NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = A.L.Keksis Found 23 matches. 2016DE30 Phys.Rev. C 94, 054612 (2016) D.Denis-Petit, O.Roig, V.Meot, B.Morillon, P.Romain, M.Jandel, T.Kawano, D.J.Vieira, E.M.Bond, T.A.Bredeweg, A.J.Couture, R.C.Haight, A.L.Keksis, R.S.Rundberg, J.L.Ullmann Isomeric ratio measurements for the radiative neutron capture 176Lu(n, γ) at the LANL DANCE facility NUCLEAR REACTIONS 176Lu(n, γ), E=8.5 eV-100 keV; measured Eγ, Iγ, delayed γ spectra using DANCE array at the LANSCE-LANL facility; deduced isomeric ratios to the 5/2-, 761.7 keV and 15/2+, 1356.9 keV nanosecond isomers in 177Lu. Comparison with TALYS calculations using different models for photon strength functions, level densities, and optical potentials.
doi: 10.1103/PhysRevC.94.054612
2016RO08 Phys.Rev. C 93, 034602 (2016) O.Roig, M.Jandel, V.Meot, E.M.Bond, T.A.Bredeweg, A.J.Couture, R.C.Haight, A.L.Keksis, R.S.Rundberg, J.L.Ullmann, D.J.Vieira Radiative neutron capture cross sections on 176Lu at DANCE NUCLEAR REACTIONS 176Lu(n, γ), E=0.02-100 keV; measured Eγ, Iγ, neutron flux, σ(E) using 4π BaF2 array DANCE at LANSCE-LANL; deduced radiative capture yield as function of neutron energy, resonances from 0.138-906 eV, J, Γγ and Γn versus neutron energy, resonance parameters using R-matrix analysis with SAMMY-7.0 code, Maxwellian averaged cross sections (MACS) in a stellar plasma for thermal energies between 5-100 keV. Comparison with theoretical calculations and evaluations in Atlas of Neutron resonances (2006), ENSDF/B-VII.1, JEFF-3.2, BRC and KADoNiS databases, and with previous experimental data.
doi: 10.1103/PhysRevC.93.034602
2014KR08 Nucl.Data Sheets 119, 158 (2014) J.Kroll, U.Agvaanluvsan, B.Baramsai, J.A.Becker, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, G.E.Mitchell, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, S.Valenta, D.J.Vieira, C.L.Walker, J.B.Wilhelmy, J.M.Wouters, C.Y.Wu Systematics of Scissors Mode in Gd Nuclei from Experiments with the DANCE Detector NUCLEAR REACTIONS 152,154,155,156,157,158Gd(n, γ), E=subthermal-1 MeV; measured Eγ, Iγ using ToF LANSCE/DANCE array (BaF2); calculated γ emission, γ cascades using MSC code DICEBOX with fitted parameters and all models of RIPL-3; deduced M1 scissors mode vibrations; calculated scissors mode B(M1) vs deformation for (n, γ), (γ, γ') and 3He-induced reactions data.
doi: 10.1016/j.nds.2014.08.044
2014ST04 J.Phys.(London) G41, 025108 (2014) B.C.Stein, A.Bonasera, G.A.Souliotis, H.Zheng, P.J.Cammarata, A.J.Echeverria, L.Heilborn, A.L.Keksis, Z.Kohley, J.Mabiala, P.Marini, L.W.May, A.B.McIntosh, C.Richers, D.V.Shetty, S.N.Soisson, R.Tripathi, S.Wuenschel, S.J.Yennello Quantum suppression of fluctuations and temperatures of reconstructed A ∼ 30 quasi-projectiles NUCLEAR REACTIONS 112Sn(32S, X)1H/3H/3He, E=45 MeV/nucleon; measured reaction products, Ep, Ip; deduced fragment multiplicities, proton temperature, energy density, supression of multiplicity fluctuations. Comparison with available data.
doi: 10.1088/0954-3899/41/2/025108
2013BA15 Phys.Rev. C 87, 044609 (2013) B.Baramsai, J.Kroll, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, C.L.Walker Photon strength functions of 156Gd from radiative capture of resonance neutrons NUCLEAR REACTIONS 155Gd(n, γ), E=7.8, 21.0 eV; measured Eγ, Iγ, sum energy spectra, cluster multiplicity of γ cascades using DANCE γ-ray calorimeter at LANSCE facility; deduced spectra of multistep γ cascades (MSCs) and those of gated MSCs, E1 and M1 photon strength functions, scissors mode. DICEBOX algorithm. Validity of various photon strength functions (PSF), and nuclear level density (NLD) models Comparison with previous experimental studies, and with theoretical calculations.
