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Search: Author = C.Gregoire

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1993ZI02      Phys.Rev. C47, 1683 (1993)

M.Zielinska-Pfabe, J.Stryjewski, D.Sperber, Ch.Gregoire

Study of a Strongly Damped Collision between Heavy Ions

NUCLEAR REACTIONS 98Mo(98Mo, X), E(cm)=14.7 MeV/nucleon; calculated σ(fragment E, Z), charge variance vs total kinetic energy, mass variance vs time, total kinetic energy. Microscopic, macroscopic model.

doi: 10.1103/PhysRevC.47.1683
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1991GR11      Nucl.Phys. A530, 94 (1991)

C.Gregoire, T.T.S.Kuo, D.B.Stout

Level-Density Parameter of Nuclei at Finite Temperature

NUCLEAR STRUCTURE 40Ca; calculated transition rates, level density parameter vs temperature. Particle-particle, particle-hole ring diagrams, finite temperature RPA.

doi: 10.1016/0375-9474(91)90757-W
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1991JO12      Z.Phys. A340, 63 (1991)

D.Jouan, B.Borderie, M.F.Rivet, C.Cabot, H.Fuchs, H.Gauvin, C.Gregoire, F.Hanappe, D.Gardes, M.Montoya, B.Remaud, F.Sebille

Dynamics and Thermalization in Violent Collisions between 40Ar and Ag at 27 MeV/nucleon

NUCLEAR REACTIONS Ag(40Ar, X), E=27 MeV/nucleon; measured (fragment)(fragment)-coin; deduced reaction mechanism.

doi: 10.1007/BF01284482
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1990AR12      Nucl.Phys. A514, 564 (1990)

D.Ardouin, Z.Basrak, P.Schuck, A.Peghaire, F.Saint-Laurent, H.Delagrange, H.Doubre, C.Gregoire, A.Kyanowski, W.Mittig, J.Peter, Y.P.Viyogi, J.Quebert, C.K.Gelbke, W.G.Lynch, M.Maier, J.Pochodzalla, G.Bizard, F.Lefebvres, B.Tamain, B.Remaud, F.Sebille

Preequilibrium Particles and Mean-Field Effects from Particle-Particle Correlations in Heavy-Ion Collisions

NUCLEAR REACTIONS 197Au, Ti(40Ar, X), E=60 MeV/nucleon; measured (particle)(particle) correlations for X=p, d, α; deduced mean-field, two-body collisions effects. Landau-Vlasov equation analysis.

doi: 10.1016/0375-9474(90)90156-G
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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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1989BO43      Nuovo Cim. 102A, 1301 (1989)

A.Bonasera, C.Gregoire

Ambiguities in the Calculation of Hard-Photon Production in Different Estimates of the Collision Integral

NUCLEAR REACTIONS C(C, γX), E=48, 84 MeV/nucleon; 27Al(19F, γX), E=19 MeV/nucleon; N(C, γX), E=20 MeV/nucleon; Sn(Xe, γX), E=66, 124 MeV/nucleon; calculated hard photon σ(E, θ); deduced ambiguities.

doi: 10.1007/BF02800339
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1989SE10      Nucl.Phys. A501, 137 (1989)

F.Sebille, G.Royer, C.Gregoire, B.Remaud, P.Schuck

Nuclear Dynamics with the (Finite-Range) Gogny Force: Flow effects

NUCLEAR REACTIONS 93Nb(93Nb, X), E=150 MeV/nucleon; calculated average density time evolution. Landau-Vlasov equation, Gogny force.

doi: 10.1016/0375-9474(89)90569-1
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1989SN01      Phys.Lett. 220B, 342 (1989)

K.Sneppen, D.Cussol, C.Gregoire

Determination of Nuclear Properties below Normal Density from the Multifragmentation Pattern

NUCLEAR REACTIONS 50Ti(40Ar, X), E=20-80 MeV/nucleon; calculated fragment mass after preequilibrium emission. Multi-fragmentation plus evaporation model.

doi: 10.1016/0370-2693(89)90884-8
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1989SU10      Nucl.Phys. A495, 73c (1989)

