NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = J.M.Alexander Found 129 matches. Showing 1 to 100. [Next]2014LA05 Phys.Rev.Lett. 112, 082302 (2014) R.A.Lacey, A.Taranenko, J.Jia, D.Reynolds, N.N.Ajitanand, J.M.Alexander, Y.Gu, A.Mwai Beam Energy Dependence of the Viscous Damping of Anisotropic Flow in Relativistic Heavy Ion Collisions
doi: 10.1103/PhysRevLett.112.082302
2011AJ01 Phys.Rev. C 83, 011901 (2011) N.N.Ajitanand, R.A.Lacey, A.Taranenko, J.M.Alexander New method for the experimental study of topological effects in the quark-gluon plasma
doi: 10.1103/PhysRevC.83.011901
2011LA03 Phys.Rev. C 83, 031901 (2011) R.A.Lacey, A.Taranenko, N.N.Ajitanand, J.M.Alexander Initial indications for the production of a strongly coupled plasma in Pb+Pb collisions at √ sNN=2.76 TeV
doi: 10.1103/PhysRevC.83.031901
2011LA07 Phys.Rev. C 83, 044902 (2011) R.A.Lacey, R.Wei, J.Jia, N.N.Ajitanand, J.M.Alexander, A.Taranenko Initial eccentricity fluctuations and their relation to higher-order flow harmonics
doi: 10.1103/PhysRevC.83.044902
2011LA12 Phys.Rev. C 84, 027901 (2011) R.A.Lacey, R.Wei, N.N.Ajitanand, J.M.Alexander, J.Jia, A.Taranenko Glauber-based evaluations of the odd moments of the initial eccentricity relative to the even order participant planes
doi: 10.1103/PhysRevC.84.027901
2010LA03 Phys.Rev. C 81, 061901 (2010) R.A.Lacey, R.Wei, N.N.Ajitanand, J.M.Alexander, X.Gong, J.Jia, A.Taranenko, R.Pak, H.Stocker Constraints on models for the initial collision geometry in ultrarelativistic heavy ion collisions
doi: 10.1103/PhysRevC.81.061901
2010LA13 Phys.Rev. C 82, 034910 (2010) R.A.Lacey, A.Taranenko, R.Wei, N.N.Ajitanand, J.M.Alexander, J.Jia, R.Pak, D.H.Rischke, D.Teaney, K.Dusling Azimuthal anisotropy: Transition from hydrodynamic flow to jet suppression
doi: 10.1103/PhysRevC.82.034910
2009LA19 Phys.Rev.Lett. 103, 142302 (2009) R.A.Lacey, R.Wei, N.N.Ajitanand, J.M.Alexander, X.Gong, J.Jia, A.Mawi, S.Mohapatra, D.Reynolds, S.Salnikov, A.Taranenko Energy Loss for Heavy Quarks in Relation to Light Partons: Is Radiative Energy Loss for Heavy Quarks Anomalous?
doi: 10.1103/PhysRevLett.103.142302
2009LA29 Phys.Rev. C 80, 051901 (2009) R.A.Lacey, N.N.Ajitanand, J.M.Alexander, X.Gong, J.Jia, A.Taranenko, R.Wei Scaling patterns of the suppression of π0 yields in Au+Au collisions at √ sNN = 200 GeV: Links to the transport properties of the QGP
doi: 10.1103/PhysRevC.80.051901
2008CS02 Eur.Phys.J. A 38, 363 (2008) M.Csanad, T.Csorgo, A.Ster, B.Lorstad, N.N.Ajitanand, J.M.Alexander, P.Chung, W.G.Holzmann, M.Issah, R.A.Lacey Universal scaling of the elliptic flow data at RHIC
doi: 10.1140/epja/i2008-10681-7
2007LA05 Phys.Rev.Lett. 98, 092301 (2007) R.A.Lacey, N.N.Ajitanand, J.M.Alexander, P.Chung, W.G.Holzmann, M.Issah, A.Taranenko, P.Danielewicz, H.Stocker Has the QCD Critical Point Been Signaled by Observations at the BNL Relativistic Heavy Ion Collider? NUCLEAR REACTIONS 197Au(197Au, X), E(cm)=200 GeV/nucleon; analyzed elliptic flow, related data; deduced shear viscosity to entropy ratio, possible QCD critical point.
doi: 10.1103/PhysRevLett.98.092301
2005AJ01 Phys.Rev. C 72, 011902 (2005) N.N.Ajitanand, J.M.Alexander, P.Chung, W.G.Holzmann, M.Issah, R.A.Lacey, A.Shevel, A.Taranenko, P.Danielewicz Decomposition of harmonic and jet contributions to particle-pair correlations at ultrarelativistic energies
doi: 10.1103/PhysRevC.72.011902
2004PA22 Phys.Lett. B 595, 158 (2004) S.Pal, C.M.Ko, J.M.Alexander, P.Chung, R.A.Lacey Ξ production at AGS energies NUCLEAR REACTIONS 197Au(197Au, X), E=2-11 GeV/nucleon; calculated Ξ particle yields, centrality dependence, related features. Relativistic transport model, strangeness-exchange reactions, comparison with data.
doi: 10.1016/j.physletb.2004.06.045
2002PI05 Nucl.Phys. A698, 495c (2002) C.Pinkenburg, N.N.Ajitanand, J.M.Alexander, M.Anderson, D.Best, F.P.Brady, T.Case, W.Caskey, D.Cebra, J.L.Chance, P.Chung, B.Cole, K.Crowe, A.C.Das, J.E.Draper, M.L.Gilkes, S.Gushue, M.Heffner, A.S.Hirsch, E.L.Hjort, L.Huo, M.Justice, M.Kaplan, D.Keane, J.C.Kintner, J.Klay, D.Krofcheck, R.A.Lacey, C.Law, J.Lauret, M.A.Lisa, H.Liu, Y.M.Liu, R.L.McGrath, Z.Milosevich, G.Odyniec, D.L.Olson, S.Panitkin, N.T.Porile, G.Rai, H.G.Ritter, J.L.Romero, R.Scharenberg, L.S.Schroeder, B.Srivastava, N.T.B.Stone, T.J.M.Symons, S.Wang, J.Whitfield, R.Witt, L.Wood, W.N.Zhang Production and Collective Behavior of Strange Particles in Au + Au Collisions at 2-8A GeV NUCLEAR REACTIONS 197Au(197Au, X), E=2-8 GeV/nucleon; measured hyperon and kaon yields, sideward flow.
doi: 10.1016/S0375-9474(01)01412-9
2001CH09 J.Phys.(London) G27, 293 (2001) P.Chung, J.M.Alexander, N.N.Ajitanand, M.Anderson, D.Best, E.P.Brady, T.Case, W.Caskey, D.Cebra, J.L.Chance, B.Cole, K.Crowe, A.C.Das, J.E.Draper, M.L.Gilkes, S.Gushue, M.Heffner, A.S.Hirsch, E.L.Hjort, L.Huo, M.Justice, M.Kaplan, D.Keane, J.C.Kintner, J.Klay, D.Krofcheck, R.A.Lacey, C.Law, J.Lauret, M.A.Lisa, H.Liu, Y.M.Liu, R.McGrath, Z.Milosevich, G.Odyniec, D.L.Olson, S.Panitkin, C.Pinkenburg, N.T.Porile, G.Rai, H.G.Ritter, J.L.Romero, R.Scharenberg, L.Schroeder, B.Srivastava, N.T.B.Stone, T.J.M.Symons, J.Whitfield, R.Witt, L.Wood, W.N.Zhang Λ Flow and Λ-P Correlation in Au + Au Collisions at AGS Energies NUCLEAR REACTIONS 197Au(197Au, X), E=2, 4, 6 GeV/nucleon; measured hyperon transverse and radial flow, hyperon-proton correlations. Comparison with model predictions.
doi: 10.1088/0954-3899/27/3/306
2000CO20 Phys.Rev. C61, 067602 (2000) E.Colin, R.Sun, N.N.Ajitanand, J.M.Alexander, M.A.Barton, P.A.DeYoung, K.L.Drake, A.Elmaani, C.J.Gelderloos, E.E.Gualtieri, D.Guinet, S.Hannuschke, J.A.Jaasma, L.Kowalski, R.A.Lacey, J.Lauret, E.Norbeck, R.Pak, G.F.Peaslee, M.Stern, N.T.B.Stone, S.D.Sundbeck, A.M.Vander Molen, G.D.Westfall, L.B.Yang, J.Yee Nuclear Disassembly in Violent Central Collisions at Intermediate Energies: (65-115)A MeV 40Ar + Cu, Ag, Au NUCLEAR REACTIONS Cu, Ag, 197Au(40Ar, X), E=65-115 MeV/nucleon; measured fragments multiplicity, velocity, mass distributions; deduced rate of nuclear disassembly.
