A.H.Wuosmaa γ-ray spectroscopy of the A=23 T=1/2 nuclei 23Na and 23Mg: High-spin states, mirror symmetry, and applications to nuclear astrophysical reaction rates NUCLEAR REACTIONS 12C(12C, p), E=16 MeV; 12C(12C, n), E=22 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), level half-lives by DSAM using Gammasphere array at ATLAS-ANL facility. 23Na, 23Mg; deduced high-spin levels, J, π, bands, multipolarity, mirror energy differences, proton unbound states. Comparison to Shell-model calculations using PSPDF interaction. 22Ne(p, γ)23Mg; 22Ne(p, γ)23Na; discussed proton unbound states, Gamow window and impact on astrophysical applications.
doi: 10.1103/PhysRevC.87.064301
2013RI05 Phys.Rev. C 87, 065803 (2013) Shell-model studies of the astrophysical rp reaction 29P(p, γ)30S NUCLEAR REACTIONS 29Si(d, p)30Si, E not given; calculated spectroscopic factors using the shell-model with USDA and USDB interactions. 29P(p, γ)30S at T9<10; calculated total rp reaction rates. Comparison with experimental data. NUCLEAR STRUCTURE 30S, 31Si; calculated levels, resonances, J, π, level half-lives, gamma and proton widths, c coefficients of IMME for T=1 states of 30P, 30Si and 30S, resonance strengths, spectroscopic factors. Shell-model with USDA and USDB interactions, and IMME. Comparison with experimental data.
doi: 10.1103/PhysRevC.87.065803
2012BR13 J.Phys.:Conf.Ser. 337, 012003 (2012) Applications of the USD Hamiltonians to rapid-proton capture rates for sd-shell nuclei NUCLEAR STRUCTURE 26Si; calculated levels, J, π. Compared with 26Si, 26Mg data. NUCLEAR REACTIONS 25Al(p, γ), E≈10 keV-3 MeV; calculated resonance capture reaction rate, contribution of individual states. Compared USD, USDA, USDB.
doi: 10.1088/1742-6596/337/1/012003
2012RI02 Phys.Rev. C 85, 045806 (2012) Shell-model studies of the rp reaction 35Ar(p, γ)36K NUCLEAR STRUCTURE 36K, 36Cl; analyzed and calculated levels, J, π, half-lives, spectroscopic factors, widths using isobaric mass multiplet equation (IMME), known energies of the T=1 analog states, and shell-model calculations based on USDA-CDPN and USDB-CDPN interactions. 36K; reassignment of Jπ for some levels. NUCLEAR REACTIONS 35Cl(d, p)36Cl; calculated spectroscopic factors from shell model based on USDA-CDPN and USDB-CDPN. Comparison with experimental data. 35Ar(p, γ)36K; calculated rp reaction rates.
doi: 10.1103/PhysRevC.85.045806
2012RI07 Prog.Theor.Phys.(Kyoto), Suppl. 196, 340 (2012) Calculation of rp-Process Rates in the sd Shell via the Nuclear Shell Model NUCLEAR STRUCTURE 36K; calculated energy levels, J, π. Isobaric Mass Multiplet Equation calculations. NUCLEAR REACTIONS 35Ar(p, γ)36K, E<100 keV; calculated rp process reaction rate vs. temperature.
doi: 10.1143/PTPS.196.340
2012RI10 J.Phys.:Conf.Ser. 381, 012113 (2012) Nuclear structure studies in the 0s1d shell applied to astrophysical rp-process calculations NUCLEAR STRUCTURE 30S; calculated levels, J, π using isobaric mass multiplet equation and T=1 analogue states binding energy. NUCLEAR REACTIONS 29P, 35Ar(p, γ), E≈10 keV-1 MeV; calculated rp reaction rate, γ decay T1/2. 36K(p, γ); calculated reaction rates using shell model with USDA and USDB interactions.