E.Suraud, D.Cussol, Ch.Gregoire, D.Boilley, M.Pi, P.Schuck, B.Remaud, F.Sebille

Explosions in Landau Vlasov Dynamics

NUCLEAR REACTIONS 40Ca(40Ca, X), E=20-100 MeV/nucleon; 50Ti(40Ar, X), E=20, 44 MeV/nucleon; 197Au(40Ar, X), E=60 MeV/nucleon; calculated average density time evolution. Landau-Vlasov simulations.

doi: 10.1016/0375-9474(89)90309-6
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1988AR04      Z.Phys. A329, 505 (1988)

D.Ardouin, Z.Basrak, P.Schuck, A.Peghaire, H.Delagrange, H.Doubre, C.Gregoire, A.Kyanowski, W.Mittig, J.Peter, F.Saint-Laurent, B.Zwieglinski, Y.P.Viyogi, C.K.Gelbke, W.G.Lynch, M.Maier, J.Pochodzalla, J.Quebert, G.Bizard, F.Lefebvres, B.Tamain

Evidence for Persisting Mean Field Effects at E/A = 60 MeV from Particle-Particle Correlation Measurements and Theoretical Investigations with the Landau Vlasov Equation

NUCLEAR REACTIONS Ti, 197Au(Ar, X), E=60 MeV/nucleon; measured pp(θ); deduced mean field effects role. Landau-Vlasov equation.


1988BO21      Nucl.Phys. A483, 738 (1988)

A.Bonasera, M.Di Toro, C.Gregoire

Statistical Pion and Hard Photon Production in Medium-Energy Heavy-Ion Collisions

NUCLEAR REACTIONS 9Be(γ, X), E ≈ 25-150 MeV; calculated absorption σ(E). 238U, 12C(12C, γX), (12C, πX), E=48-84 MeV/nucleon; 58Ni(12C, X), E=60-84 MeV/nucleon; calculated pion, γ production σ.

doi: 10.1016/0375-9474(88)90095-4
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1988GR03      Z.Phys. A329, 497 (1988)

C.Gregoire, H.Delagrange, K.Pomorski, K.Dietrich

Neutron Energy Distributions in the Dynamical Competition between Evaporation and Fission

NUCLEAR STRUCTURE 194Hg, 158Er; calculated neutron yield vs En. Dynamical evaporation, fission competition.


1988SA09      Phys.Lett. 202B, 190 (1988)

F.Saint-Laurent, A.Kyanowski, D.Ardouin, H.Delagrange, H.Doubre, C.Gregoire, W.Mittig, A.Peghaire, J.Peter, G.Bizard, F.Lefebvres, B.Tamain, J.Quebert, Y.P.Viyogi, J.Pochodzalla, C.K.Gelbke, W.Lynch, M.Maier

Possible Dynamical Limitations to Excitation Energy Storage in Nuclei

NUCLEAR REACTIONS 197Au(40Ar, X), E=60 MeV/nucleon; measured charge particle multiplicities; deduced excitation energy storage dynamical limits.

doi: 10.1016/0370-2693(88)90005-6
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1988ZI01      Phys.Rev. C37, 2594 (1988)

M.Zielinska-Pfabe, C.Gregoire

Dispersions in Semiclassical Dynamics

NUCLEAR REACTIONS 16O(16O, X), E=10 MeV/nucleon; calculated fragment mass dispersion vs inter-ion distance. Semi-classical dynamics.

doi: 10.1103/PhysRevC.37.2594
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1987BO03      Nucl.Phys. A463, 653 (1987)

A.Bonasera, M.di Toro, C.Gregoire

Dissipative Effects in Projectile Fragmentation

NUCLEAR REACTIONS 27Al(40Ar, X), E=35 MeV/nucleon; calculated abraded nucleons number vs impact parameter; 27Al(40Ar, X), E=1760 MeV; calculated σ vs fragment mass. 27Al(40Ar, X), E=44 MeV/nucleon; calculated mass-mass correlations, orbiting, emission angles, fragment mean kinetic energies, parallel momentum, orthogonal, widths. 58Ni(40Ar, X), E=44 MeV/nucleon; calculated dissipation, mean kinetic energies; 181Ta(40Ar, X), E=40, 60 MeV/nucleon; calculated projectile-, target-like, participant velocities. Two-step model.