doi: 10.1103/PhysRevC.61.067602
2000SU01 Phys.Rev.Lett. 84, 43 (2000) R.Sun, E.Colin, N.N.Ajitanand, J.M.Alexander, M.A.Barton, P.A.DeYoung, K.L.Drake, A.Elmaani, C.J.Gelderloos, E.E.Gualtieri, D.Guinet, S.Hannuschke, J.A.Jaasma, L.Kowalski, R.A.Lacey, J.Lauret, E.Norbeck, R.Pak, G.F.Peaslee, M.Stern, N.T.B.Stone, S.D.Sundbeck, A.M.Vander Molen, G.D.Westfall, L.B.Yang, J.Yee Balance of Mass, Momentum, and Energy in Splintering Central Collisions for 40Ar up to 115 MeV/Nucleon NUCLEAR REACTIONS Cu, Ag, 197Au(40Ar, X), E=17-115 MeV/nucleon; measured fragments mass, charge, multiplicity, momentum, angular distributions. Comparison with statistical model.
doi: 10.1103/PhysRevLett.84.43
2000SU12 Phys.Rev. C61, 061601 (2000) R.Sun, E.Colin, N.N.Ajitanand, J.M.Alexander, M.A.Barton, P.A.DeYoung, K.L.Drake, A.Elmaani, C.J.Gelderloos, E.E.Gualtieri, D.Guinet, S.Hannuschke, J.A.Jaasma, L.Kowalski, R.A.Lacey, J.Lauret, E.Norbeck, R.Pak, G.F.Peaslee, M.Stern, N.T.B.Stone, S.D.Sundbeck, A.M.Vander Molen, G.D.Westfall, L.B.Yang, J.Yee Isotropic Emission Components in Splintering Central Collisions: (17-115)A MeV 40Ar + Cu, Ag, Au NUCLEAR REACTIONS Cu, Ag, 197Au(40Ar, X), E=17-115 MeV/nucleon; measured fragments mass and charge distributions, multiplicities, kinetic energy spectra, angular distributions; deduced reaction mechanism features. Sequential evaporation model.
doi: 10.1103/PhysRevC.61.061601
1998CO03 Phys.Rev. C57, R1032 (1998) E.Colin, R.Sun, N.N.Ajitanand, J.M.Alexander, M.A.Barton, P.A.DeYoung, A.Elmaani, C.J.Gelderloos, E.E.Gualtieri, D.Guinet, S.Hannuschke, J.A.Jaasma, L.Kowalski, R.A.Lacey, J.Lauret, E.Norbeck, R.Pak, G.F.Peaslee, M.Stern, N.T.B.Stone, S.D.Sundbeck, A.M.Vander Molen, G.D.Westfall, J.Yee Splintering Central Collisions: Systematics of momentum and energy deposition for (17-115)A MeV 40Ar NUCLEAR REACTIONS Cu, Ag, 197Au(40Ar, X), E=17-115 MeV/nucleon; measured light, intermediate, heavy fragments velocity, mass, angle, charge distributions; deduced reaction mechanism.
doi: 10.1103/PhysRevC.57.R1032
1998DA16 Phys.Rev.Lett. 81, 2438 (1998) P.Danielewicz, R.A.Lacey, P.-B.Gossiaux, C.Pinkenburg, P.Chung, J.M.Alexander, R.L.McGrath Disappearance of Elliptic Flow: A new probe for the nuclear equation of state NUCLEAR REACTIONS 197Au(197Au, X), E=1-11 GeV/nucleon; calculated elliptic flow excitation functions; deduced equation of state dependence, possible quark-gluon plasma signal.
doi: 10.1103/PhysRevLett.81.2438
1996GE10 Phys.Rev. C54, 3056 (1996) C.J.Gelderloos, J.M.Alexander, J.Boger, M.T.Magda, A.Narayanan, P.A.DeYoung, A.Elmaani, M.A.McMahan Classical Tests for Statistical Evaporation at 680 MeV 40Ar + (nat)Ag NUCLEAR REACTIONS Ag(40Ar, X), E=680 MeV; measured light charged particle production σ, partial linear momentum transfer. Statistical evaporation classical test, coincidence data.
doi: 10.1103/PhysRevC.54.3056
1996MA08 Phys.Rev. C53, R1473 (1996) M.T.Magda, E.Bauge, A.Elmaani, T.Braunstein, C.J.Gelderloos, N.N.Ajitanand, J.M.Alexander, T.Ethvignot, P.Bier, L.Kowalski, P.Desesquelles, H.Elhage, A.Giorni, S.Kox, A.Lleres, F.Merchez, C.Morand, P.Stassi, J.B.Benrachi, B.Chambon, B.Cheynis, D.Drain, C.Pastor Fusionlike Reactions of 40Ar up to 1.36 GeV: Prethermalization and postthermalization particles and fragments NUCLEAR REACTIONS Ag(40Ar, X), E=0.28-1.36 GeV; measured (fragment)(fragment)-coin, light fragment (Z=1, 2) angular, energy dependences; deduced emission mechanisms.
doi: 10.1103/PhysRevC.53.R1473
1995DE54 Phys.Rev. C52, 3488 (1995) P.A.DeYoung, N.N.Ajitanand, J.M.Alexander, V.Datar, C.J.Gelderloos, G.Gilfoyle, M.S.Gordon, R.L.McGrath, G.F.Peaslee, J.Sarafa Correlation Measurements of Light Charged Particles Emitted from 32S + 27Al Reactions at Energies of 105 MeV and 215 MeV NUCLEAR REACTIONS 32S(27Al, X), E=105, 215 MeV; measured small angle correlation functions for pp-, pd-, pα-, dα-, αα-pairs; deduced unstable fragment yields. Compared with statistical model predictions.
doi: 10.1103/PhysRevC.52.3488
1995GE10 Phys.Rev.Lett. 75, 3082 (1995) C.J.Gelderloos, J.M.Alexander, N.N.Ajitanand, E.Bauge, A.Elmaani, T.Ethvignot, L.Kowalski, R.A.Lacey, M.E.Brandan, A.Giorni, D.Heuer, S.Kox, A.Lleres, A.Menchaca-Rocha, F.Merchez, D.Rebreyend, J.B.Viano, B.Chambon, B.Cheynis, D.Drain, C.Pastor Time Relationships between Direct Particle Emission and Fragmentation: A probe for nuclear expansion prior to fragment freeze-out NUCLEAR REACTIONS Ag(40Ar, X), E=34 MeV/nucleon; measured intermediate mass fragment emission time relative to 2H, 3He; deduced prior fragment freeze-out expansion features.
doi: 10.1103/PhysRevLett.75.3082
1995GE12 Phys.Rev. C52, R2834 (1995) C.J.Gelderloos, R.Sun, N.N.Ajitanand, J.M.Alexander, E.Bauge, A.Elmaani, T.Ethvignot, R.A.Lacey, M.E.Brandan, A.Giorni, D.Heuer, S.Kox, A.Lleres, A.Menchaca-Rocha, F.Merchez, D.Rebreyend, J.B.Viano, B.Chambon, B.Cheynis, D.Drain, C.Pastor Emission Times for Energy Selected 1,2,3H Ejectiles from Central Collisions: 1360 MeV 40Ar + Ag NUCLEAR REACTIONS Ag(40Ar, X), E=1.36 GeV; measured (fragment)(fragment) relative momentum, velocity difference correlations for 1,2,3H ejectiles; deduced emission times, mechanism.
doi: 10.1103/PhysRevC.52.R2834
1995PA33 Nucl.Phys. A594, 1 (1995) W.E.Parker, M.Kaplan, D.J.Moses, J.M.Alexander, R.A.Lacey, D.M.de Castro Rizzo, J.Boger, A.Narayanan, G.F.Peaslee, D.G.Popescu Coincidence Correlations between Light Charged Particles in the Matched Reactions 905 and 1030 MeV 121Sb + 27Al and 550 and 750 MeV 86Kr + 63Cu NUCLEAR REACTIONS 27Al(121Sb, X), E=905, 1030 MeV; 63Cu(86Kr, X), E=550, 750 MeV; measured energy spectra, angular correlations of α/p in coincidence with α/p; deduced light particle production σ, mean emission chain lengths associated with evaporation residues. Characterized emitters. Comparisons made for matched reactions.
