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NSR database version of April 11, 2024.

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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
Citations: PlumX Metrics


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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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1994BO26      Phys.Rev. C50, 1006 (1994)

J.Boger, J.M.Alexander

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
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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
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1994GE11      Nucl.Instrum.Methods Phys.Res. A349, 618 (1994)

C.J.Gelderloos, J.M.Alexander

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
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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
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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
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1993EL01      Phys.Rev. C47, 1321 (1993)

A.Elmaani, J.M.Alexander

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
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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
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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
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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
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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
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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
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetT0171.


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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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1988CA18      Phys.Rev. C38, 1692 (1988)

N.Carjan, J.M.Alexander

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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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1984VA01      Phys.Rev.Lett. 52, 396 (1984)

L.C.Vaz, J.M.Alexander

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
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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
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1984VA26      Z.Phys. A318, 231 (1984)

L.C.Vaz, J.M.Alexander

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
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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
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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
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1983VA17      Z.Phys. A312, 163 (1983)

L.C.Vaz, J.M.Alexander

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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0358.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0358.


1980MC04      Phys.Rev. C21, 1261 (1980)

M.A.McMahan, J.M.Alexander

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
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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
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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
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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
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetB0139.


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
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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
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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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