doi: 10.1016/0375-9474(87)90637-3
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1987GI05      Phys.Lett. 192B, 39 (1987)

A.Gillibert, W.Mittig, L.Bianchi, A.Cunsolo, B.Fernandez, A.Foti, J.Gastebois, C.Gregoire, Y.Schutz, C.Stephan

New Mass Measurements Far From Stability

NUCLEAR REACTIONS Ta(40Ar, X), E=60 MeV/nucleon; measured fragment rigidity, tof. 17B, 19,20C, 20,21,22N, 23,24O, 24,25,26F, 27,28Ne, 30,31,32Na, 31,32,33Mg, 32,33,34,35Al, 36,37Si, 37,38P deduced mass excess.

doi: 10.1016/0370-2693(87)91138-5
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1987GR04      Phys.Lett. 186B, 14 (1987)

C.Gregoire, B.Remaud, F.Sebille, L.Vinet

Peripheral Reactions at Intermediate Energies in Landau-Vlasov Dynamics

NUCLEAR REACTIONS 27Al(40Ar, X), E=44 MeV/nucleon; calculated target fragment average recoil vs projectile-like mass, projectile-like fragment mean energy vs mass, bombarding energy per nucleon vs abraded nucleon number; 40Ca(16O, X), E=25 MeV/nucleon; calculated time evolution; 108Ag(40Ar, X), E=35 MeV/nucleon; calculated projectile-like fragment isospin vs time. Landau-Vlasov dynamics.

doi: 10.1016/0370-2693(87)90504-1
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1987GR09      Nucl.Phys. A465, 317 (1987)

C.Gregoire, B.Remaud, F.Sebille, L.Vinet, Y.Raffray

Semi-Classical Dynamics of Heavy-Ion Reactions

NUCLEAR REACTIONS 27Al(40Ar, X), E=27, 35 MeV/nucleon; calculated collision dynamics characteristics. Extended Vlasov equation.

doi: 10.1016/0375-9474(87)90437-4
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1987GR29      J.Phys.(Paris), Colloq.C-2, 203 (1987)

C.Gregoire, B.Remaud, F.Sebille, L.Vinet, D.Jacquet

Low and Intermediate Energy Heavy Ion Collisions in the Semi-Classical Microscopic Description

NUCLEAR REACTIONS 27Al(40Ar, X), E=27, 35, 44 MeV/nucleon; 28Si(28Si, X), E=12 MeV/nucleon; 238U(40Ar, X), E=27 MeV/nucleon; 40Ca(16O, X), E=5.5 MeV/nucleon; calculated fragment mass-mass correlations, ejectile energies, σ(θ). Landau-Vlasov dynamics.


1987HI01      Phys.Rev.Lett. 58, 759 (1987)

R.Hingmann, W.Kuhn, V.Metag, R.Muhlhans, R.Novotny, A.Ruckelshausen, W.Cassing, H.Emling, R.Kulessa, H.J.Wollersheim, B.Haas, J.P.Vivien, A.Boullay, H.Delagrange, H.Doubre, C.Gregoire, Y.Schutz

γ Rays from Peripheral and Central Collisions in the Reaction 40Ar + 158Gd at 44 MeV/Nucleon

NUCLEAR REACTIONS 158Gd(40Ar, X), E=44 MeV/nucleon; measured γ spectra, yields, γ(fragment)-coin, σ(Eγ, θγ); deduced slope parameters, σ, γ-multiplicity, products excitation energies.

doi: 10.1103/PhysRevLett.58.759
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1987MI27      Phys.Rev.Lett. 59, 1889 (1987)

W.Mittig, J.M.Chouvel, Zhan Wen Long, L.Bianchi, A.Cunsolo, B.Fernandez, A.Foti, J.Gastebois, A.Gillibert, C.Gregoire, Y.Schutz, C.Stephan