doi: 10.1016/0375-9474(95)00339-3
1994BO06 Phys.Rev. C49, 1576 (1994) J.Boger, J.M.Alexander, G.Auger, A.Elmaani, S.Kox, R.A.Lacey, A.Narayanan, M.Kaplan, D.J.Moses, M.A.McMahan, P.A.DeYoung, C.J.Gelderloos, G.Gilfoyle Light Charged Particle and Intermediate Mass Fragment Emission in the Reaction 640 MeV 86Kr + 63Cu NUCLEAR REACTIONS 63Cu(86Kr, X), E=640 MeV; measured inclusive σ(θ, Ep), σ(θ, Ed), σ(θ, Et), σ(θ, Eα), (fragment)(light charged particle)-coin; deduced p-, α-multiplicities, intermediate fragment masses, kinetic energies.
doi: 10.1103/PhysRevC.49.1576
1994BO07 Phys.Rev. C49, 1587 (1994) J.Boger, J.M.Alexander, R.A.Lacey, A.Narayanan Tests for Equilibration of 149Tb(*) Composite Nuclei Produced in the Reactions 337 MeV 40Ar + (nat)Ag and 640 MeV 86Kr + 63Cu NUCLEAR REACTIONS Ag(40Ar, X), E=337 MeV; 63Cu(86Kr, X), E=640 MeV; analyzed σ, σ(θ(X), E(X)), other data; deduced particle evaporation, fission relative time scale. 149Tb deduced equilibration features.
doi: 10.1103/PhysRevC.49.1587
1994BO08 Phys.Rev. C49, 1597 (1994) J.Boger, J.M.Alexander, A.Elmaani, S.Kox, R.A.Lacey, A.Narayanan, D.J.Moses, M.A.McMahan, P.A.DeYoung, C.J.Gelderloos Intermediate Mass Fragments from the Reactions 486, 550, 640, and 730 MeV 86Kr + 63Cu NUCLEAR REACTIONS 63Cu(86Kr, X), E=486-730 MeV; measured inclusive σ(θ(X), E(X)); deduced intermediate fragment production mechanism. 149Tb deduced equilibrium occurs prior to fissionlike asymmetry binary breakup.
doi: 10.1103/PhysRevC.49.1597
1994BO26 Phys.Rev. C50, 1006 (1994) Excitation Functions and Asymmetric Fission Barriers for Intermediate Mass Fragments: 486-730 MeV 86Kr + 63Cu NUCLEAR REACTIONS 63Cu(86Kr, F), E=486-730 MeV; analyzed fission data; deduced asymmetric fission barriers vs intermediate mass fragment Z.
doi: 10.1103/PhysRevC.50.1006
1994EL02 Phys.Rev. C49, 284 (1994) A.Elmaani, J.M.Alexander, N.N.Ajitanand, R.A.Lacey, S.Fox, E.Liatard, F.Merchez, T.Motobayashi, B.Noren, C.Perrin, D.Rebreyend, T.U.Chan, G.Auger, S.Groult Lifetimes of Well Characterized Hot Nuclei via Small-Angle Particle-Particle Correlations: 40Ar + Ag(E/A = 7.8 and 17 MeV) NUCLEAR REACTIONS Ag(40Ar, X), E=7.8, 17 MeV/nucleon; measured (particle)(particle)(θ), light charged particle multiplicity; deduced emission source decay T1/2.
doi: 10.1103/PhysRevC.49.284
1994GE11 Nucl.Instrum.Methods Phys.Res. A349, 618 (1994) A Probe of Emission Order and Time Delay for Pairs of Ejectiles in Nuclear Reactions NUCLEAR REACTIONS Ag(40Ar, X), E=34 MeV/nucleon; analyzed (7Li)(d)-coin data; deduced ejectiles emission order, time delay estimating possibilities.
doi: 10.1016/0168-9002(94)91234-3
1994PA04 Nucl.Phys. A568, 633 (1994) W.E.Parker, M.Kaplan, D.J.Moses, J.M.Alexander, J.T.Boger, R.A.Lacey, D.M.de Castro Rizzo Mechanisms of Light-Charged-Particle Emission in the Matched Reactions 905 and 1030 MeV 121Sb + 27Al and 550 and 750 MeV 86Kr + 63Cu NUCLEAR REACTIONS 27Al(121Sb, X), E=905, 1030 MeV; 63Cu(86Kr, X), E=550, 750 MeV; measured energy spectra, (αX)-, (pX)-coin; deduced evaporative light particle multiplicities for each emission source, characterized emitters. Matched reactions comparisons.
doi: 10.1016/0375-9474(94)90398-0
1993AL22 Phys.Rev. C48, 2874 (1993) J.M.Alexander, A.Elmaani, L.Kowalski, N.N.Ajitanand, C.J.Gelderloos Alternatives for Understanding Qualitative Features that Dominate Particle-Particle Correlations in Heavy-Ion Reactions of ≈ 50 MeV/nucleon NUCLEAR REACTIONS 197Au(40Ar, X), E=60 MeV/nucleon; 59Co(20Ne, X), E=30 MeV/nucleon; analyzed (light charged particle)(particle)(θ) data; deduced source size, emitter lifetime in space-time extent separate dominance.
doi: 10.1103/PhysRevC.48.2874
1993EL01 Phys.Rev. C47, 1321 (1993) Reaction Simulations as a Guide to Lifetime Information from Particle-Particle Correlations NUCLEAR REACTIONS Ag(40Ar, X), E=680, 312 MeV; calculated (particle)(particle)-correlation functions; deduced sensitivity to emitter T1/2. Associated reaction simulation calculations.
doi: 10.1103/PhysRevC.47.1321
1993EL04 Phys.Rev. C48, 2864 (1993) A.Elmaani, J.M.Alexander, N.N.Ajitanand, R.A.Lacey, S.Kox, E.Liatard, F.Merchez, T.Motobayashi, B.Noren, C.Perrin, D.Rebreyend, T.U.Chan, G.Auger, S.Groult Breakup of Intermediate-Mass Fragments, 8Be and 6Li, Formed in the Reaction 40Ar + Ag at 7.8 A and 17 A MeV NUCLEAR REACTIONS Ag(40Ar, X), E=7.8, 17 MeV/nucleon; measured (light charged particle)(particle)(θ); deduced unstable 8Be, 6Li yields.
doi: 10.1103/PhysRevC.48.2864
1993ET01 Phys.Rev. C47, 2099 (1993) T.Ethvignot, N.N.Ajitanand, J.M.Alexander, A.Elmaani, C.J.Gelderloos, P.Desesquelles, H.Elhage, A.Giorni, D.Heuer, S.Kox, A.Lleres, F.Merchez, C.Morand, D.Rebreyend, P.Stassi, J.B.Viano, F.Benrachi, B.Chambon, B.Cheynis, D.Drain, C.Pastor Transverse Momentum Correlations between Particle-Particle Pairs as a Probe of Effective Emitter Mass: 40Ar + (nat)Ag(E/A = 7, 17, 27, and 34 MeV) NUCLEAR REACTIONS Ag(40Ar, X), E=17-34 MeV/nucleon; measured αα(θ, φ); deduced first α-emitter mass, (particle)(particle)-pair transverse momentum correlations.
doi: 10.1103/PhysRevC.47.2099
1993ET02 Phys.Rev. C48, 618 (1993) T.Ethvignot, J.M.Alexander, A.J.Cole, A.Elmaani, P.Desesquelles, H.Elhage, A.Giorni, D.Heuer, S.Kox, A.Lleres, F.Merchez, C.Morand, D.Rebreyend, P.Stassi, J.B.Viano, F.Benrachi, B.Chambon, B.Cheynis, D.Drain, C.Pastor Li-Li Azimuthal Angular Correlations: A test for emission from a rotating source versus instantaneous multifragmentation NUCLEAR REACTIONS 197Au, Ag, Cu, 27Al(40Ar, X), E=17-34 MeV/nucleon; measured (Li)(Li)(φ); deduced dominant driving force features.
