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NSR database version of April 11, 2024.

Search: Author = R.Popescu

Found 15 matches.

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2002BR36      Phys.Rev. C66, 014608 (2002)

T.A.Bredeweg, R.Yanez, B.P.Davin, K.Kwiatkowski, R.T.de Souza, R.Lemmon, R.Popescu, R.J.Charity, L.G.Sobotka, D.Hofman, N.Carjan

Near-Scission Emission of Intermediate Mass Fragments in 12C + 232Th at E/A = 16 and 22 MeV

NUCLEAR REACTIONS 232Th(12C, X), E=16, 22 MeV/nucleon; measured intermediate mass fragment yields, energy, angular distribution in coincidence with fission fragments following incomplete fusion; deduced statistical emission mechanism, other reaction mechanism features. Comparison with ternary fission data.

NUCLEAR STRUCTURE 216,236U; calculated saddle-to-scission shapes vs angular momentum. Dynamical model.

doi: 10.1103/PhysRevC.66.014608
Citations: PlumX Metrics


2002TS02      Phys.Rev. C66, 044618 (2002)

M.B.Tsang, R.Shomin, O.Bjarki, C.K.Gelbke, G.J.Kunde, R.C.Lemmon, W.G.Lynch, D.Magestro, R.Popescu, A.M.Vandermolen, G.Verde, G.D.Westfall, H.F.Xi, W.A.Friedman, G.Imme, V.Maddalena, C.Nociforo, G.Raciti, G.Riccobene, F.P.Romano, A.Saija, C.Sfienti, S.Fritz, C.Gross, T.Odeh, C.Schwarz, A.Nadasen, D.Sisan, K.A.G.Rao

Generalized isoscaling of isotopic distributions

NUCLEAR REACTIONS 45Sc(36Ar, X), E=50, 100, 150 MeV; 93Nb(86Kr, X), E=35, 70, 100, 120 MeV; measured isotope yield ratios; deduced scaling parameters.

doi: 10.1103/PhysRevC.66.044618
Citations: PlumX Metrics


1999LE02      Phys.Lett. 446B, 197 (1999)

R.C.Lemmon, M.B.Tsang, W.Trautmann, R.J.Charity, J.F.Dempsey, J.Dinius, W.Dunnweber, S.Gaff, C.K.Gelbke, M.J.Huang, G.J.Kunde, W.G.Lynch, L.Manduci, R.Popescu, R.Ronningen, L.G.Sobotka, L.Weathers, D.White

Direct Observation of the Inversion Flow

NUCLEAR REACTIONS 154Sm(14N, X), (14N, αX), E=35, 100, 155 MeV/nucleon; measured (charged particle)γ-coin, γ-rays circular polarization; deduced sign of mean transverse momentum of non-equilibrium light charged particles. Mean field, nucleon-nucleon collision dynamics.

doi: 10.1016/S0370-2693(98)01545-7
Citations: PlumX Metrics


1999YA05      Phys.Rev.Lett. 82, 3585 (1999); Comment Phys.Rev.Lett. 85, 2645 (2000)

R.Yanez, T.A.Bredeweg, E.Cornell, B.Davin, K.Kwiatkowski, V.E.Viola, R.T.de Souza, R.Lemmon, R.Popescu

Experimental Evidence for Dynamical Decay of Finite Nuclear Matter

NUCLEAR REACTIONS 232Th(12C, F), E=22 MeV/nucleon; measured intermediate mass fragments energy, charge distributions, correlations with heavy fragments following ternary fission; deduced dynamical decay features.

doi: 10.1103/PhysRevLett.82.3585
Citations: PlumX Metrics


1998PO10      Phys.Rev. C58, 270 (1998)

R.Popescu, and the Miniball/Multics Collaboration

Sensitivity of Two-Fragment Correlation Functions to Initial-State Momentum Correlations

NUCLEAR REACTIONS 93Nb(86Kr, X), E=50 MeV/nucleon; measured two-fragment reduced-velocity correlation functions; deduced sensitivity to initial-state momentum correlations. Comparison with many-body Coulomb trajectory calculations.

doi: 10.1103/PhysRevC.58.270
Citations: PlumX Metrics


1998XI05      Phys.Rev. C58, R2636 (1998)