Measurement of Total Reaction Cross Sections of Exotic Neutron-Rich Nuclei

NUCLEAR REACTIONS Si(40Ar, X), E=60 MeV/nucleon; measured total reaction σ for fragments with Z=5-12; deduced reduced strong absorption radius vs neutron excess.

doi: 10.1103/PhysRevLett.59.1889
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1987PO03      Phys.Rev. C35, 1695 (1987)

J.Pochodzalla, C.K.Gelbke, W.G.Lynch, M.Maier, D.Ardouin, H.Delagrange, H.Doubre, C.Gregoire, A.Kyanowski, W.Mittig, A.Peghaire, J.Peter, F.Saint-Laurent, B.Zwieglinski, G.Bizard, F.Lefebvres, B.Tamain, J.Quebert, Y.P.Viyogi, W.A.Friedman, D.H.Boal

Two-Particle Correlations at Small Relative Momenta for 40Ar-Induced Reactions on 197Au at E/A = 60 MeV

NUCLEAR REACTIONS 197Au(40Ar, X), E=60 MeV/nucleon; measured σ(fragment E, θ) for X=p, d, t, α, pp-, pt-, p3He-, dt-, pα-, tα-, dα-, 3Heα-, αα-, p7Li-, α7Li-, pd-, dd-, tt-, t3He-correlation functions, coincidence yields, spectra; deduced source radii. ΔE-E telscopes, NaI scintillator. Statistical model.

doi: 10.1103/PhysRevC.35.1695
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1987VI03      Nucl.Phys. A468, 321 (1987)

L.Vinet, C.Gregoire, P.Schuck, B.Remaud, F.Sebille

A Study of the Disintegration of Highly Excited Nuclei with the Vlasov-Uehling-Uhlenbeck Equation

NUCLEAR STRUCTURE 40Ca; calculated fragmentation density profile time evolution, anisotropy, monopole Landau parameters, energy per nucleon, density distributions. 40Ar; calculated energy, excitation energy per nucleon, mean kinetic energy time evolution in fragmentation.

doi: 10.1016/0375-9474(87)90520-3
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1986AU04      Phys.Lett. 169B, 161 (1986)

G.Auger, E.Plagnol, D.Jouan, C.Guet, D.Heuer, M.Maurel, H.Nifenecker, C.Ristori, F.Schussler, H.Doubre, C.Gregoire

Limits of the Observation of Fusion-Like Products in the 40Ar + 27Al System

NUCLEAR REACTIONS 27Al(40Ar, X), E=27-40 MeV/nucleon; measured σ(fragment E) vs E for Z=13, 15, 17, 19. 67Ga deduced formation entrance channel dependence, predisintegration excitation limit.

doi: 10.1016/0370-2693(86)90642-8
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1986DE09      Z.Phys. A323, 437 (1986)

H.Delagrange, C.Gregoire, F.Scheuter, Y.Abe

Dynamical Decay of Nuclei at High Temperature: Competition between particle emission and fission decay

NUCLEAR STRUCTURE 194Hg, 170Yb; calculated fission width vs neutron multiplicity, p, n, α-multiplicity vs temperature following decay. 248Cf; calculated fission width vs neutron multiplicity.


1986GI10      Phys.Lett. 176B, 317 (1986)

A.Gillibert, L.Bianchi, A.Cunsolo, B.Fernandez, A.Foti, J.Gastebois, Ch.Gregoire, W.Mittig, A.Peghaire, Y.Schutz, C.Stephan

Mass Measurement of Light Neutron-Rich Fragmentation Products

NUCLEAR REACTIONS Ta(40Ar, X)20N/21N/23O/21F/22F/23F/24F/25F/26F/27F, E=44 MeV/nucleon; measured fragment yield vs mass. 20,21N, 23O, 24,25,26F deduced mass excess, two-neutron separation energy. Tof.

doi: 10.1016/0370-2693(86)90171-1
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1986KY01      Phys.Lett. 181B, 43 (1986)

