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NSR database version of May 21, 2024.

Search: Author = A.Guarnera

Found 21 matches.

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1999CO25      Acta Phys.Pol. B30, 1573 (1999)

M.Colonna, M.Di Toro, A.Guarnera, S.Maccarone, M.Zielinska-Pfabe, H.H.Wolter

Role of Fluctuations in Heavy Ion Reactions

1999GR02      Phys.Rev. C59, 810 (1999)

V.Greco, A.Guarnera, M.Colonna, M.Di Toro

Dynamical Effects of Momentum Dependence of the Nuclear Mean Field in Medium Energy Heavy Ion Collisions

NUCLEAR REACTIONS 27Al(84Kr, X), E=34.4 MeV/nucleon; 27Al(139La, X), E=55 MeV/nucleon; calculated nucleon emission time evolution, angular distributions. 58Ni(36Ar, X), E=95 MeV/nucleon; calculated nucleons rapidity, angular distributions; deduced mean field momentum dependence effects.

doi: 10.1103/PhysRevC.59.810
Citations: PlumX Metrics

1998CO33      Nucl.Phys. A642, 449 (1998)

M.Colonna, M.Di Toro, A.Guarnera, S.Maccarone, M.Zielinska-Pfabe, H.H.Wolter

Fluctuations and Dynamical Instabilities in Heavy-Ion Reactions

NUCLEAR REACTIONS 58Ni(58Ni, X), E=30 MeV/nucleon; calculated density vs time, fragments mass distribution features; deduced role of fluctuations.

doi: 10.1016/S0375-9474(98)00542-9
Citations: PlumX Metrics

1998GR27      Nuovo Cim. 111A, 865 (1998)

V.Greco, M.Colonna, M.Di Toro, A.Guarnera

Dynamical Effects of Momentum Dependence of the Nuclear Mean Field

NUCLEAR REACTIONS 27Al(139La, X), E=55 MeV/nucleon; calculated nucleon emission rate vs time, angular distributions. 58Ni(36Ar, X), E=95 MeV/nucleon; calculated density distributions vs time; deduced mean field momentum dependence effects.

doi: 10.1007/BF03035971
Citations: PlumX Metrics

1998RI04      Phys.Lett. 430B, 217 (1998)

M.F.Rivet, Ch.O.Bacri, B.Borderie, J.D.Frankland, M.Assenard, G.Auger, F.Bocage, R.Bougault, R.Brou, Ph.Buchet, A.Chbihi, J.Colin, R.Dayras, A.Demeyer, D.Dore, D.Durand, P.Eudes, E.Galichet, E.Genouin-Duhamel, E.Gerlic, M.Germain, D.Guinet, P.Lautesse, J.L.Laville, J.F.Lecolley, A.Le Fevre, T.Lefort, R.Legrain, N.Le Neindre, O.Lopez, M.Louvel, L.Nalpas, A.D.Nguyen, M.Parlog, J.Peter, E.Plagnol, A.Rahmani, T.Reposeur, E.Rosato, F.Saint-Laurent, S.Salou, M.Squalli, J.C.Steckmeyer, M.Stern, G.Tabacaru, B.Tamain, L.Tassan-Got, O.Tirel, D.Vintache, C.Volant, J.P.Wieleczko, A.Guarnera, M.Colonna, P.Chomaz

Independence of Fragment Charge Distributions of the Size of Heavy Multifragmenting Sources

NUCLEAR REACTIONS Sn(129Xe, X), E=32 MeV/nucleon; 238U(155Gd, X), E=36 MeV/nucleon; measured fragments charge, velocity, multiplicity distributions; deduced fragmentation mechanism features. Statistical model calculations.

doi: 10.1016/S0370-2693(98)00525-5
Citations: PlumX Metrics

1997BA82      J.Phys.(London) G23, 1341 (1997)

V.Baran, M.Cabibbo, Y.Cai, M.Colonna, M.Di Toro, A.Guarnera

Mass and Charge Symmetry in Fusion Dynamics

NUCLEAR REACTIONS 150Sm(16O, X), E=160 MeV; 76Ge(86Kr, X), E=258 MeV; calculated mass quadrupole moment vs time, n, α emission probabilities from compound nucleus; 100Mo(64Ni, X), E=237 MeV; 148Sm(16O, X), E=83 MeV; calculated dipole moment components; 238U(64Ni, X), E=6.53 MeV/nucleon; calculated mass quadrupole moment vs time; deduced fusion-fission process mass, charge symmetry effects. Microscopic Landau-Vlasov transport equations.

doi: 10.1088/0954-3899/23/10/023
Citations: PlumX Metrics

1997CO02      Nucl.Phys. A613, 165 (1997)

M.Colonna, Ph.Chomaz, A.Guarnera

Study of Multifragmentation Patterns Induced by Spinodal Instabilities

NUCLEAR STRUCTURE A=40; A=100; A=210; calculated typical fragmentation events characteristics 3D system at half normal density, temperature=3 MeV. Stochastic mean field approach, spinodal instabilities.

doi: 10.1016/S0375-9474(96)00327-2
Citations: PlumX Metrics

1997GU11      Phys.Lett. 403B, 191 (1997)

A.Guarnera, Ph.Chomaz, M.Colonna, J.Randrup

Multifragmentation with Brownian One-Body Dynamics

NUCLEAR STRUCTURE 197Au; calculated fragment multiplicity vs time, charge distribution after compression to double density. Brownian one-body dynamics.

doi: 10.1016/S0370-2693(97)00515-7
Citations: PlumX Metrics

1996BA25      Nucl.Phys. A599, 29c (1996)

V.Baran, M.Colonna, M.Di Toro, A.Guarnera, V.N.Kondratyev, A.Smerzi

The Many Facets of Giant Resonances at High Excitation Energies

NUCLEAR REACTIONS 90Zr(36Ar, X), E=27 MeV/nucleon; calculated compound system time evolution, other aspects, GDR decay rate.