doi: 10.1088/1742-6596/381/1/012113
2011RI03 Prog.Part.Nucl.Phys. 66, 283 (2011) W.A.Richter, B.A.Brown, A.Signoracci, M.Wiescher Shell-model studies of the rp reaction 25Al(p, γ)26Si NUCLEAR REACTIONS 25Al(p, γ)26Si, E<150 keV; calculated reaction rates and uncertainties. NUCLEAR STRUCTURE 26Si; calculated energy levels, J, π, spectroscopic factors. USDA and USDB interaction.
doi: 10.1016/j.ppnp.2011.01.021
2011RI06 Phys.Rev. C 83, 065803 (2011) W.A.Richter, B.A.Brown, A.Signoracci, M.Wiescher Properties of 26Mg and 26Si in the sd shell model and the determination of the 25Al(p, γ)26Si reaction rate NUCLEAR REACTIONS 25Al(p, γ)26Si, E not given; calculated resonance-capture rate, Γg, Γp using sd-shell model with USD, USDA and USDB Hamiltonians. Comparison with experimental data. Astrophysical implications for novae and x-ray bursts. NUCLEAR STRUCTURE 26Si, 26Mg; calculated level energies, resonance energies, J, π, Γg, Γp, spectroscopic factors using sd-shell model and isobaric-mass-multiplet equation (IMME). Comparison with experimental data.
doi: 10.1103/PhysRevC.83.065803
2011RI09 Phys.Rev. C 84, 059802 (2011) W.A.Richter, B.A.Brown, A.Signoracci, M.Wiescher Reply to "Comment on 'Properties of 26Mg and 26Si in the sd shell model and the determination of the 25Al(p, γ)26Si reaction rate'" NUCLEAR REACTIONS 25Al(p, γ)26Si; analyzed and revised reaction rates using updated level and resonance energy.
doi: 10.1103/PhysRevC.84.059802
2010KA39 Nucl.Phys. A848, 110 (2010) S.Karataglidis, K.R.Henninger, W.A.Richter, K.Amos Proton scattering observables from Skyrme-Hartree-Fock densities NUCLEAR REACTIONS 28Si(p, p), E=65, 200 MeV; 32S(p, p), E=29.6, 65 MeV; 40Ar(p, p), E=65 MeV; 40,42,44,48Ca(p, p), E=65 MeV; calculated analyzing powers; 34S(p, p), E=29.8 MeV; 36S(p, p), E=28 MeV; 38S(p, p), E=39 MeV; 40S(p, p), E=30 MeV; 36Ar(p, p), E=33 MeV; 38Ar(p, p), E=33, 65 MeV; 42,44Ar(p, p), E=33 MeV; 46,50,52,54Ca(p, p), E=65 MeV; calculated σ(θ). Shell and Skyrme-Hartree-Fock models. Comparison with data.
doi: 10.1016/j.nuclphysa.2010.08.018
2010PE15 Phys.Rev. C 82, 064305 (2010) S.M.Perez, W.A.Richter, B.A.Brown, M.Horoi Magnetic moments of T=3/2 mirror pairs NUCLEAR MOMENTS 43V, 43Ca, 45Sc, 45Cr, 47Mn, 47Ti, 49Fe, 49V, 51Co, 51Cr, 53Ni, 53Mn; analyzed magnetic moments, γp and γn values of T=3/2 proton-rich nuclei in fp shell by using experimental values for their neutron-rich mirror nuclei. 19Na, 19O, 21F, 21Mg, 23Al, 23Ne, 25Na, 25Si, 27P, 27Mg, 29Al, 29S, 31Cl, 31Si, 33P, 33Ar, 35K, 35S, 37Cl, 37Ca; analyzed gp and γn values of T=3/2 mirror nuclei in sd shell. Shell model calculations.
doi: 10.1103/PhysRevC.82.064305
2009RI10 Phys.Rev. C 80, 034301 (2009) 26Mg observables for the USDA and USDB Hamiltonians NUCLEAR STRUCTURE 26Mg; calculated levels, J, π, half-lives, B(M1), B(E2), B(E4), electron scattering form factors using universal sd-shell interactions A and B (USDA, USDB). Comparison with experimental data. RADIOACTIVITY 26Na(β-); calculated B(GT) using the USDA, USDB, and USD interactions and compared with experimental values.