H.F.Xi, G.J.Kunde, O.Bjarki, C.K.Gelbke, R.C.Lemmon, W.G.Lynch, D.Magestro, R.Popescu, R.Shomin, M.B.Tsang, A.M.Vandermolen, G.D.Westfall, G.Imme, V.Maddalena, C.Nociforo, G.Raciti, G.Riccobene, F.P.Romano, A.Saija, C.Sfienti, S.Fritz, C.Gross, T.Odeh, C.Schwarz, A.Nadasen, D.Sisan, K.A.G.Rao

Dynamical Emission and Isotope Thermometry

NUCLEAR REACTIONS 93Nb(86Kr, X), E=35, 70, 100, 120 MeV/nucleon; measured light, intermediate fragments yields, correlation functions; deduced apparent temperature for emission. Several methods compared.

doi: 10.1103/PhysRevC.58.R2636
Citations: PlumX Metrics


1997AN03      Nucl.Phys. A614, 261 (1997)

J.C.Angelique, A.Buta, G.Bizard, D.Cussol, A.Peghaire, J.Peter, R.Popescu, G.Auger, R.Brou, C.Cabot, E.Crema, Y.El Masri, P.Eudes, Z.Y.He, A.Kerambrun, C.Lebrun, R.Regimbart, E.Rosato, F.Saint-Laurent, J.C.Steckmeyer, B.Tamain, E.Vient

Directed Collective Flow and Azimuthal Distributions in 36Ar + 27Al Collisions from 55 to 95 MeV/u

NUCLEAR REACTIONS 27Al(36Ar, X), E=55-95 MeV/nucleon; measured light charged products, transverse momentum distribution vs rapidity, azimuthal distributions of mid-rapidity praticles; deduced reaction plane determination, in-medium nucleon-nucleon interaction. 4π-array detection.

doi: 10.1016/S0375-9474(96)00436-8
Citations: PlumX Metrics


1997BU04      Z.Phys. A357, 9 (1997)

A.Buta, G.Bizard, J.Peter, J.C.Angelique, D.Cussol, A.Kerambrun, A.Peghaire, R.Popescu

Shadowing Effects and Transverse Momentum Dependence of Particle Emission in Intermediate Energy Heavy Ion Collisions

NUCLEAR REACTIONS 27Al(36Ar, X), E=55-95 MeV/nucleon; 58Ni(64Zn, X), E=35-79 MeV/nucleon; measured light particle correlations; deduced shadowing effects role in particle emission transverse momentum dependence.

doi: 10.1007/s002180050207
Citations: PlumX Metrics


1997KU02      Phys.Rev. C55, R990 (1997)

G.J.Kunde, S.Gaff, C.K.Gelbke, T.Glasmacher, M.J.Huang, R.Lemmon, W.G.Lynch, L.Manduci, L.Martin, R.Popescu, M.B.Tsang, J.Dempsey, R.J.Charity, L.G.Sobotka, D.K.Agnihotri, B.Djerroud, W.U.Schroder, W.Skulski, J.Toke, K.Wyrozebski, D.Ruess

Azimuthal 2α Correlations and Projectile-Residue Distributions Selected by Neutron and Charged-Particle Multiplicity Measurements

NUCLEAR REACTIONS 112Sn(112Sn, X), 124Sn(124Sn, X), E=40 MeV/nucleon; measured αα-azimuthal correlation function, projectilelike fragments charge distribution, neutron, charged particle multiplicities; deduced impact parameter selectivity related features.

doi: 10.1103/PhysRevC.55.R990
Citations: PlumX Metrics


1996HE05      Nucl.Phys. A598, 248 (1996)

Z.Y.He, J.C.Angelique, G.Auger, G.Bizard, R.Brou, A.Buta, C.Cabot, E.Crema, D.Cussol, G.X.Dai, Y.El Masri, Ph.Eudes, M.Gonin, K.Hagel, G.M.Jin, A.Kerambrun, C.Lebrun, Y.G.Ma, A.Peghaire, J.Peter, R.Popescu, R.Regimbart, E.Rosato, F.Saint-Laurent, W.Q.Shen, J.C.Steckmeyer, B.Tamain, E.Vient, R.Wada, F.S.Zhang

Disappearance of Flow and the In-Medium Nucleon-Nucleon Cross Section for 64Zn + 27Al Collisions at Intermediate Energies

NUCLEAR REACTIONS 27Al(64Zn, X), E=49-79 MeV/nucleon; measured light charged particle collective transverse momentum; deduced flow parameter, σ(NN).