doi: 10.1103/PhysRevC.87.044609
2013KR11 Phys.Rev. C 88, 034317 (2013) J.Kroll, B.Baramsai, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, S.Valenta, D.J.Vieira, C.Walker, C.Y.Wu Strength of the scissors mode in odd-mass Gd isotopes from the radiative capture of resonance neutrons NUCLEAR REACTIONS 152,154,156,158Gd(n, γ), E<1 MeV white neutron spectrum; measured multistep cascade (MSC) γ spectra for different multiplicities and several resolved s-wave resonances using DANCE array at LANSCE, LANL facility; deduced E1 and M1 photon strength functions, level density. GEANT4-based simulations. Comparison with several model calculations of photon strength functions (PSF) and nuclear level densities (NLD) for deformed nuclei, and with experimental data from other reactions. Discussed scissors mode in odd-A Gd isotopes from summed reduced M1 strengths. Evidence of odd-even effect in strength of scissors mode.
doi: 10.1103/PhysRevC.88.034317
2012BA07 Phys.Rev. C 85, 024622 (2012) B.Baramsai, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, C.L.Walker Neutron resonance parameters in 155Gd measured with the DANCE γ-ray calorimeter array NUCLEAR REACTIONS 155Gd(n, γ), E=1.36-185 eV; measured neutron spectra by time-of-flight, E(n), I(n), Eγ, sum-energy spectra, average γ-ray multiplicity of s-wave resonances, cross sections using DANCE calorimeter at LANSC. 156Gd; deduced resonances, spins by various methods, resonance parameters, s-wave level density, normalized yields for J=1 and J=2 resonances, neutron and radiative width, Sammy fit of experimental cross sections. Comparison with previous studies, and ENDF/B-VII.0, JENDL-4.0, JEFF-3.1, ROSFOND-2010 libraries.
doi: 10.1103/PhysRevC.85.024622
2012SO16 J.Phys.(London) G39, 115104 (2012) S.N.Soisson, A.Botvina, G.A.Souliotis, B.C.Stein, L.Heilborn, A.L.Keksis, Z.Kohley, L.W.May, D.V.Shetty, S.Wuenschel, S.J.Yennello Multifragmentation of reconstructed quasi-projectiles in the mass region A ∼ 30 NUCLEAR REACTIONS 112Sn(32S, X), E=45 MeV/nucleon; analyzed available data; calculated charge and mass distribution of fragments, N/Z, yield ratios. Statistical multifragmentation model, comparison with available data.
doi: 10.1088/0954-3899/39/11/115104
2011UL01 J.Korean Phys.Soc. 59, 1406s (2011) J.L.Ullmann, A.J.Couture, A.L.Keksis, D.J.Vieira, J.M.O'Donnell, J.M.Wouters, M.Jandel, R.C.Haight, R.S.Rundberg, T.A.Bredeweg, T.Kawano, C.Y.Wu, J.A.Becker, A.Chyzh, B.Baramsai, G.E.Mitchell, M.Krticka Measurement of the 238U Neutron-capture Cross Section and Gamma-emission Spectra from 10 eV to 100 keV Using the DANCE Detector at LANSCE NUCLEAR REACTIONS 238U(n, γ), E=10 eV-100 keV; measured Eγ, Iγ, γγ-coin using DANCE at LANSCE; deduced σ, γ multiplicity, 36 eV resonance σ(Eγ); calculated γ multiplicity, σ(Eγ) using DICEBOX code.
doi: 10.3938/jkps.59.1406
2010CH41 Nucl.Data Sheets 111, 2923 (2010) M.B.Chadwick, T.Kawano, D.W.Barr, M.R.Mac Innes, A.C.Kahler, T.Graves, H.Selby, C.J.Burns, W.C.Inkret, A.L.Keksis, J.P.Lestone, A.J.Sierk, P.Talou Fission Product Yields from Fission Spectrum n+239Pu for ENDF/B-VII.1 NUCLEAR REACTIONS 239Pu(n, F)99Mo/95Zr/140Ba/144Ce/147Nd, E=0.2-2 MeV; measured fission products; deduced fission product yields and its energy dependence. Comparison with ENDF/B-VII.0 library, LANL-ILRR measurements.