doi: 10.1103/PhysRevC.80.034301
2008KI13 Nucl.Phys. A807, 119 (2008) Y.J.Kim, K.Amos, S.Karataglidis, W.A.Richter Microscopic model analyses of proton scattering from 12C, 20Ne, 24Mg, 28Si and 40Ca NUCLEAR REACTIONS 12C, 20Ne, 24Mg, 28Si, 40Ca(polarized p, p), (polarized p, p'), E=35-250 MeV; analyzed elastic and inelastic σ, analyzing powers using a g-folding approach and DWBA.
doi: 10.1016/j.nuclphysa.2008.04.006
2008PE13 Phys.Rev. C 77, 064311 (2008) S.M.Perez, W.A.Richter, B.A.Brown, M.Horoi Correlations between magnetic moments and β decays of mirror nuclei NUCLEAR STRUCTURE 11B, 11,13C, 13,15N, 15,17O, 17,19F, 19,21Ne, 21,23Na, 23,25Mg, 25,27Al, 27,29Si, 29,31P, 31,33S, 33,35Cl, 35,37Ar, 37,39K, 39,41Ca, 41,43Sc, 43,45Ti, 45,47V, 47,49Cr, 49,51Mn, 51,53Fe, 53,55Co, 55,57Ni, 57Cu; calculated magnetic moments, β-decay half-lives, gyromagnetic ratios.
doi: 10.1103/PhysRevC.77.064311
2008RI07 Phys.Rev. C 78, 064302 (2008) W.A.Richter, S.Mkhize, B.A.Brown sd-shell observables for the USDA and USDB Hamiltonians NUCLEAR STRUCTURE 23,25Ne, 30,31Na, 27,29,31Mg; calculated magnetic moments. USDA and USDB Shell Model Calculations. Comparison with experimental data.
doi: 10.1103/PhysRevC.78.064302
2006AM01 Phys.Rev.Lett. 96, 032503 (2006) K.Amos, W.A.Richter, S.Karataglidis, B.A.Brown Proton Reaction Cross Sections as Measures of the Spatial Distributions of Neutrons in Exotic Nuclei NUCLEAR STRUCTURE A=28-58; calculated proton and neutron densities, radii; deduced optical model parameters, proton scattering σ. NUCLEAR REACTIONS 40Ar(p, p), E=65 MeV; 58Ni(p, p), E=200 MeV; calculated σ(θ), Ay(θ). Comparison with data.
doi: 10.1103/PhysRevLett.96.032503
2006BR18 Phys.Rev. C 74, 034315 (2006) New "USD" Hamiltonians for the sd shell NUCLEAR STRUCTURE 26Al, 26Mg, 26Na, 26Ne, 26F, 26O; calculated levels, J, π, β-decay properties. Comparison with data.
doi: 10.1103/PhysRevC.74.034315
2006ZE01 Phys.Rev. C 74, 024309 (2006) R.G.T.Zegers, H.Akimune, S.M.Austin, D.Bazin, A.M.van den Berg, G.P.A.Berg, B.A.Brown, J.Brown, A.L.Cole, I.Daito, Y.Fujita, M.Fujiwara, S.Gales, M.N.Harakeh, H.Hashimoto, R.Hayami, G.W.Hitt, M.E.Howard, M.Itoh, J.Janecke, T.Kawabata, K.Kawase, M.Kinoshita, T.Nakamura, K.Nakanishi, S.Nakayama, S.Okumura, W.A.Richter, D.A.Roberts, B.M.Sherrill, Y.Shimbara, M.Steiner, M.Uchida, H.Ueno, T.Yamagata, M.Yosoi The (t, 3He) and (3He, t) reactions as probes of Gamow-Teller strength NUCLEAR REACTIONS 26Mg(t, 3He), E=115 MeV/nucleon; 26Mg(3He, t), E=140 MeV/nucleon; measured σ(E, θ); deduced Gamow-Teller transition strengths. Comparison with model predictions.
