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Showing papers by "B. Tamain published in 1990"

Journal Article•DOI•
Disappearance of flow as a function of impact parameter and energy in nucleus-nucleus collisions

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J.P. Sullivan1, Jean Péter1, D. Cussol1, G. Bizard1, R. Brou1, M. Louvel1, J.P. Patry1, R. Regimbart1, J.C. Steckmeyer1, B. Tamain1, Edilson Crema, H. Doubre, K. Hagel, G.M. Jin, A. Péghaire, F. Saint-Laurent, Y. Cassagnou, R. Legrain, C. Lebrun, E. Rosato, R. MacGrath2, S.C. Jeong3, S.M. Lee3, Y. Nagashima3, T. Nakagawa3, M. Ogihara3, J. Kasagi4, T. Motobayashi5, T. Motobayashi1 •
Centre national de la recherche scientifique1, Stony Brook University2, University of Tsukuba3, Tokyo Institute of Technology4, Rikkyo University5
11 Oct 1990-Physics Letters B
TL;DR: The dependence of collective nuclear flow on impact parameter and beam energy from 25 to 85 MeV/u has been measured for Ar+Al with the 4 π array Mur+Tonneau.

52 citations

Journal Article•DOI•
Global variables and impact parameter determination in nucleus-nucleus collisions below 100 MeV/u

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Jean Péter1, D. Cussol1, G. Bizard1, R. Brou1, M. Louvel1, J.P. Patry1, R. Regimbart1, J.C. Steckmeyer1, J.P. Sullivan1, B. Tamain1, Edilson Crema, H. Doubre, K. Hagel, G.M. Jin, A. Péghaire, F. Saint-Laurent, Y. Cassagnou, R. Legrain, C. Lebrun, Elio Rosato, R. MacGrath2, S.G. Jeong3, S.M. Lee3, Yasuo Nagashima3, T. Nakagawa3, M. Ogihara3, J. Kasagi4, T. Motobayashi4, T. Motobayashi1 •
Centre national de la recherche scientifique1, Stony Brook University2, University of Tsukuba3, Tokyo Institute of Technology4
10 Dec 1990-Nuclear Physics
TL;DR: In this article, several global variables are tested for determining the impact parameter in 4π measurements of charged products, and simulated reactions are used to study the correlation between the real impact parameter value and the experimentally determined one.

33 citations

Journal Article•DOI•
Strong impact parameter dependence of pre-equilibrium particle emission in nucleus-nucleus reactions at intermediate energies

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Jean Péter1, J.P. Sullivan, D. Cussol1, G. Bizard1, R. Brou1, M. Louvel1, J.P. Patry1, R. Regimbart1, J.C. Steckmeyer1, B. Tamain1, Edilson Crema, H. Doubre, K. Hagel, G.M. Jin, A. Péghaire, F. Saint-Laurent, Y. Cassagnou, R. Legrain, C. Lebrun, Elio Rosato, R. MacGrath2, S.C. Jeong3, S.M. Lee3, Yasuo Nagashima3, T. Nakagawa3, M. Ogihara3, J. Kasagi4, T. Motobayashi1, T. Motobayashi5 •
Centre national de la recherche scientifique1, Stony Brook University2, University of Tsukuba3, Tokyo Institute of Technology4, Rikkyo University5
15 Mar 1990-Physics Letters B
TL;DR: In this article, a new global variable, the average parallel velocity, has been used to sort the events as a function of the impact parameter value, and a pre-equilibrium component is present for particles with Z = 1 and 2.

27 citations

Journal Article•DOI•
Exclusive study of nucleus-nucleus reactions at intermediate energies: Impact parameter dependence of pre-equilibrium emission, Collective flow and hot nuclei formation

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Jean Péter, J.P. Sullivan, D. Cussol, G. Bizard, R. Brou, M. Louvel, J.P. Patry, R. Regimbart, J.C. Steckmeyer, B. Tamain, Edilson Crema, H. Doubre, K. Hagel, G.M. Jin1, A. Péghaire, F. Saint-Laurent, Y. Cassagnou, R. Legrain, C. Lebrun, Elio Rosato, R. MacGrath2, S.C. Jeong, S.M. Lee1, Y. Nagashima3, T. Nakagawa3, M. Ogihara3, J. Kasagi3, J. Kasagi4, Tohru Motobayashi4 •
University of Tsukuba1, Stony Brook University2, Tokyo Institute of Technology3, Rikkyo University4
03 Dec 1990-Nuclear Physics
TL;DR: In this paper, the average parallel velocity was used to sort the events as a function of the impact parameter value, and the multiplicity of particles emitted from the interaction region increases strongly when the impact parameters value decreases, and reaches 7 in head-on reactions.

6 citations