doi: 10.1103/PhysRevC.48.618
1993KA10 Nucl.Instrum.Methods Phys.Res. A327, 551 (1993) M.Kaplan, W.E.Parker, D.J.Moses, R.Lacey, J.M.Alexander The Role of Reversed Kinematics and Double Kinematic Solutions in Nuclear Reactions Studies NUCLEAR REACTIONS 27Al(121Sb, X), E=8.5 MeV/nucleon; measured fission (fragment)(α)-, (fragment)(p)-coin; deduced reversed kinematics advantages.
doi: 10.1016/0168-9002(93)90724-V
1992AJ03 Nucl.Instrum.Methods Phys.Res. A316, 446 (1992) N.N.Ajitanand, M.Beuhler, C.Gelderloos, J.M.Alexander Thin Film Scintillation Detectors for Evaporation Residue Detection: Angular distributions and coincidence trigger NUCLEAR REACTIONS 27Al(32S, X), E=142 MeV; measured evaporation residue σ(θ). Thin film scintillation detector.
doi: 10.1016/0168-9002(92)90933-U
1992AJ04 Nucl.Instrum.Methods Phys.Res. A320, 596 (1992) N.N.Ajitanand, A.Narayanan, T.Ethvignot, H.Yu, J.M.Alexander, B.Lund, M.Gai Measurements of Thick Target Fission Yields as a Probe of Fission Excitation Functions for Deep Sub-Barrier Energies NUCLEAR REACTIONS, ICPND 238U(p, F), E=4.2-12 MeV; measured thick target fission yields. Close-geometry technique.
doi: 10.1016/0168-9002(92)90956-5
1992EL03 Nucl.Instrum.Methods Phys.Res. A313, 401 (1992) A.Elmaani, N.N.Ajitanand, T.Ethvignot, J.M.Alexander Trajectory Calculations for Particle-Particle Correlations: Probes of source lifetime, rotational motion, momentum conservation and particle-unstable fragments NUCLEAR REACTIONS 27Al(16O, X), E=140 MeV; Ag(40Ar, X), E=680 MeV; calculated (particle)(particle)-correlation function, light fragments. Ag(40Ar, X), E=1080 MeV; calculated light fragment σ(θ, φ). Trajectory calculations, rotational motion, momentum conservation, fragment particle instability.
doi: 10.1016/0168-9002(92)90818-O
1992ET01 Phys.Rev. C46, 637 (1992) T.Ethvignot, N.N.Ajitanand, J.M.Alexander, E.Bauge, A.Elmaani, L.Kowalski, M.Lopez, M.T.Magda, P.Desesquelles, H.Elhage, A.Giorni, D.Heuer, S.Kox, A.Lleres, F.Merchez, C.Morand, D.Rebreyend, P.Stassi, J.B.Viano, F.Benrachi, B.Chambon, B.Cheynis, D.Drain, C.Pastor Evolution of Fragment-Fragment Correlations in Reactions of 197Au and 107,109Ag with 40Ar from 7 A to 34 A MeV NUCLEAR REACTIONS Ag, 197Au(40Ar, X), E=7-34 MeV/nucleon; measured (fragment)(fragment)(θ, φ), light charged particles; deduced fragment production mechanism. Trajectory model analysis.
doi: 10.1103/PhysRevC.46.637
1992ET02 Nucl.Phys. A545, 347c (1992) T.Ethvignot, N.N.Ajitanand, C.J.Gelderloos, J.M.Alexander, E.Bauge, A.Elmaani, R.A.Lacey, P.Desesquelles, H.Elhage, A.Giorni, D.Heuer, S.Kox, A.Lleres, F.Merchez, C.Morand, D.Rebreyend, P.Stassi, J.B.Viano, F.Benrachi, B.Chambon, B.Cheynis, D.Drain, C.Pastor Correlations between Pairs and Particles and Fragments from 40Ar Reactions of 7-34 A MeV NUCLEAR REACTIONS Ag(40Ar, X), E=7-34 MeV/nucleon; measured αα-correlations; deduced composite nucleus formation, decay mechanisms. Recoil model analysis.
doi: 10.1016/0375-9474(92)90475-Y
1992GI03 Phys.Rev. C46, 265 (1992) G.P.Gilfoyle, M.S.Gordon, R.L.McGrath, G.Auger, J.M.Alexander, D.G.Kovar, M.F.Vineyard, C.Beck, D.J.Henderson, P.A.DeYoung, D.Kortering Heavy Residue Production in 215 MeV 16O + 27Al Reactions NUCLEAR REACTIONS 27Al(16O, X), E=215 MeV; measured (particle)(particle)-coin, fragment mass, velocity distributions; deduced evidence for heavy fragment production.
doi: 10.1103/PhysRevC.46.265
1992GO05 Phys.Rev. C46, R1 (1992) M.S.Gordon, R.L.McGrath, J.M.Alexander, P.A.DeYoung, X.-Q.Lu, D.M.de Castro-Rizzo, G.P.Gilfoyle Particle-Particle Correlations: Independent particle emission versus sequential decay of heavy fragments NUCLEAR REACTIONS 27Al(16O, X), E=140 MeV; measured light charged particle pair correlations; deduced independent particle evaporation, preformed fragments sequential decay contributions.
doi: 10.1103/PhysRevC.46.R1
1992MA03 Phys.Rev. C45, 1209 (1992) M.T.Magda, T.Ethvignot, A.Elmaani, J.M.Alexander, P.Desesquelles, H.Elhage, A.Giorni, D.Heuer, S.Kox, A.Lleres, F.Merchez, C.Morand, D.Rebreyend, P.Stassi, J.B.Viano, F.Benrachi, B.Chambon, B.Cheynis, D.Drain, C.Pastor Charged Particle Multiplicities in Reactions of Ag with 40Ar of 7, 17, 27, and 34 MeV/Nucleon NUCLEAR REACTIONS Ag(40Ar, X), E=7, 17, 27, 34 MeV/nucleon; measured light charged particles multiplicities, various gating conditions; deduced σ, central impact parameter.
doi: 10.1103/PhysRevC.45.1209
1991EL02 Phys.Rev. C43, R2474 (1991) A.Elmaani, N.N.Ajitanand, J.M.Alexander, R.Lacey, S.Kox, E.Liatard, F.Merchez, T.Motobayashi, B.Noren, C.Perrin, D.Rebreyend, Tsan Ung Chan, G.Auger, S.Groult Characterization of Very Highly Excited Composite Nuclei: Temperature, spin zone, radial extent, and lifetime scale of 10-22s NUCLEAR REACTIONS Ag(40Ar, X), E=7-17 MeV/nucleon; measured (particle)(particle)-coin; deduced emitting nuclei rms spin, temperature. Statistical model calculations.
doi: 10.1103/PhysRevC.43.R2474
1991ET02 Phys.Rev. C43, R2035 (1991) T.Ethvignot, A.Elmaani, N.N.Ajitanand, J.M.Alexander, E.Bauge, P.Bier, L.Kowalski, M.T.Magda, P.Desesquelles, H.Elhage, A.Giorni, D.Heuer, S.Kox, A.Lleres, F.Merchez, C.Morand, D.Rebreyend, P.Stassi, J.B.Viano, S.Benrachi, B.Chambon, B.Cheynis, D.Drain, C.Pastor Tracking the Dissipation of Energy and Angular Momentum in Central Collisions between Ag and 40Ar of 7, 17, 27, and 34 MeV/Nucleon NUCLEAR REACTIONS Ag(40Ar, X), E=280-1360 MeV; measured charged particles multiplicities for X=1,2,3H, 4He, Li; deduced energy dissipation trends, role of angular momentum deposition. CsI detector array.
doi: 10.1103/PhysRevC.43.R2035
1991PA08 Phys.Rev. C44, 774 (1991) W.E.Parker, M.Kaplan, D.J.Moses, G.La Rana, D.Logan, R.Lacey, J.M.Alexander, D.M.de Castro Rizzo, P.DeYoung, R.J.Welberry, J.T.Boger Charged-Particle Evaporation from Hot Composite Nuclei: Evidence over a broad Z range for distortions from cold nuclear profiles NUCLEAR REACTIONS 12C, 27Al(20Ne, X), E=167 MeV; 12C(40Ar, X), E=340 MeV; 27Al(40Ar, X), E=190 MeV; 12C(56Fe, X), E=476 MeV; 12C(86Kr, X), E=730 MeV; 12C(109Ag, X), E=956 MeV; 27Al, 12C(121Sb, X), E=1.03 GeV; 27Al(109Ag, X), E=956 MeV; measured σ(fragment θ, E), light charged particles; deduced extended nuclear density profile evidence.