doi: 10.1103/PhysRevC.74.024309
2005BL15 Phys.Rev.Lett. 94, 232501 (2005); Erratum Phys.Rev.Lett. 94, 249901 (2005) B.Blank, A.Bey, G.Canchel, C.Dossat, A.Fleury, J.Giovinazzo, I.Matea, N.Adimi, F.De Oliveira, I.Stefan, G.Georgiev, S.Grevy, J.C.Thomas, C.Borcea, D.Cortina, M.Caamano, M.Stanoiu, F.Aksouh, B.A.Brown, F.C.Barker, W.A.Richter First Observation of 54Zn and its Decay by Two-Proton Emission NUCLEAR REACTIONS Ni(58Ni, X), E=74.5 MeV/nucleon; measured fragment yields; deduced evidence for 54Zn. RADIOACTIVITY 54Zn(2p) [from Ni(58Ni, X)]; measured Ep, T1/2, two-proton decay branching ratio. Comparison with model predictions.
doi: 10.1103/PhysRevLett.94.232501
2005BR40 Phys.Rev. C 72, 057301 (2005) Magic numbers in the neutron-rich oxygen isotopes NUCLEAR STRUCTURE 17,18,19,20,21,22,23,24,25,26,27,28O; calculated, analyzed level energies, shell features.
doi: 10.1103/PhysRevC.72.057301
2003BR19 Nucl.Phys. A719, 177c (2003) B.A.Brown, R.Clement, H.Schatz, J.Giansiracusa, W.A.Richter, M.Hjorth-Jensen, K.-L.Kratz, B.Pfeiffer, W.B.Walters Nuclear structure theory for the astrophysical rp-process and r-process NUCLEAR STRUCTURE A=40-80; calculated displacement energies. Z=29-38; calculated one- and two-proton separation energies. 130Cd, 129Ag, 128Pd, 127Rh, 126Ru, 125Tc, 124Mo, 123Nb, 122Zr; calculated level-mixing features, β-decay T1/2.
doi: 10.1016/S0375-9474(03)00914-X
2003CL07 Nucl.Phys. A718, 617c (2003) R.R.C.Clement, W.Benenson, B.A.Brown, W.A.Richter, H.Schatz, B.M.Sherrill, A.Volya Sensitivities of rp-process calculations to nuclear mass uncertainties
doi: 10.1016/S0375-9474(03)00903-5
2003RI02 Phys.Rev. C 67, 034317 (2003) Nuclear charge densities with the Skyrme Hartree-Fock method NUCLEAR STRUCTURE 12C, 15N, 16O, 27Al, 28,29,30Si, 31P, 32,34,36S, 40Ar, 40,48Ca, 48,50Ti, 50,52,54Cr, 54,56,58Fe, 59Co, 58,60,62,64Ni, 63,65Cu, 88Sr, 90Zr, 92Mo, 204Hg, 208Pb; calculated charge density distributions, radii. Skyrme-Hartree-Fock approach, comparisons with electron scattering data.