A.Kyanowski, F.Saint-Laurent, D.Ardouin, H.Delagrange, H.Doubre, C.Gregoire, W.Mittig, A.Peghaire, J.Peter, Y.P.Viyogi, B.Zwieglinski, J.Quebert, G.Bizard, F.Lefebvres, B.Tamain, J.Pochodzalla, C.K.Gelbke, W.Lynch, M.Maier

Multiplicity Dependent Light Particle Correlations in 40Ar + 197Au Reaction at E/A = 60 MeV

NUCLEAR REACTIONS 197Au(40Ar, X), E=60 MeV/nucleon; measured pp-, pα-, αα-, d3He-, p7Li-, dα- correlation functions, multiplicity spectrum; deduced emitting source space-time extent. Si-NaI telescopes. Final state interaction model.

doi: 10.1016/0370-2693(86)91251-7
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1986LU04      Nucl.Phys. A452, 351 (1986)

K.Lutzenkirchen, J.V.Kratz, G.Wirth, W.Bruchle, K.Summerer, R.Lucas, J.Poitou, C.Gregoire

Angular Distributions in Quasi-Fission Reactions

NUCLEAR REACTIONS 208Pb(50Ti, X), E=5, 5.5 MeV/nucleon; 208Pb(56Fe, X), E=5.7, 6.1, 6.8, 8.3 MeV/nucleon; measured fragment K X-rays, relative σ(fragment θ, Z); deduced tilting variance, tilting mode degree of relaxation, γ-multiplicity, timescale comparison.

doi: 10.1016/0375-9474(86)90312-X
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1986VI03      Phys.Lett. 172B, 17 (1986)

L.Vinet, F.Sebille, C.Gregoire, B.Remaud, P.Schuck

Solution of the Vlasov Equation for Compressed and Heated Spherical Nuclei

NUCLEAR STRUCTURE 40Ca, 16O; calculated rms radius, density time evolutions.

doi: 10.1016/0370-2693(86)90208-X
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1985AR25      Nucl.Phys. A447, 585c (1985)

D.Ardouin, H.Delagrange, H.Doubre, C.Gregoire, A.Kyanowski, W.Mittig, A.Peghaire, J.Peter, F.Saint-Laurent, Y.P.Viyogi, B.Zwieglinski, J.Pochodzalla, C.K.Gelbke, W.Lynch, M.Maier, G.Bizard, F.Lefebvres, B.Tamain, J.Quebert

Light Particle Correlations in Ar + Au Reaction at 60 MeV/A

NUCLEAR REACTIONS 197Au(40Ar, 2p), (40Ar, 2α), (40Ar, dα), (40Ar, pα), E=60 MeV/nucleon; measured azimuthal (particle)(particle)(φ), p, α-pair polar correlation function.

doi: 10.1016/0375-9474(86)90634-2
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1985AU05      Z.Phys. A321, 243 (1985)

G.Auger, D.Jouan, E.Plagnol, F.Pougheon, F.Naulin, H.Doubre, C.Gregoire

Observation of Composite Nuclei at Very High Temperatures

NUCLEAR REACTIONS 27Al(40Ar, X), E=780 MeV; measured σ(fragment θ, E) for fragment Z=19, 21, σ(fragment θ, Z); deduced composite nuclei formation evidence.

doi: 10.1007/BF01493444
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1985DI03      Z.Phys. A320, 321 (1985)

M.Di Toro, C.Gregoire

Semi-Classical Phase Space Approach for the Charge Equilibration Fluctuations in Heavy Ion Reactions

NUCLEAR REACTIONS 197Au(136Xe, X), (86Kr, X), 100Mo(86Kr, X), 74Ge(208Pb, X), 96Mo(86Kr, X), E not given; calculated internuclear distance for fusion barrier location, corresponding GDR, charge variances. 96Mo(86Kr, X), E not given; calculated stiffness parameter, GDR, nucleus-nucleus potential vs internuclear distance; deduced in-phase constituent isovector GDR excitation role.