doi: 10.1016/j.nds.2010.11.003
2010GA13 Nucl.Phys. A837, 145 (2010) S.Galanopoulos, G.A.Souliotis, A.L.Keksis, M.Veselsky, Z.Kohley, L.W.May, D.V.Shetty, S.N.Soisson, B.C.Stein, S.Wuenschel, S.J.Yennello Isoscaling of mass A ≈ 40 reconstructed quasiprojectiles from collisions in the Fermi energy regime NUCLEAR REACTIONS 112,124Sn(40Ar, X), (40Ca, X), E=45 MeV/nucleon; measured light fragment yields, energy spectra, (fragment)(fragment)-coin using FAUST array; analyzed isoscaling behaviour versus neutron number and excitation energy, including correction for neutron loss.
doi: 10.1016/j.nuclphysa.2010.01.248
2010KE03 Phys.Rev. C 81, 054602 (2010) A.L.Keksis, L.W.May, G.A.Souliotis, M.Veselsky, S.Galanopoulos, Z.Kohley, D.V.Shetty, S.N.Soisson, B.C.Stein, R.Tripathi, S.Wuenschel, S.J.Yennello, B.A.Li Experimental studies of N/Z equilibration in peripheral collisions using fragment yield ratios NUCLEAR REACTIONS 112Sn, 124Sn(40Ca, X), 112Sn, 124Sn(48Ca, X), E=32 MeV; measured fragment spectra; deduced quasiprojectile N/Z ratio. Comparison with deep-inelastic transfer (DIT) code, statistical multifragmentation model (SMM), and isospin-dependent Boltzmann-Uehling-Uhlenbeck (IBUU) microscopic transport model.
doi: 10.1103/PhysRevC.81.054602
2010SE15 Nucl.Data Sheets 111, 2891 (2010) H.D.Selby, M.R.Mac Innes, D.W.Barr, A.L.Keksis, R.A.Meade, C.J.Burns, M.B.Chadwick, T.C.Wallstrom Fission Product Data Measured at Los Alamos for Fission Spectrum and Thermal Neutrons on 239Pu, 235U, 238U NUCLEAR REACTIONS 235,238U, 239Pu(n, F)99Mo/95Zr/137Cs/140Ba/141,143Ce/147Nd, E=0.4-1.9 MeV; measured fission products; deduced fission product yields. Comparison with ENDF/B-VII.0 library, BIG TEN critical assembly.
doi: 10.1016/j.nds.2010.11.002
2010VE02 Nucl.Phys. A837, 163 (2010) M.Veselsky, G.A.Souliotis, A.L.Keksis, M.Jandel, D.V.Shetty, S.J.Yennello, K.Wang, Y.G.Ma Statistical and dynamical aspects in the decay of hot neutron-rich nuclei NUCLEAR REACTIONS 27Al(40Ca, X), (48Ca, X), E=45 MeV/nucleon; measured projectile-like fragment charge and mass distributions, light-particle velocity distributions and composite system excitation energies for incomplete fusion using FAUST array; deduced thermodynamical properties, isoscaling, effect of missing neutrons.
doi: 10.1016/j.nuclphysa.2010.02.013
2010VE05 Int.J.Mod.Phys. E19, 1559 (2010) M.Veselsky, G.A.Souliotis, A.L.Keksis, D.V.Shetty, M.Jandel, S.J.Yennello, K.Wang, Y.G.Ma Statistical and dynamical aspects in the decay of hot neutron-rich nuclei
doi: 10.1142/S0218301310015965
2009SO05 Nucl.Instrum.Methods Phys.Res. B266, 4692 (2009) G.A.Souliotis, B.Stein, M.Veselsky, S.Galanopoulos, A.L.Keksis, Z.Kohley, D.V.Shetty, S.N.Soisson, S.Wuenschel, S.J.Yennello Neutron-rich rare isotope production in the Fermi energy domain and application to the Texas A and M radioactive beam upgrade
doi: 10.1016/j.nimb.2008.05.118
2007SO02 Phys.Rev. C 75, 011601 (2007) G.A.Souliotis, A.S.Botvina, D.V.Shetty, A.L.Keksis, M.Jandel, M.Veselsky, S.J.Yennello Tracing the evolution of the symmetry energy of hot nuclear fragments from the compound nucleus towards multifragmentation NUCLEAR REACTIONS 64Ni(64Ni, X), 64Ni, 124Sn, 208Pb(86Kr, X), E=25 MeV/nucleon; analyzed fragments isotopic yields, mass distributions; deduced symmetry energy features.