doi: 10.1103/PhysRevC.67.034317
2002BR01 Phys.Rev. C65, 014612 (2002) B.A.Brown, S.Typel, W.A.Richter Interaction Cross Sections for Light Neutron-Rich Nuclei NUCLEAR REACTIONS 12C(α, X), (6He, X), (8He, X), (6Li, X), (7Li, X), (8Li, X), (9Li, X), (11Li, X), (7Be, X), (8Be, X), (9Be, X), (10Be, X), (11Be, X), (12Be, X), (14Be, X), (8B, X), (10B, X), (11B, X), (12B, X), (13B, X), (14B, X), (15B, X), (17B, X), (19B, X), (9C, X), (10C, X), (11C, X), (12C, X), (13C, X), (14C, X), (15C, X), (16C, X), (17C, X), (18C, X), (19C, X), (20C, X), (12N, X), (13N, X), (14N, X), (15N, X), (16N, X), (17N, X), (18N, X), (19N, X), (20N, X), (21N, X), (22N, X), (23N, X), (13O, X), (14O, X), (15O, X), (16O, X), (17O, X), (18O, X), (19O, X), (20O, X), (21O, X), (22O, X), (23O, X), (24O, X), (17F, X), (18F, X), (19F, X), (20F, X), (21F, X), (22F, X), (23F, X), (24F, X), (25F, X), (26F, X), (17Ne, X), (18Ne, X), (19Ne, X), (20Ne, X), (21Ne, X), (22Ne, X), (23Ne, X), (24Ne, X), (25Ne, X), (26Ne, X), (27Ne, X), (28Ne, X), (29Ne, X), (20Na, X), (21Na, X), (22Na, X), (23Na, X), (24Na, X), (25Na, X), (26Na, X), (27Na, X), (28Na, X), (29Na, X), (30Na, X), (31Na, X), (32Na, X), (20Mg, X), (21Mg, X), (22Mg, X), (23Mg, X), (24Mg, X), (25Mg, X), (26Mg, X), (27Mg, X), (28Mg, X), (29Mg, X), (30Mg, X), (31Mg, X), (32Mg, X), E not given; calculated interaction σ. Glauber model, comparison with data.
doi: 10.1103/PhysRevC.65.014612
2002BR15 Phys.Rev. C65, 045802 (2002) B.A.Brown, R.R.C.Clement, H.Schatz, A.Volya, W.A.Richter Proton Drip-Line Calculations and the rp Process NUCLEAR STRUCTURE A=41-75; calculated one- and two-proton separation energies for proton-rich isotopes. Implications for astrophysical rp process discussed.
doi: 10.1103/PhysRevC.65.045802
2000BR29 Phys.Lett. 483B, 49 (2000) B.A.Brown, W.A.Richter, R.Lindsay Displacement Energies with the Skyrme Hartree-Fock Method NUCLEAR STRUCTURE A=7-60; calculated binding and Coulomb displacement energies. Comparison with data, discussion of Nolen-Schiffer anomaly.
doi: 10.1016/S0370-2693(00)00589-X
2000CO29 Phys.Rev. C62, 064605 (2000) A.A.Cowley, G.F.Steyn, S.S.Dimitrova, P.E.Hodgson, G.J.Arendse, S.V.Fortsch, G.C.Hillhouse, J.J.Lawrie, R.Neveling, W.A.Richter, J.A.Stander, S.M.Wyngaardt Multistep Direct Mechanism in the (p(pol), 3He) Inclusive Reaction on 59Co and 93Nb at an Incident Energy of 100 MeV NUCLEAR REACTIONS 59Co, 93Nb(polarized p, 3He), E=100 MeV; measured σ(E, θ), Ay(θ); deduced one-step, multistep process contributions, other reaction mechanism features. Comparison with model predictions.
doi: 10.1103/PhysRevC.62.064605
1999CH50 Nucl.Phys. (Supplement) A654, 1051c (1999) M.B.Chadwick, D.T.L.Jones, G.J.Arendse, A.A.Cowley, W.A.Richter, J.J.Lawrie, R.T.Newman, J.V.Pilcher, F.D.Smit, G.F.Steyn, J.W.Koen, J.A.Stander Nuclear Interaction Cross Sections for Proton Radiotherapy NUCLEAR REACTIONS 12C(p, pX), (p, dX), E=150 MeV; 16O(p, αX), (p, tX), E=200 MeV; measured σ(E, θ). 12C, 16O(p, pX), E=200 MeV; calculated proton spectra, σ(θ). 16O(p, X)7Li/7Be/9Be/10Be/10B/11B/10C/11C/14C/13N/14O/15O, E ≈ 5-250 MeV; calculated production σ.
doi: 10.1016/S0375-9474(00)88598-X
1998BR30 Phys.Rev. C58, 2099 (1998) Shell-Model Plus Hartree-Fock Calculations for the Neutron-Rich Ca Isotopes NUCLEAR STRUCTURE 47,48,49,50,51,52,53,54,55,56,57,58,59,60Ca; calculated binding energies, levels, J, π. 48Ca calculated electron scattering form factors. Shell model plus Hartree-Fock approach.