doi: 10.1103/PhysRevC.44.774
1990AL24 Phys.Rev. C42, 1092 (1990) J.M.Alexander, M.T.Magda, S.Landowne Inverse Reactions and the Statistical Evaporation Model: Ingoing-wave boundary-condition and optical models NUCLEAR STRUCTURE 67Ga, 149Tb; calculated transmission coefficient vs channel energy for incident n, 1,2,3H, 4He on different targets; deduced effective barriers. Different model comparisons.
doi: 10.1103/PhysRevC.42.1092
1990BO04 Phys.Rev. C41, R801 (1990) J.Boger, S.Kox, G.Auger, J.M.Alexander, A.Narayanan, M.A.McMahan, D.J.Moses, M.Kaplan, G.P.Gilfoyle Three Paths for Intermediate-Mass Fragment Formation at a Near-Onset Excitation Energy of 1.3 MeV/Nucleon NUCLEAR REACTIONS 63Cu(84Kr, X), E=640 MeV; measured σ(fragment θ, E) for fragment Z=4-17; deduced reaction mechanism.
doi: 10.1103/PhysRevC.41.R801
1990DE11 Phys.Rev. C41, R1885 (1990) P.A.DeYoung, C.J.Gelderloos, D.Kortering, J.Sarafa, K.Zienert, M.S.Gordon, B.J.Fineman, G.P.Gilfoyle, X.Lu, R.L.McGrath, D.M.de Castro Rizzo, J.M.Alexander, G.Auger, S.Kox, L.C.Vaz, C.Beck, D.J.Henderson, D.G.Kovar, M.F.Vineyard Particle-Particle Correlations and Lifetimes of Composite Nuclei: New tests for the evaporation model and for statistical equilibration NUCLEAR REACTIONS 27Al(16O, 2p), (16O, pd), E=80-250 MeV; measured pp-, pd-correlations; deduced evaporative decay T1/2. Statistical model.
doi: 10.1103/PhysRevC.41.R1885
1990JA07 Nucl.Phys. A511, 195 (1990) D.Jacquet, G.F.Peaslee, J.M.Alexander, B.Borderie, E.Duek, J.Galin, D.Gardes, C.Gregoire, D.Guerreau, H.Fuchs, M.Lefort, M.F.Rivet, X.Tarrago Production and Deexcitation of Hot Nuclei in Collisions of 27 MeV/Nucleon 40Ar with 238U NUCLEAR REACTIONS 238U(40Ar, F), (40Ar, X), E=1080 MeV; measured (fragment)(fragment)-, (light charged particle)(fragment)-coin following fission. Landau-Vlasov calculations.
doi: 10.1016/0375-9474(90)90032-H
1989DE02 Phys.Rev. C39, 128 (1989) P.A.DeYoung, M.S.Gordon, Xiuqin Lu, R.L.McGrath, J.M.Alexander, D.M.de Castro Rizzo, L.C.Vaz Emission Times in Low-Energy Heavy-Ion Reactions by Particle-Particle Correlations NUCLEAR REACTIONS 27Al(16O, 2p), (16O, 2α), E=140 MeV; measured pp, αα correlations; deduced successive proton emission interval T1/2, (αα) correlations problematics.
doi: 10.1103/PhysRevC.39.128
1989PE01 Phys.Rev. C39, 488 (1989) G.F.Peaslee, N.N.Ajitanand, J.M.Alexander, R.Lacey, L.C.Vaz, M.Kaplan, M.Kildir, D.J.Moses, D.Logan, M.S.Zisman Particle-Particle Coincidence Measurements for 1,2,3H and 4He in the Reaction 480 MeV 56Fe + (nat)Ag NUCLEAR REACTIONS Ag(56Fe, pX), (56Fe, dX), (56Fe, tX), (56Fe, αX), E=480 MeV; measured (particle)(particle)-coin; deduced average particle multiplicities, energy removed, effective emission barriers.
doi: 10.1103/PhysRevC.39.488
1988CA18 Phys.Rev. C38, 1692 (1988) Predictions of the Macroscopic Model of Nuclei: Barriers to fusion and to light fragment emission NUCLEAR STRUCTURE 149Tb, 194Hg; calculated fission, fusion barriers. Macroscopic model.
doi: 10.1103/PhysRevC.38.1692
1988LA12 Phys.Rev. C37, 2540 (1988) R.Lacey, N.N.Ajitanand, J.M.Alexander, D.M.de Castro Rizzo, G.F.Peaslee, L.C.Vaz, M.Kaplan, M.Kildir, G.La Rana, D.J.Moses, W.E.Parker, D.Logan, M.S.Zisman, P.DeYoung, L.Kowalski Mechanisms for Light Charged Particle Emission in the Reactions 247 and 337 MeV 40Ar + (nat)Ag NUCLEAR REACTIONS Ag(40Ar, pX), (40Ar, dX), (40Ar, tX), (40Ar, αX), (40Ar, X), E=247, 337 MeV; measured σ(θ), σ(Eα, θα); deduced pre-, post scission emission multiplicities. Deformed emitters.
doi: 10.1103/PhysRevC.37.2540
1988LA13 Phys.Rev. C37, 2561 (1988) R.Lacey, N.N.Ajitanand, J.M.Alexander, D.M.de Castro Rizzo, G.F.Peaslee, L.C.Vaz, M.Kaplan, M.Kildir, G.La Rana, D.J.Moses, W.E.Parker, D.Logan, M.S.Zisman, P.DeYoung, L.Kowalski Large-Angle Correlations between 4He and 1,2,3H or 4He in the Reactions 247 and 337 MeV 40Ar + (nat)Ag: Unexpected properties of the nuclear stratosphere NUCLEAR REACTIONS Ag(40Ar, αX), E=247, 337 MeV; measured α(light fragment)-coin, energy correlations; deduced emission source properties, mechanism.
doi: 10.1103/PhysRevC.37.2561
1988PE16 Phys.Rev. C38, 1730 (1988) G.F.Peaslee, N.N.Ajitanand, J.M.Alexander, D.Guerreau, R.Lacey, L.C.Vaz, M.Kaplan, M.Kildir, D.J.Moses, D.Logan, M.S.Zisman Sources of Light-Charged-Particle Emission in the Reaction 480 MeV 56Fe + (nat)Ag NUCLEAR REACTIONS Ag(56Fe, pX), (56Fe, dX), (56Fe, tX), (56Fe, αX), E=480 MeV; measured σ(fragment θ), σ(E(X), θ(X)) for X=p, d, t, α; deduced reaction, particle emission mechanisms.
doi: 10.1103/PhysRevC.38.1730
1987LA03 Phys.Rev. C35, 373 (1987) G.La Rana, D.J.Moses, W.E.Parker, M.Kaplan, D.Logan, R.Lacey, J.M.Alexander, R.J.Welberry Need for New Physics in Statistical Models of Nuclear Deexcitation NUCLEAR REACTIONS 27Al(40Ar, α), (40Ar, p), E=190 MeV; measured σ(Eα, θ), σ(Ep, θ). Si telescopes. Statistical model calculations.
doi: 10.1103/PhysRevC.35.373
1987LA13 Phys.Lett. 191B, 253 (1987) R.Lacey, N.N.Ajitanand, J.M.Alexander, D.M.De Castro Rizzo, P.DeYoung, M.Kaplan, L.Kowalski, G.La Rana, D.Logan, D.J.Moses, W.E.Parker, G.F.Peaslee, L.C.Vaz Surprising Properties of the Nuclear Stratosphere Indicated by Energy Spectra and Large-Angle Correlations between 4He and 1,2,3H or 4He NUCLEAR REACTIONS Ag(40Ar, pα), (40Ar, dα), (40Ar, tα), (40Ar, 2α), E=337 MeV; measured σ(Eα, θα), αp-, αd-, αt-, αα-coin. Gas ionization, solid state Si telescopes. Theoretical calculations.