1985GR07      Nucl.Phys. A436, 365 (1985)

C.Gregoire, B.Remaud, F.Scheuter, F.Sebille

Semiclassical Approaches to Proton Emission in Intermediate-Energy Heavy-Ion Reactions

NUCLEAR REACTIONS 12C(12C, pX), E=1032 MeV; calculated σ(Ep, θp); deduced one- to two-body process transition. Semi-classical approach.

doi: 10.1016/0375-9474(85)90203-9
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1985LU01      Z.Phys. A320, 529 (1985)

K.Lutzenkirchen, J.V.Kratz, G.Wirth, W.Bruchle, L.Dorr, K.Summerer, R.Lucas, J.Poitou, C.Gregoire, S.Bjornholm

Angular Distributions in Quasi-Fission Reactions: Evidence for incomplete relaxation of the tilting mode

NUCLEAR REACTIONS 208Pb(50Ti, X), E=5, 5.5 MeV/nucleon; 208Pb(56Fe, X), E=5.7-8.3 MeV/nucleon; measured σ(fragment θ, Z); deduced reaction mechanism.


1985PO09      Phys.Rev.Lett. 55, 177 (1985)

J.Pochodzalla, W.A.Friedman, C.K.Gelbke, W.G.Lynch, M.Maier, D.Ardouin, H.Delagrange, H.Doubre, C.Gregoire, A.Kyanowski, W.Mittig, A.Peghaire, J.Peter, F.Saint-Laurent, Y.P.Viyogi, B.Zwieglinski, G.Bizard, F.Lefebvres, B.Tamain, J.Quebert

Nuclear Temperatures and the Population of Particle-Unstable States of 6Li in 40Ar-Induced Reactions on 197Au at E/A = 60 MeV

NUCLEAR REACTIONS 197Au(40Ar, dα), (40Ar, 6Li), E=60 MeV/nucleon; measured dα(θ), σ(E(6Li), θ(6Li)). 6Li deduced particle unstable state relative populations.

doi: 10.1103/PhysRevLett.55.177
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1985PO18      Phys.Lett. 161B, 256 (1985)

J.Pochodzalla, W.A.Friedman, C.K.Gelbke, W.G.Lynch, M.Maier, D.Ardouin, H.Delagrange, H.Doubre, C.Gregoire, A.Kyanowski, W.Mittig, A.Peghaire, J.Peter, F.Saint-Laurent, Y.P.Viyogi, B.Zwieglinski, G.Bizard, F.Lefebvres, B.Tamain, J.Quebert

Three-Particle Effects Observed in Two-Particle Correlation Measurements

NUCLEAR REACTIONS 197Au(40Ar, pα), E=60 MeV/nucleon; measured pα-coin; deduced three-particle effects. 5Li deduced production, decay mechanisms.

doi: 10.1016/0370-2693(85)90756-7
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1985PO19      Phys.Lett. 161B, 275 (1985)

J.Pochodzalla, W.A.Friedman, C.K.Gelbke, W.G.Lynch, M.Maier, D.Ardouin, H.Delagrange, H.Doubre, C.Gregoire, A.Kyanowski, W.Mittig, A.Peghaire, J.Peter, F.Saint-Laurent, Y.P.Viyogi, B.Zwieglinski, G.Bizard, F.Lefebvres, B.Tamain, J.Quebert

Emission Temperatures in Intermediate Energy Nuclear Collisions from the Relative Populations of Widely Separated States in 5Li and 8Be

NUCLEAR REACTIONS 197Au(40Ar, pα), (40Ar, d3He), (40Ar, 2α), (40Ar, p7Li), E=60 MeV/nucleon; measured (particle)(particle)-coin; deduced emission temperatures.

doi: 10.1016/0370-2693(85)90760-9
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1984LE13      Nucl.Phys. A423, 175 (1984)

S.Leray, X.S.Chen, G.Y.Fan, C.Gregoire, H.Ho, C.Mazur, C.Ngo, A.Pfoh, M.Ribrag, L.Schad, E.Tomasi, J.P.Wurm

Investigation of Fast Fission in the 35Cl + 238U System

NUCLEAR REACTIONS 238U(35Cl, F), E=250-350 MeV; measured fission fragment mass distribution characteristics; deduced fast fission evidence.