doi: 10.1103/PhysRevC.58.2099
1997CO05 Phys.Rev. C55, 1843 (1997) A.A.Cowley, G.J.Arendse, G.F.Steyn, J.A.Stander, W.A.Richter, S.S.Dimitrova, P.Demetriou, P.E.Hodgson Inclusive (p, 3He) Reactions on 59Co and 197Au at Incident Energies of 120, 160, and 200 MeV NUCLEAR REACTIONS 59Co, 197Au(p, 3He), E=120, 160, 200 MeV; measured σ(θ) vs E; deduced multi-step mechanisms role. Statistical multi-step direct reaction theory.
doi: 10.1103/PhysRevC.55.1843
1996BR15 Phys.Rev. C54, 673 (1996) Neutron Halos in the Na Isotopes NUCLEAR STRUCTURE 20,21,22,23,24,25,26,27,28,29,30,31,32Na; calculated nucleon rms radii, higher mass isotopes included out to drip lines; deduced intruder states role, neutron drip line prediction related features. Spherical Hartree-Fock model, different density-dependent Skyrme interactions.
doi: 10.1103/PhysRevC.54.673
1996CO12 Phys.Rev. C54, 778 (1996) A.A.Cowley, G.J.Arendse, J.W.Koen, W.A.Richter, J.A.Stander, G.F.Steyn, P.Demetriou, P.E.Hodgson, Y.Watanabe Inclusive (p, α) Reactions on 27Al, 59Co, and 197Au at Incident Energies of 120, 160, and 200 MeV NUCLEAR REACTIONS 27Al, 59Co, 197Au(p, α), E=120, 160, 200 MeV; measured σ(Eα, θ); deduced higher-step contributions role. Multi-step DWBA analysis.
doi: 10.1103/PhysRevC.54.778
1996NE05 Phys.Rev. C54, 1773 (1996); Erratum Phys.Rev. C55, 1605 (1997) R.T.Newman, R.W.Fearick, S.M.Perez, D.G.Aschman, K.Bharuth-Ram, W.A.Richter, F.D.Smit, V.M.Tshivhase, T.S.Volkwyn 0f7/2 Proton Transfer on 55Mn NUCLEAR REACTIONS 55Mn(d, 3He), (d, d), E=46 MeV; measured σ(θ); deduced opptical model parameters. 54Cr deduced levels, J, spectroscopic factors. 55Mn(α, t), E not given; analyzed data. 56Fe levels deduced spins, spectroscopic factors. Spectroscopic sum rules analysis.
doi: 10.1103/PhysRevC.54.1773
1996RI11 Phys.Rev. C54, 1756 (1996) W.A.Richter, S.W.Steyn, A.A.Cowley, J.A.Stander, J.W.Koen, R.Lindsay, G.C.Hillhouse, R.E.Julies, J.J.Lawrie, J.V.Pilcher, P.E.Hodgson Inclusive (p, p') Reactions on Nuclei in the Mass Range 115 to 181 at Incident Energies from 120 to 200 MeV NUCLEAR REACTIONS 115In, 167Er, 173Yb, 181Ta(p, p'X), E=120, 150, 175, 200 MeV; 141Pr(p, p'X), E=120, 200 MeV; measured inclusive σ(E, θ); deduced reaction mechanism. Statistical multistep direct theory analysis.
doi: 10.1103/PhysRevC.54.1756
1995CO25 Phys.Lett. 359B, 300 (1995) A.A.Cowley, G.J.Arendse, J.A.Stander, W.A.Richter Distortion in Proton-Knockout Reactions NUCLEAR REACTIONS 208Pb(p, 2p), E=204 MeV; measured yield vs total energy, σ(θ, Ep). 208Pb deduced proton knock-out spectroscopic factors.
