Nuclear stopping for heavy-ion induced reactions in the Fermi Energy range : from 1-Body to 2-Body dissipation

Abstract : We address the stopping in heavy-ion induced reactions around the Fermi energy using central collisions recorded with \emph{INDRA} $4\pi$ array. The stopping is minimal around the Fermi energy and corresponds to the disappearance of the Mean-Field effects and the appearance of nucleon-nucleon elastic collisions. This phenomenon is attributed to a change in the dissipation regime going from 1-body (Mean-Field) dissipation at low incident energy to 2- body (nucleonic collisions) above the Fermi energy. A connection to the in-medium transport properties of nuclear matter is proposed and comprehensive values of the nucleon mean free path $\lambda_{NN}$ and the nucleon-nucleon cross section are extracted.
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http://hal.in2p3.fr/in2p3-00858339
Contributor : Sandrine Guesnon <>
Submitted on : Thursday, September 5, 2013 - 11:34:03 AM
Last modification on : Tuesday, February 19, 2019 - 10:08:05 AM

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O. Lopez, G. Lehaut, D. Durand, M. Aouadi. Nuclear stopping for heavy-ion induced reactions in the Fermi Energy range : from 1-Body to 2-Body dissipation. INPC 2013 - International Nuclear Physics Conference, 2013, Firenze, Italy. pp.03066, ⟨10.1051/epjconf/20146603056⟩. ⟨in2p3-00858339⟩

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