doi: 10.1016/0375-9474(84)90304-X
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1984LE16      Nucl.Phys. A425, 345 (1984)

S.Leray, G.Nebbia, C.Gregoire, G.La Rana, P.Lhenoret, C.Mazur, C.Ngo, M.Ribrag, E.Tomasi, S.Chiodelli, J.L.Charvet, C.Lebrun

Investigation of the 40Ar + 197Au, 238U Systems at 44 MeV/u

NUCLEAR REACTIONS 238U, 197Au(40Ar, F), E=44 MeV/nucleon; measured fission(fragment)(fragment)(θ); deduced linear momentum transfer role in fission.

doi: 10.1016/0375-9474(84)90079-4
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1984LU01      Nucl.Phys. A413, 516 (1984)

R.Lucas, C.Gregoire, C.Ngo, J.Poitou, E.Tomasi, A.Gobbi, A.Olmi, H.Sann, G.Wirth, J.V.Kratz, U.Lynen

Equilibration of the Neutron-to-Proton Ratio for Heavy Asymmetric Systems in Heavy-Ion Collisions

NUCLEAR REACTIONS 74Ge(208Pb, X), E=1550 MeV; 197Au(86Kr, X), E=550 MeV; measured σ(fragment) vs mass, charge, variances; deduced neutron to proton ratio equilibration differences. Heavy asymmetric systems.

doi: 10.1016/0375-9474(84)90425-1
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1984SC43      Phys.Lett. 149B, 303 (1984)

F.Scheuter, C.Gregoire, H.Hofmann, J.R.Nix

Fission-Fragment Kinetic-Energy Distributions from a Two-Dimensional Fokker-Planck Equation

NUCLEAR REACTIONS 209Bi(α, F), E not given; calculated fission fragment kinetic energy distribution, variance vs temperature. Two-dimensional Fokker-Planck equation.

doi: 10.1016/0370-2693(84)90411-8
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1983GR19      Phys.Lett. 127B, 308 (1983)

C.Gregoire, B.Remaud

Cluster Jets as a Possible α Emission Mechanism in Intermediate Energy Heavy Ion Collisions

NUCLEAR REACTIONS 164Dy(40Ar, α), E=1600 MeV; calculated σ(Eα); deduced reaction mechanism. Semi-classical α-clustering model.

doi: 10.1016/0370-2693(83)91006-7
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1982BE34      Nucl.Phys. A385, 319 (1982)

V.Bernard, C.Gregoire, C.Mazur, C.Ngo, M.Ribrag, G.Y.Fan, P.Gonthier, H.Ho, W.Kuhn, J.P.Wurm

Further Experimental Study of Fast Fission with the Cl + Au System

NUCLEAR REACTIONS 197Au(35Cl, F), (35Cl, X), E=204-317 MeV; measured fission induced σ(fragment θ), σ(fusion) versus mass; deduced reaction mechanism. Semi-static model.

doi: 10.1016/0375-9474(82)90175-0
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1982GR16      Nucl.Phys. A383, 392 (1982)

C.Gregoire, C.Ngo, B.Remaud

Fast fission Phenomenon, Deep Inelastic Reactions and Compound Nucleus Formation Described within a Dynamical Macroscopic Model

NUCLEAR REACTIONS 165Ho(40Ar, X), (40Ar, F), E=180-391 MeV; calculated mass asymmetry radial distance, σ(fusion) vs E, σ(fragment, mass), σ(fragment E, mass); deduced deep inelastic collision, fast fission, compound nucleus formation angular momentum range. Dynamical macroscopic model.