doi: 10.1016/0370-2693(95)01028-O
1995RI05 Nucl.Phys. A586, 445 (1995); Erratum Nucl.Phys. A596, 716 (1996) W.A.Richter, M.G.Van der Merwe, B.Brown Shell-Model Calculations for Neutron-Rich Nuclei in the 0f1p Shell NUCLEAR STRUCTURE 51,52,53,54,55,56,57,58,59,60Ca, 52,53,54,55,56,57,58,59,60,61Sc, 54,55,56,57,58,59,60,61,62Ti, 59,60,61,62,63V, 58,60,61,62,63,64Cr, 62,63,64,65Mn, 63,64,65,66Fe; calculated binding energies, mass defects. 51,50,52Ca, 52,53Ti, 51,52Sc; calculated levels. Shell model, empirical effective interaction.
doi: 10.1016/0375-9474(94)00802-T
1994RI01 Phys.Rev. C49, 1001 (1994) W.A.Richter, A.A.Cowley, G.C.Hillhouse, J.A.Stander, J.W.Koen, S.W.Steyn, R.Lindsay, R.E.Julies, J.J.Lawrie, J.V.Pilcher, P.E.Hodgson Preequilibrium (p, p') Measurements and Calculations for 90Zr and Neighboring Nuclei for Incident Energies up to 200 MeV NUCLEAR REACTIONS 89Y, 90Zr, 92,94,96,98Mo(p, p'), E=120, 160, 200 MeV; measured inclusive σ(E, θ); deduced reaction mechanism. Statistical multi-step, direct theory analysis.
doi: 10.1103/PhysRevC.49.1001
1994RI08 Nucl.Phys. A577, 585 (1994) W.A.Richter, M.G.Van der Merwe, R.E.Julies, B.A.Brown Tests and Predictions of New Effective Interactions in the 0f1p Shell NUCLEAR STRUCTURE 42,44,45,43Sc, 41,42,43,44,45,46,47,48,49Ca, 44,45Ti; calculated nucleon transfer spectroscopic factors in some cases, B(λ). New effective interaction.
doi: 10.1016/0375-9474(94)90934-2
1994VA26 Nucl.Phys. A579, 173 (1994) M.G.van der Merwe, W.A.Richter, B.A.Brown Effective Interactions for A = 41-66 Nuclei NUCLEAR STRUCTURE 49,52Ca, 51V, 52Sc, 52Ti, 53Mn, 56Fe; calculated levels. 41,42,43,44,45,47,49,51Ca, 41,43,44,45,46,47,48,49,50,51,52Sc, 45,46,47,48,49,50,51Ti, 46,47,48,49,50,51,52,53V, 51,52,53,54Cr, 51,52,53,54,55Mn, 53,54,55,56Fe, 55,56,57,58Co, 57,58,59,60,61,62,63,65Ni, 58,59,60Cu; calculated μ, electric quadrupole moments. Shell model, effective interactions.
doi: 10.1016/0375-9474(94)90800-1
1993OL05 Z.Phys. A347, 99 (1993) L.D.Olivier, W.A.Richter, J.A.Stander, J.W.Koen Properties of Levels in 22Ne NUCLEAR REACTIONS 19F(α, pγ), E=12 MeV; measured γp-coin. 22Ne deduced levels, T1/2, J, π, δ, γ branching ratios, B(λ). Shell model comparison.
doi: 10.1007/BF01284676
1992RI06 Phys.Rev. C46, 1030 (1992) W.A.Richter, A.A.Cowley, R.Lindsay, J.J.Lawrie, S.V.Fortsch, J.V.Pilcher, R.Bonetti, P.E.Hodgson Statistical Multistep Direct Calculations for (p, p') Continuum Spectra up to 200 MeV NUCLEAR REACTIONS 100Mo(p, p'), E=100-200 MeV; measured σ(θ, Ep'). 58Ni, 197Au(p, p'), E=100-200 MeV; analyzed σ(θ, Ep'). Statistical multi-step direct theory.