doi: 10.1016/0375-9474(95)00486-6
Citations: PlumX Metrics


1996PO09      Phys.Rev. C54, 796 (1996)

R.Popescu, C.K.Gelbke, T.Glasmacher

Many-Body Coulomb Perturbation of Azimuthal α-α Correlations

doi: 10.1103/PhysRevC.54.796
Citations: PlumX Metrics


1995AN05      Nucl.Phys. A583, 543c (1995)

J.C.Angelique, R.Popescu, G.Auger, G.Bizard, R.Brou, A.Buta, C.Cabot, E.Crema, D.Cussol, Y.El Masri, Ph.Eudes, M.Gonin, K.Hagel, Z.Y.He, A.Kerambrun, C.Lebrun, J.P.Patry, A.Peghaire, J.Peter, R.Regimbart, E.Rosato, F.Saint-Laurent, J.C.Steckmeyer, B.Tamain, E.Vient, R.Wada

Azimuthal Dependence of the Directed Flow in Collisions up to 95 MeV/u: From in-plane to out-of-plane enhancement

NUCLEAR REACTIONS 27Al(40Ar, X), E ≤ 95 MeV/nucleon; 58Ni(64Zn, X), E=35-79 MeV/nucleon; measured fragment mid-rapidty azimuthal distributions; deduced in-plane to out-of-plane enhancement features.

doi: 10.1016/0375-9474(94)00717-2
Citations: PlumX Metrics


1995BU06      Nucl.Phys. A584, 397 (1995)

A.Buta, J.C.Angelique, G.Auger, G.Bizard, R.Brou, C.Cabot, Y.Cassagnou, E.Crema, D.Cussol, Y.El Masri, Ph.Eudes, M.Gonin, K.Hagel, Z.Y.He, A.Kerambrun, C.Lebrun, R.Legrain, J.P.Patry, A.Peghaire, J.Peter, R.Popescu, R.Regimbart, E.Rosato, F.Saint-Laurent, J.C.Steckmeyer, B.Tamain, E.Vient, R.Wada

Azimuthal Correlation Functions and the Energy of Vanishing Flow in Nucleus-Nucleus Collisions

NUCLEAR REACTIONS 27Al(36Ar, X), E=55-95 MeV/nucleon; 58Ni, 48Ti(64Zn, X), E=35-79 MeV/nucleon; analyzed (particle)(particle) azimuthal correlation data; deduced systems balance energy.

doi: 10.1016/0375-9474(94)00520-W
Citations: PlumX Metrics


1994HE40      Chin.J.Nucl.Phys. 16, No 3, 207 (1994)

Z.-Y.He, A.Buta, J.C.Angelique, G.Bizard, R.Brou, D.Cussol, A.Kerambrun, J.P.Patry, J.Peter, R.Popescu, R.Regimbart, J.C.Steckmeyer, B.Tamain, E.Vient, G.Auger, C.Cabot, E.Crema, A.Peghaire, F.Saint-Laurent, M.Gonin, K.Hagel, R.Wada, P.Eudes, C.Lebrun, E.Rosato, Y.El Masri

Reaction Plane Determination for 64Zn + 27Al Collisions at Intermediate Energy

NUCLEAR REACTIONS 27Al(64Zn, X), E=49-79 MeV/nucleon; measured collective flow; deduced best method of analysis.


1994PO14      Phys.Lett. 331B, 285 (1994)

R.Popescu, J.C.Angelique, G.Auger, G.Bizard, R.Brou, A.Buta, C.Cabot, E.Crema, D.Cussol, Y.El Masri, P.Eudes, M.Gonin, K.Hagel, Z.Y.He, A.Kerambrun, C.Lebrun, J.P.Patry, A.Peghaire, J.Peter, R.Regimbart, E.Rosato, F.Saint-Laurent, J.C.Steckmeyer, B.Tamain, E.Vient, R.Wada

From In-Plane to Out-of-Plane Enhancement of the Directed Flow in 64Zn on 58Ni Collisions between 35 and 79 MeV/u

NUCLEAR REACTIONS 64Zn(58Ni, X), E=35-79 MeV/nucleon; measured σ(fragment φ); deduced mid-rapidity for fragment Z=1, 2, 3, in-plane, out-of-plane enhancement evolution energy dependence.

doi: 10.1016/0370-2693(94)91053-7
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