doi: 10.1103/PhysRevC.75.011601
2007SO12 Nucl.Instrum.Methods Phys.Res. B261, 996 (2007) G.A.Souliotis, A.S.Botvina, D.V.Shetty, A.L.Keksis, M.Jandel, M.Veselsky, S.J.Yennello Properties of hot nuclear fragments formed in multifragmentation and their astrophysical implications NUCLEAR REACTIONS 64Ni, 124Sn, 208Pb(86Kr, X), 64Ni(64Ni, X), E=25 MeV/nucleon; measured fragment energies and time of flight. Deduced fragmentation cross sections.
doi: 10.1016/j.nimb.2007.04.185
2007SO19 Nucl.Instrum.Methods Phys.Res. B261, 1094 (2007) G.A.Souliotis, A.L.Keksis, B.C.Stein, M.Veselsky, M.Jandel, D.V.Shetty, S.N.Soisson, S.Wuenschel, S.J.Yennello Rare isotope production in the Fermi energy regime and application to the Texas A
doi: 10.1016/j.nimb.2007.04.184
2006IG02 Phys.Rev. C 74, 024605 (2006) J.Iglio, D.V.Shetty, S.J.Yennello, G.A.Souliotis, M.Jandel, A.L.Keksis, S.N.Soisson, B.C.Stein, S.Wuenschel, A.S.Botvina Symmetry energy and the isoscaling properties of the fragments produced in 40Ar, 40Ca + 58Fe, 58Ni reactions at 25, 33, 45, and 53 MeV/nucleon NUCLEAR REACTIONS 58Ni, 58Fe(40Ar, X), (40Ca, X), E=25, 33, 45, 53 MeV/nucleon; measured fragments isotopic yields; deduced symmetry energies, isoscaling properties. Statistical multifragmentation model.
doi: 10.1103/PhysRevC.74.024605
2006JA20 Phys.Rev. C 74, 054608 (2006) M.Jandel, S.Wuenschel, D.V.Shetty, G.A.Souliotis, A.L.Keksis, S.J.Yennello, M.Veselsky Signatures of critical behavior in the multifragmentation of nuclei with charge Z = 12-15 and the N/Z dependence NUCLEAR REACTIONS 112,124Sn(28Si, X), E=30, 50 MeV/nucleon; measured projectile-like fragments charge and mass distributions, excitation energies; deduced power-law parameters.
doi: 10.1103/PhysRevC.74.054608
2006TH11 Phys.Rev. C 74, 051602 (2006) D.Theriault, J.Gauthier, F.Grenier, F.Moisan, C.St-Pierre, R.Roy, B.Davin, S.Hudan, T.Paduszynski, R.T.de Souza, E.Bell, J.Garey, J.Iglio, A.L.Keksis, S.Parketon, C.Richers, D.V.Shetty, S.N.Soisson, G.A.Souliotis, B.C.Stein, S.J.Yennello Neutron-to-proton ratios of quasiprojectile and midrapidity emission in the 64Zn + 64Zn reaction at 45 MeV/nucleon NUCLEAR REACTIONS 64Zn(64Zn, X), E=45 MeV/nucleon; measured charged particle and neutron spectra, σ(Eθ); deduced rapidity dependence of neutron-to-proton ratios, related features.
doi: 10.1103/PhysRevC.74.051602
2005PA77 Nucl.Instrum.Methods Phys.Res. A547, 464 (2005) T.Paduszynski, P.Sprunger, R.T.de Souza, S.Hudan, A.Alexander, B.Davin, G.Fleener, A.Mcintosh, C.Metelko, R.Moore, N.Peters, J.Poehlman, J.Gauthier, F.Grenier, R.Roy, D.Theriault, E.Bell, J.Garey, J.Iglio, A.L.Keksis, S.Parketon, C.Richers, D.V.Shetty, S.N.Soisson, G.A.Souliotis, B.Stein, S.J.Yennello Resolving multiple particles in a highly segmented silicon array NUCLEAR REACTIONS 64Zn(64Zn, X), E = 45 MeV/nucleon; measured charge particle multiplicity distributions.
doi: 10.1016/j.nima.2005.04.011
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