NUCLEAR STRUCTURE 40Ca, 120Sn, 208Pb; calculated GDR width vs temperature. Linearized Landau-Vlasov equation.

doi: 10.1016/0375-9474(96)00045-0
Citations: PlumX Metrics

1996BA27      Nucl.Phys. A600, 111 (1996)

V.Baran, M.Colonna, M.Di Toro, A.Guarnera, A.Smerzi

Giant Dipole Emission as a Probe of the Entrance Channel Dynamics

NUCLEAR REACTIONS Sm(O, X), E=83 MeV; Mo(Ni, X), E=237 MeV; Pd(S, X), E=150 MeV; Se(Ni, X), E=249 MeV; calculated density contours, dipole moment, mass quadrupole moment time evolution, GDR strength function; deduced entrance channel dynamics related features.

doi: 10.1016/0375-9474(96)00014-0
Citations: PlumX Metrics

1996GU06      Phys.Lett. 373B, 267 (1996)

A.Guarnera, M.Colonna, Ph.Chomaz

3D Stochastic Mean-Field Simulations of the Spinodal Fragmentation of Dilute Nuclei

NUCLEAR STRUCTURE A=210; calculated Dalitz plots for three largest final fragments, T=3 MeV. Spinodal fragmentation, dilute nuclei, 3D stochastic mean field simulations.

doi: 10.1016/0370-2693(96)00152-9
Citations: PlumX Metrics

1996JA19      Phys.Lett. 386B, 23 (1996)

B.Jacquot, A.Guarnera, Ph.Chomaz, M.Colonna

Validity of Stochastic Mean Field Simulations of Classical Liquid-Gas Decomposition

doi: 10.1016/0370-2693(96)00899-4
Citations: PlumX Metrics

1996JA23      Phys.Rev. C54, 3025 (1996)

B.Jacquot, A.Guarnera, Ph.Chomaz, M.Colonna

Regularity and Chaos in Vlasov Evolution of Nuclear Matter

doi: 10.1103/PhysRevC.54.3025
Citations: PlumX Metrics

1995CH16      Nucl.Phys. A583, 305c (1995)

Ph.Chomaz, M.Colonna, A.Guarnera, B.Jacquot

Fluctuations and Instabilities in Multifragmentation

doi: 10.1016/0375-9474(94)00677-F
Citations: PlumX Metrics

1995CO03      Nucl.Phys. A583, 525c (1995)

M.Colonna, M.Di Toro, A.Guarnera, V.Latora, A.Smerzi, J.Zhong

Neck Instabilities in Deep Inelastic Collisions at Medium Energies

NUCLEAR REACTIONS 90Zr(60Ni, X), E=15-80 MeV/nucleon; calculated reaction plane density plots, mean density, density variation time evolution; deduced neck instabilities onset related features.

doi: 10.1016/0375-9474(94)00714-X
Citations: PlumX Metrics

1995CO09      Phys.Rev. C51, 2671 (1995)

M.Colonna, Ph.Chomaz, A.Guarnera, B.Jacquot

Spinodal Instabilities in Expanding Fermi Liquids

doi: 10.1103/PhysRevC.51.2671
Citations: PlumX Metrics

1995CO10      Nucl.Phys. A589, 160 (1995)

M.Colonna, M.Di Toro, A.Guarnera

Mean Field Instabilities in Dissipative Heavy Ion Collisions

NUCLEAR REACTIONS Zr(Ni, X), E=15-180 MeV/nucleon; calculated mean density, variance vs time evolution; deduced new mechanisms role on mean field instabilities.

doi: 10.1016/0375-9474(95)00066-A
Citations: PlumX Metrics

1995JA14      Phys.Lett. 359B, 268 (1995)

B.Jacquot, M.Colonna, Ph.Chomaz, A.Guarnera

Comment on the Presence of Chaos in Mean Field Dynamics Inside the Spinodal Region

doi: 10.1016/0370-2693(95)01100-5
Citations: PlumX Metrics

1994CH58      Phys.Rev.Lett. 73, 3512 (1994)

Ph.Chomaz, M.Colonna, A.Guarnera, J.Randrup

Brownian One-Body Dynamics in Nuclei

doi: 10.1103/PhysRevLett.73.3512
Citations: PlumX Metrics

1994CO18      Nucl.Phys. A580, 312 (1994)

M.Colonna, M.Di Toro, A.Guarnera

Memory Effects in Nuclear Fragmentation ( Question )

doi: 10.1016/0375-9474(94)90776-5
Citations: PlumX Metrics

1993CO08      Phys.Lett. 307B, 273 (1993)

M.Colonna, M.Di Toro, A.Guarnera, V.Latora, A.Smerzi

Searching for Instabilities in Nuclear Dynamics

NUCLEAR REACTIONS 40Ca(40Ca, X), E=70 MeV/nucleon; calculated mean density time evolution, variance; deduced instabilities onset features.

doi: 10.1016/0370-2693(93)90218-7
Citations: PlumX Metrics

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