doi: 10.1016/0370-2693(87)90250-4
1987MO05 Nucl.Phys. A465, 339 (1987) D.J.Moses, M.Kaplan, M.Kildir, D.R.G.Logan, G.La Rana, W.E.Parker, R.Lacey, G.F.Peaslee, J.M.Alexander, N.N.Ajitanand, L.C.Vaz, M.S.Zisman Light Charged Particle Emission in 485 MeV 56Fe + 197Au Reactions: Correlations with heavy fragments and relationships to spin and lifetime NUCLEAR REACTIONS 197Au(56Fe, X), (56Fe, F), E=485 MeV; measured σ(Eα, θα, fragment θ), σ(Ep), σ(Eα), σ(Ep, θp, fragment θ) following fission, deep inelastic scattering; deduced evaporative light-particle multiplicities for each emission source. 252Db deduced T1/2.
doi: 10.1016/0375-9474(87)90438-6
1987MO12 Phys.Rev. C36, 422 (1987) D.J.Moses, M.Kaplan, G.La Rana, W.E.Parker, R.Lacey, J.M.Alexander Nuclear Shape Deformations in 485-MeV 56Fe + 197Au Reactions NUCLEAR REACTIONS 197Au(56Fe, X), E=485 MeV; analyzed p-, α-energy spectra, σ(θ); deduced emitter deformation role.
doi: 10.1103/PhysRevC.36.422
1986AJ02 Nucl.Instrum.Methods Phys.Res. A242, 111 (1986) N.N.Ajitanand, R.Lacey, G.F.Peaslee, E.Duek, J.M.Alexander GANES: A computer program for the simulation of laboratory spectra of evaporative light particles in heavy ion reactions NUCLEAR REACTIONS Ag(40Ar, αF), E=334 MeV; calculated σ(fragment θ, θα, Eα) following fission. Weighted Monte Carlo technique.
doi: 10.1016/0168-9002(86)90829-6
1986AJ03 Phys.Rev. C34, 877 (1986) N.N.Ajitanand, G.La Rana, R.Lacey, D.J.Moses, L.C.Vaz, G.F.Peaslee, D.M.de Castro Rizzo, M.Kaplan, J.M.Alexander Clues to the Shapes of very Hot Nuclei: Calculated patterns for evaporative emission from deformed nuclei NUCLEAR REACTIONS 197Au(56Fe, X), E=485 MeV; 27Al(40Ar, X), E=190 MeV; calculated evaporative <Eα>, anisotropies; deduced nuclear shape dependences.
doi: 10.1103/PhysRevC.34.877
1986AL03 Z.Phys. A323, 83 (1986) J.M.Alexander, E.Duek, L.Kowalski Blurred Images of Complete Fusion and Incomplete Fusion: Reaction simulation analysis of fission-fragment angular correlations NUCLEAR REACTIONS 238U(14N, F), E=15-30 MeV/nucleon; 197Au(20Ne, F), E=14.6 MeV/nucleon; analyzed fission fragment σ(θ1, θ2); deduced incomplete, complete fusion blurring zone, complete fusion lower limits.
1986VA20 Z.Phys. A324, 331 (1986) L.C.Vaz, J.M.Alexander, N.Carjan Comparison of Semiclassical and Quantum Mechanical Angular Distributions for Nuclear Fission and Evaporation NUCLEAR REACTIONS 56Fe(α, αX), E=17 MeV; 159Tb(22Ne, αX), E=60, 176 MeV; calculated evaporation α-anisotropy. 248Cm(32S, F), E=218 MeV; calculated fission fragment anisotropy. Semi-classical, quantum mechanical methods.
1985MO04 Z.Phys. A320, 229 (1985) D.J.Moses, M.Kaplan, J.M.Alexander, D.Logan, M.Kildir, L.C.Vaz, N.N.Ajitanand, E.Duek, M.S.Zisman Particle Spectra from Reversed Kinematics: Powerful probes of hot rotating nuclei NUCLEAR REACTIONS 12C(40Ar, pX), (40Ar, αX), (56Fe, pX), (56Fe, αX), (86Kr, pX), (86Kr, αX), E=8.5 MeV/nucleon; measured inclusive σ(θ, Ep), σ(θ, Eα); deduced effective evaporation emission, fusion barriers. Hot spot, moving source model.
doi: 10.1007/BF01881270
1984AJ02 Z.Phys. A316, 169 (1984) N.N.Ajitanand, J.M.Alexander, H.Delagrange, E.Duek, D.O.Eriksen, D.Guerreau, M.Kaplan, M.Kildir, L.Kowalski, R.Lacey, D.Logan, D.J.Moses, G.F.Peaslee, L.C.Vaz, M.S.Zisman Multiplicities for Evaporative 4He Emission in Heavy Ion Reactions: Relationships to spin and lifetime expectancy of the composite nucleus NUCLEAR REACTIONS Ag, 238U(40Ar, αX), (56Fe, αX), (40Ar, αF), (56Fe, αF), E=8.5 MeV/nucleon; measured σ(fragment θ, θα, Eα), fission-fusion, projectile-like fragment-coin; deduced reaction mechanism, hot nucleus thermodynamic properties.
doi: 10.1007/BF01412259
1984CA31 Nucl.Phys. A427, 173 (1984) C.Cabot, H.Gauvin, Y.Le Beyec, H.Delagrange, J.P.Dufour, Y.Llabador, A.Fleury, J.M.Alexander Measurements of Evaporation Residues and Fission for 40Ar + 110Pd NUCLEAR REACTIONS 110Pd(40Ar, X), (40Ar, F), E=164-262 MeV; measured fission fragment σ(θ), evaporation residue σ(θ), fusion σ; deduced evaporation residue, fission spin zones. Different theoretical models.
doi: 10.1016/0375-9474(84)90144-1
1984DU09 Z.Phys. A317, 83 (1984) E.Duek, N.N.Ajitanand, J.M.Alexander, D.Logan, M.Kildir, L.Kowalski, L.C.Vaz, D.Guerreau, M.S.Zisman, M.Kaplan, D.J.Moses Mechanisms for Emission of 4He in the Reactions of 334 MeV 40Ar with 238U NUCLEAR REACTIONS 238U(40Ar, αF), E=334 MeV; measured fission (fragment)(fragment)(α)-coin, σ(θα, Eα); deduced fission, α-emission mechanisms.
doi: 10.1007/BF01420452
1984JA16 Phys.Rev.Lett. 53, 2226 (1984) D.Jacquet, E.Duek, J.M.Alexander, B.Borderie, J.Galin, D.Gardes, D.Guerreau, M.Lefort, F.Monnet, M.F.Rivet, X.Tarrago Reaching the Capacity of a Composite Nucleus for Energy and Spin Containment NUCLEAR REACTIONS 238U(40Ar, αF), E=1080 MeV; measured fission (fragment)(fragment)(α)(θ); deduced reaction mechanism.
doi: 10.1103/PhysRevLett.53.2226
1984KI07 Z.Phys. A317, 291 (1984) M.Kildir, D.Logan, D.O.Eriksen, D.J.Moses, M.Kaplan, E.Duek, L.C.Vaz, N.N.Ajitanand, J.M.Alexander, M.S.Zisman Fission Reactions of 468-MeV 56Fe + 238U: Detection of 4He/1H Emission from Pre- and Post-Fission Sources NUCLEAR REACTIONS 238U(56Fe, pF), (56Fe, αF), E=469 MeV; measured fission (fragment)(fragment)(θ), σ(θp, Ep, fragment θ), σ(θα, Eα, fragment θ), proton, α differential multiplicities, σ(θα, Eα); deduced light particle emission mechanism.
doi: 10.1007/BF01438361
1984PR02 Phys.Rev.Lett. 52, 990 (1984); Erratum Phys.Rev.Lett. 53, 2520 (1984) M.Prakash, V.S.Ramamurthy, S.S.Kapoor, J.M.Alexander Transition-State Theory for Fission Angular Distributions: A flexible-rotor model NUCLEAR REACTIONS 198Pt(12C, F), E=186 MeV; 208Pb(19F, F), E=135 MeV; 208Pb(28Si, F), E=170 MeV; calculated fission fragment σ(θ), anisotropies. Transition state theory, flexible rotor model. NUCLEAR STRUCTURE 225Pa; calculated fission barrier, saddle point configuration vs K/I. Transition state theory, flexible, rigid rotor models.
doi: 10.1103/PhysRevLett.52.990
1984VA01 Phys.Rev.Lett. 52, 396 (1984) Fission Anisotropies and Sequential Fission NUCLEAR REACTIONS 238U(16O, F), E=110, 130, 148 MeV; calculated fission σ following fusion, fissile nucleus maximum spin, moment of inertia ratios. Reanalysis of data.