NUCLEAR STRUCTURE 205At; calculated sudden, adiabatic potentials. Dynamical macroscopic model.

doi: 10.1016/0375-9474(82)90084-7
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1982NO10      Phys.Rev. C26, 1114 (1982)

L.Nowicki, M.Berlanger, B.Borderie, C.Cabot, P.del Marmol, Y.El Masri, C.Gregoire, F.Hanappe, C.Ngo, B.Tamain

Collective Modes Associated with the Proton-Induced Fission of 209Bi

NUCLEAR REACTIONS 209Bi(p, F), E=60 MeV; measured fission fragment mass distribution, γ-multiplicity first, second moments, < Eγ >; deduced scission point shell effects, fragment spin dependence on rotational modes. 210Po deduced fission mechanism. Moretto-Schmitt model.

doi: 10.1103/PhysRevC.26.1114
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1982TO04      J.Phys.(Paris), Lett. 43, L-115 (1982)

E.Tomasi, C.Gregoire, C.Ngo, B.Remaud

Macroscopic Dynamics of the Fusion Process

NUCLEAR REACTIONS, ICPND 27Al(16O, X), E(cm) ≈ 16-100 MeV; 40Ca(40Ca, X), E(cm) ≈ 60-100 MeV; 63Cu(24Mg, X), E(cm) ≈ 7-200 MeV; 35Cl(58Ni, X), E(cm) ≈ 67-100 MeV; 109Ag(40Ar, X), E(cm) ≈ 100-200 MeV; 165Ho(40Ar, X), E(cm) ≈ 143-333 MeV; calculated fusion σ vs E; deduced reaction mechanism. Macroscopic dynamical model.

doi: 10.1051/jphyslet:01982004304011500
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1981BO15      Z.Phys. A299, 263 (1981)

B.Borderie, M.Berlanger, D.Gardes, F.Hanappe, L.Nowicki, J.Peter, B.Tamain, S.Agarwal, J.Girard, C.Gregoire, J.Matuszek, C.Ngo

A Possible Mechanism in Heavy Ion Induced Reactions: 'Fast fission process'

NUCLEAR REACTIONS, Fission 165Ho(40Ar, F), E=180, 200, 230, 243, 280, 315, 340, 391 MeV; 181Ta(24Mg, F), E=270, 335, 340 MeV; Re(20Ne, F), E=124, 206 MeV; measured σ(fusion), L(critical), fragment mass vs compound nucleus excitation, angular momentum; deduced fast fission process.

doi: 10.1007/BF01443944
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1981GR02      Phys.Lett. 99B, 17 (1981)

C.Gregoire, C.Ngo, B.Remaud

Three Dissipative Regimes in Heavy Ion Reactions- A Macroscopic Dynamical Model

NUCLEAR REACTIONS 165Ho(40Ar, X), E=340 MeV; 92Mo(86Kr, X), E=430 MeV; calculated fragment mass vs excitation energy, fragment mass variance vs energy loss; deduced dissipation from compound nucleus formation, deep inelastic collision, fast fission. Macroscopic dynamical model.

doi: 10.1016/0370-2693(81)90795-4
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1981GR21      Z.Phys. A303, 293 (1981)

C.Gregoire, E.Martschew

The Effect of a Temperature Dependent Friction Force on Fusion Cross Sections

NUCLEAR REACTIONS 197Au(40Ar, X), E=217, 227, 248 MeV; 197Au(63Cu, X), E=365, 443 MeV; calculated σ(fusion). Phenomenological model, temperature dependent friction coefficients.


1980BO27      Z.Phys. A298, 235 (1980)

B.Borderie, R.Bimbot, C.Cabot, D.Gardes, L.Nowicki, B.Tamain, C.Gregoire, C.Ngo, M.Berlanger, F.Hanappe

Limitation to the Fusion Cross Section for the System Mg + Cu at High Energy

NUCLEAR REACTIONS Cu(24Mg, X), E=161-341 MeV; measured σ(θ) for evaporation residue, σ(fusion, E); deduced critical angular momentum. Sharp cutoff model.

doi: 10.1007/BF01418662
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1979HO30      Z.Phys. A293, 229 (1979)

H.Hofmann, C.Gregoire, R.Lucas, C.Ngo

A Theoretical Model for the Charge Equilibration in Heavy Ion Collisions

NUCLEAR REACTIONS 92Mo(86Kr, X), E=430 MeV; 197Au(136Xe, X), E=900 MeV; calculated fragment production σ. Quantal mass equation, dynamical treatment of charge equilibration.

doi: 10.1007/BF01435592
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