doi: 10.1103/PhysRevC.46.1030
1991CO03 Phys.Rev. C43, 678 (1991) A.A.Cowley, A.van Kent, J.J.Lawrie, S.V.Fortsch, D.M.Whittal, J.V.Pilcher, F.D.Smit, W.A.Richter, R.Lindsay, I.J.van Heerden, R.Bonetti, P.E.Hodgson Preequilibrium Proton Emission Induced by 80 and 120 MeV Protons Incident on 90Zr NUCLEAR REACTIONS 90Zr(p, p'), E=80, 120 MeV; measured σ(Ep', θp'); deduced reaction mechanism, effective interaction strength. Phenomenological parametrization.
doi: 10.1103/PhysRevC.43.678
1991RI04 Nucl.Phys. A523, 325 (1991) W.A.Richter, M.G.Van Der Merwe, R.E.Julies, B.A.Brown New Effective Interactions for the 0f1p Shell NUCLEAR STRUCTURE 43,45,48,49,47,41Ca, 43,44,45Sc, 45Ti; calculated levels, μ, quadrupole moment. Shell model, new effective interactions.
doi: 10.1016/0375-9474(91)90007-S
1990ZH07 Phys.Rev. C42, 1120 (1990) L.Zhao, B.A.Brown, W.A.Richter Shell-Model Calculation for Two-Neutrino Double Beta Decay of 48Ca RADIOACTIVITY 48Ca(2β); calculated decay T1/2. 48Ca, 48Ti; calculated Gamow-Teller transition strength. Large basis shell model.
doi: 10.1103/PhysRevC.42.1120
1988BR11 Ann.Phys.(New York) 182, 191 (1988) B.A.Brown, W.A.Richter, R.E.Julies, B.H.Wildenthal Semi-Empirical Effective Interactions for the 1s-0d Shell NUCLEAR STRUCTURE A=17-39; analyzed binding energy data; deduced density dependent two-body potential parameters.
doi: 10.1016/0003-4916(88)90013-9
1988ST06 Phys.Rev. C37, 2220 (1988) J.Stevenson, B.A.Brown, Y.Chen, J.Clayton, E.Kashy, D.Mikolas, J.Nolen, M.Samuel, B.Sherrill, J.S.Winfield, Z.Q.Xie, R.E.Julies, W.A.Richter Search for the Exotic Nucleus 10He NUCLEAR REACTIONS Sn(18O, X), E=30 MeV/nucleon; measured fragment mass spectra; deduced 10He production upper limit. NUCLEAR STRUCTURE 4,5,6,7,8,9,10He; calculated binding energy. Shell model.
doi: 10.1103/PhysRevC.37.2220
1987FR09 Z.Phys. A327, 469 (1987) S.Froneman, W.J.Naude, W.A.Richter, J.A.Stander, J.W.Koen Nuclear Levels in 43Sc at Low Excitation Energies NUCLEAR REACTIONS 40Ca(α, p), (α, pγ), E=12 MeV; measured Eγ, Iγ, pγ-coin. 43Sc deduced level energies, J, π, γ-branching ratios, mean T1/2, δ. ΔE-E telescope, Ge(Li) detector. Shell model calculations.
1980BR21 Phys.Rev.Lett. 45, 1681 (1980) B.A.Brown, W.A.Richter, N.S.Godwin Nuclear-Structure Effects on Parity Nonconservation in Light Nuclei NUCLEAR STRUCTURE 10B, 16O, 18,19F, 20,21Ne; calculated parity nonconserving matrix elements. Nucleon-nucleon parity nonconserving potentials, microscopic shell model.
doi: 10.1103/PhysRevLett.45.1681
1980RI06 Z.Phys. A297, 343 (1980) Non-Normal Parity States in Mass 10-15 Nuclei NUCLEAR STRUCTURE A=10-15; calculated unnatural parity levels, S, β-decay T1/2, Γγ, B(E2), B(M1). Shell model, modified surface delta interaction.
doi: 10.1007/BF01422795
1977RI08 Z.Phys. A282, 207 (1977) The Calculation of Log ft Values and Spectroscopic Factors for Nuclei In the Mass Range 10-15 RADIOACTIVITY 15,10,11,13,14C, 12,13B, 12,13N, 13,14,15O; calculated log ft, S.
doi: 10.1007/BF01408165
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