doi: 10.1103/PhysRevLett.52.396
1984VA05 Z.Phys. A315, 169 (1984) L.C.Vaz, D.Logan, E.Duek, J.M.Alexander, M.F.Rivet, M.S.Zisman, M.Kaplan, J.W.Ball Fission and Emission of H and He in the Reactions of 215 MeV 16O with 181Ta, 208Pb and 238U NUCLEAR REACTIONS 12C, 181Ta, 208Pb, 238U(16O, pX), (16O, αX), E=215 MeV; 181Ta, 208Pb, 238U(16O, dX), (16O, tX), E=215 MeV; measured inclusive σ(Ep), σ(Eα), σ(Ed), σ(Et), σ(θ), σ(θ, Ep), σ(θ, Eα). 209Bi, 238U(16O, F), E=215 MeV; measured fission σ; deduced evaporative emission effective barriers.
doi: 10.1007/BF01419376
1984VA26 Z.Phys. A318, 231 (1984) Empirical and Theoretical Fusion Barriers for 1H and 4He: Connections to evaporation from hot nuclei NUCLEAR REACTIONS, ICPND 59Co, 94Zr(p, X), E(cm)=2-6 MeV; 116Cd, 139La(p, X), E(cm)=2-8 MeV; 98Mo, 119Sn(p, X), E(cm) ≈ 2.5-7 MeV; 103Rh(p, X), E(cm)=2-12 MeV; 233U(p, X), E(cm)=5-13 MeV; 40Ca(α, X), E(cm) ≈ 5-19 MeV; 48Ti(α, X), E(cm) ≈ 5-8 MeV; 51V(α, X), E(cm)=6-10 MeV; 59Co(α, X), E(cm) ≈ 8-20 MeV; 164Dy(α, X), E(cm) ≈ 15-25 MeV; 208Pb(α, X), E(cm) ≈ 17-21 MeV; 209Bi(α, X), E(cm) ≈ 16-20 MeV; 233U(α, X), E(cm)=18-30 MeV; calculated fusion σ(E); deduced projectile fusion barriers. 181Ta(16O, α), E=215 MeV; 56Fe(12C, p), E=480 MeV; calculated evaporation σ(θα, Eα), σ(θp, Ep).
doi: 10.1007/BF01413474
1983DU14 Phys.Lett. 131B, 297 (1983) E.Duek, N.N.Ajitanand, J.M.Alexander, D.Logan, M.Kildir, L.Kowalski, L.C.Vaz, D.Guerreau, M.S.Zisman, M.Kaplan New Probe of Interediate Reaction Times: Near-Scission Emission of 4He for 334 MeV 40Ar + 238U NUCLEAR REACTIONS 238U(40Ar, αX), (40Ar, αF), E= 334 MeV; measured α(fragment)-coin following fusion, fission; deduced fragment, composite nucleus evaporation upper limit, near scission role.
doi: 10.1016/0370-2693(83)90502-6
1983VA10 Z.Phys. A311, 89 (1983) L.C.Vaz, D.Logan, J.M.Alexander, E.Duek, D.Guerreau, L.Kowalski, M.F.Rivet, M.S.Zisman Products of 3 ≤ Z ≤ 9 from Long-Lived Intermediates in the Reactions 336 MeV 40Ar + Ag, 154Sm and Au NUCLEAR REACTIONS 107,109Ag, 197Au, 154Sm(40Ar, 7Li), (40Ar, 9Be), (40Ar, 11B), (40Ar, 12C), (40Ar, 14N), (40Ar, 16O), (40Ar, 19F), E=336 MeV; measured σ(fragment θ), σ(fragment θ, E); deduced fission σ, σ(evaporation residue), σ(fusion), σ(reaction). 149Tb, 194Hg deduced effective emission barriers, rms spin values. Semi-classical analysis.
doi: 10.1007/BF01411611
1983VA17 Z.Phys. A312, 163 (1983) A Reconsideration of Fission Fragment Angular Distributions from Nuclei of High Spin NUCLEAR REACTIONS 197Au, 209Bi(20Ne, F), E=220 MeV; 238U(16O, F), E=90-148 MeV; 208Pb(32S, F), E=185-225 MeV; 238U(40Ar, F), E=340 MeV; analyzed fission fragment anisotropy data; deduced effective moment of inertia, other fission parameters. Standard rigid rotor theory, limitations discussed.
doi: 10.1007/BF01412159
1982AL26 Z.Phys. A307, 149 (1982) J.M.Alexander, H.Delagrange, M.Rajagopalan, M.F.Rivet, L.C.Vaz Anomalous Behavior of Evaporative H/He from 194Hg Compound Nuclei NUCLEAR REACTIONS 174Yb(20Ne, xp), (20Ne, xα), E=252 MeV; 154Sm(40Ar, xp), (40Ar, xα), E=340 MeV; analyzed σ(evaporation) data. 194Hg deduced decay energy, spin dependence, mechanism. Bohr's independence hypothesis.
doi: 10.1007/BF01414829
1982DU09 Z.Phys. A307, 221 (1982) E.Duek, L.Kowalski, M.Rajagopalan, J.M.Alexander, D.Logan, M.S.Zisman, M.Kaplan Correlations between Fission Fragments for 172 MeV 20Ne + 197Au: A case study for incomplete fusion NUCLEAR REACTIONS 197Au(20Ne, F), E=172 MeV; measured fission (fragment)(fragment)(θ), total kinetic energy, mean mass vs θ, linear momentum transfer; deduced reaction mechanism. Monte Carlo calculation.
doi: 10.1007/BF01438643
1982DU10 Z.Phys. A307, 237 (1982) E.Duek, L.Kowalski, M.Rajagopalan, J.M.Alexander, T.W.Debiak, D.Logan, M.Kaplan, M.Zisman, Y.LeBeyec Coincidence Studies of Heavy Fragment Pairs in the Reaction 343 MeV 40Ar + 197Au NUCLEAR REACTIONS 197Au(40Ar, F), (40Ar, X), E=343 MeV; measured (fragment)(fragment)(θ), total kinetic energy, final mass vs θ, linear momemtum transfer; deduced fission to deep inelastic evolution. Monte Carlo calculation, complete, incomplete fusion mechanisms.
doi: 10.1007/BF01438644
1982KI06 Z.Phys. A306, 323 (1982) M.Kildir, D.Logan, M.Kaplan, M.S.Zisman, D.Guerreau, J.M.Alexander, L.C.Vaz Studies of 4He Emission in Both Fusion-Like and Inelastic Reactions of 340-MeV 40Ar + 238U NUCLEAR REACTIONS 238U(40Ar, αF), E=340 MeV; measured σ(θα, Eα), (fragment)(fragment)α-coin; deduced fusion-fission, sequential fission induced direct, evaporation α emission.
doi: 10.1007/BF01432373
1982RA06 Phys.Rev. C25, 2417 (1982) M.Rajagopalan, D.Logan, J.W.Ball, M.Kaplan, H.Delagrange, M.F.Rivet, J.M.Alexander, L.C.Vaz, M.S.Zisman Charged Particle Emission from 194Hg Compound Nuclei: Energy and spin dependence of fission-evaporation competition NUCLEAR REACTIONS, ICPND 182W(12C, F), (12C, p), (12C, d), (12C, t), (12C, α), E=77-167 MeV; 175Lu(19F, F), (19F, p), (19F, d), (19F, t), (19F, α), E=135, 184 MeV; 174Yb(20Ne, F), (20Ne, p), (20Ne, d), (20Ne, t), (20Ne, α), E=125, 252 MeV; 154Sm(40Ar, F), (40Ar, p), (40Ar, d), (40Ar, t), (40Ar, α), E=196-340 MeV; measured σ(E), fission σ, fusion σ, evaporation residue σ vs E; deduced reaction mechanism. 194Hg deduced fission, evaporation competition spin, energy dependences. Statistical model.
doi: 10.1103/PhysRevC.25.2417
1982RI02 Phys.Rev. C25, 2430 (1982) M.F.Rivet, D.Logan, J.M.Alexander, D.Guerreau, E.Duek, M.S.Zisman, M.Kaplan Energy Equilibration in Composite Nuclei at High Energy and Spin: Correlations between evaporative 1H, 4He, and fission NUCLEAR REACTIONS, Fission 116Sn, 154Sm, 197Au(40Ar, pF), (40Ar, dF), (40Ar, tF), (40Ar, αF), E=333 MeV; measured (fragment)p-, (fragment)d-, (fragment)t-, (fragment)α-coin, σ(fragment θ, θp, Ep), σ(fragment θ, θα, Eα); deduced reaction mechanism. 237Bk, 194Hg, 156Er deduced emission barriers, level density parameters, rms(J). Evaporation, statistical models.
doi: 10.1103/PhysRevC.25.2430
1980BA15 Z.Phys. A295, 153 (1980) R.Babinet, B.Cauvin, J.Girard, J.M.Alexander, T.H.Chiang, J.Galin, B.Gatty, D.Guerreau, X.Tarrago Light Particle Emission in Deeply Inelastic Collisions of 280 MeV 40Ar + 58Ni: Thermal Equilibrium and Angular Momentum Transfer NUCLEAR REACTIONS 58Ni(40Ar, αX), (40Ar, pX), E=280 MeV; measured αX(θ), pX(θ), in-plane, out-of-plane, σ(fragment θ, Eα, θα), σ(fragment θ, Ep, θp); deduced reaction mechanism.
doi: 10.1007/BF01413073
1980CA04 Phys.Rev. C21, 940 (1980) G.L.Catchen, M.Kaplan, J.M.Alexander, M.F.Rivet Semiempirical Methods for Estimating Fragment Spins from Studies of 4He and 1H Emission NUCLEAR REACTIONS 64Zn(11B, α), (11B, p), 63Cu(12C, α), (12C, p), 59Co(16O, α), (16O, p), 103Rh(14N, α), (14N, p), 77Se(40Ar, α), (40Ar, p), E not given; calculated anisotropy, multiplicity; deduced fragment spin in deep-inelastic collisions. Semiempirical correlation study.
doi: 10.1103/PhysRevC.21.940
1980CA27 J.Phys.(Paris), Colloq.C-10, 234 (1980) C.Cabot, H.Gauvin, Y.Le Beyec, H.Delagrange, J.P.Dufour, A.Fleury, Y.Llabador, J.M.Alexander Evaporation Residue and Fission Cross-Sections for the System: 40Ar + 110Pd NUCLEAR REACTIONS, Fission 110Pd(40Ar, xn), (40Ar, xnp), (40Ar, xnα), (40Ar, X), (40Ar, F), E=140-260 MeV; 130Te(40Ar, X), (40Ar, F), (40Ar, xn), (40Ar, xnp), E=164.5-226 MeV; measured σ(evaporation residue), σ(fission), σ(fusion) vs E. 150Gd deduced fission characteristics. Statistical model.
1980LO08 Phys.Rev. C22, 104 (1980) D.Logan, M.Rajagopalan, M.S.Zisman, J.M.Alexander, M.Kaplan, L.Kowalski Rapid Energy Equilibration and Emission of H and He in the Reaction of 340-MeV 40Ar with 197Au NUCLEAR REACTIONS 197Au(40Ar, F), (40Ar, p), (40Ar, d), (40Ar, t), (40Ar, α), E=340 MeV; measured σ(Ep, θp), σ(Ed, θd), σ(Et, θt), σ(Eα, θα), light particle fission fragment-coin; deduced reaction mechanism. 237Bk deduced average spin, equilibration parameters.
doi: 10.1103/PhysRevC.22.104
1980LO11 Phys.Rev. C22, 1080 (1980) D.Logan, H.Delagrange, M.F.Rivet, M.Rajagopalan, J.M.Alexander, M.Kaplan, M.S.Zisman, E.Duek Light-Charged-Paricle Emission in 40Ar-Induced Reactions: A Probe of the Very Early Evolution of the Collisions NUCLEAR REACTIONS, Fission 116Sn, 154Sm, 164Dy, 197Au(40Ar, p), (40Ar, α), (40Ar, F), (40Ar, X), E=222, 274, 340 MeV; measured σ(fragment, θ), (fragment)p-, (fragment)α-coin; deduced rapid energy thermalization, production s(θ) for Li, Be, B, C, N, O.
doi: 10.1103/PhysRevC.22.1080
1980MC04 Phys.Rev. C21, 1261 (1980) Barrier to Complete Fusion for 4He and 1H and That for Evaporation from 194Hg NUCLEAR REACTIONS 59Co(α, X), E ≈ 7-18 MeV; 162Dy(α, X), E(cm) ≈ 16-26 MeV; 208Pb, 209Bi(α, X), E(cm) ≈ 17-22 MeV; 111Cd(p, X), E(cm)=4-10 MeV; 139La(p, X), E(cm) ≈ 5-10 MeV; calculated fusion σ; deduced p, α transmission coefficients. Hill-Wheeler, optical models.
doi: 10.1103/PhysRevC.21.1261
1979DE32 Phys.Rev.Lett. 43, 1490 (1979) H.Delagrange, D.Logan, M.F.Rivet, M.Rajagopalan, J.M.Alexander, M.S.Zisman, M.Kaplan, J.W.Ball Fusion and Emission of 1H and 4He in Reactions between Complex Nuclei At High Energies NUCLEAR REACTIONS 116Sn, 154Sm, 164Dy, 197Au(40Ar, p), (40Ar, α), (40Ar, X), (40Ar, F), E=222-340 MeV; 182W(12C, X), E=77-167 MeV; 116Sn(40Ar, X), E=187 MeV; measured σ(θ), fusion, fission σ(E).
doi: 10.1103/PhysRevLett.43.1490
1979DE38 Phys.Rev. C20, 1731 (1979) H.Delagrange, L.C.Vaz, J.M.Alexander Optical Model Analysis for 16O + 208Pb: Evidence for Dynamic Shape or Density Changes NUCLEAR REACTIONS 208Pb(16O, X), E=80-102 MeV; analyzed fusion, reaction data. 208Pb(16O, 16O), E=80-313 MeV; analyzed σ(θ); deduced dynamical shape or density adjustment during collision. Optical potential, proximity formulation.
doi: 10.1103/PhysRevC.20.1731
1979RA01 Phys.Rev. C19, 54 (1979) M.Rajagopalan, L.Kowalski, D.Logan, M.Kaplan, J.M.Alexander, M.S.Zisman, J.M.Miller Coincidence Studies of Heavy Fragments in Deeply Inelastic Collisions Between Heavy Ions: Sequential Fission Probability in Reactions of 730-MeV 86Kr with Au NUCLEAR REACTIONS 197Au(86Kr, X), E=730 MeV; measured (fragment)(fragment)-coin, correlation; deduced sequential fission probability as a function of inelastic energy transfer.
doi: 10.1103/PhysRevC.19.54
1978DE07 Phys.Rev. C17, 1706 (1978) H.Delagrange, A.Fleury, J.M.Alexander Fission-Evaporation Competition in Pu Isotopes of Mass 235-239 NUCLEAR REACTIONS 233,234,235U(α, xn), X=1-4, E ≤ 46 MeV; measured fusion σ(E).
doi: 10.1103/PhysRevC.17.1706
1978FL05 Phys.Rev. C17, 1721 (1978) A.Fleury, H.Delagrange, J.M.Alexander Statistical-Model Analysis of Fission Isomer Production for 237,238Pu And 239Am NUCLEAR REACTIONS 235,233U, 237Np(α, 2n), E=22-28 MeV; calculated σ(E), isomer production σ(E). Statistical model analysis.
doi: 10.1103/PhysRevC.17.1721
1978MI01 Phys.Rev.Lett. 40, 100 (1978) J.M.Miller, G.L.Catchen, D.Logan, M.Rajagopalan, J.M.Alexander, M.Kaplan, M.S.Zisman Pre-Equilibrium α Emission in Reactions of 724-MeV 86Kr with Au: A Coincidence Study of Direct and Evaporation Mechanisms NUCLEAR REACTIONS Au(84Kr, X), E=724 MeV; measured αHI-coin.
doi: 10.1103/PhysRevLett.40.100
1978MI06 Phys.Rev.Lett. 40, 1074 (1978) J.M.Miller, D.Logan, G.L.Catchen, M.Rajagopalan, J.M.Alexander, M.Kaplan, J.W.Ball, M.S.Zisman, L.Kowalski Energy and Spin Dependence of Fission: 1H and 4He Emission from 194Hg Compound Nuclei NUCLEAR REACTIONS 182W(12C, X), E=98 MeV; 175Lu(19F, X), E=142 MeV; measured σ(θ) for evaporation residues, fission, fusion, p-, α-emission.
doi: 10.1103/PhysRevLett.40.1074
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