Preequilibrium neutron emission in heavy ion reaction: Mean field effect and multiple emission

Sabyasachi Paul, Maitreyee Nandy, A. K. Mohanty, Y. K. Gambhir

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3 Citations (Scopus)


Effects of nuclear mean field and of multiple preequilibrium (PEQ) emission on double differential neutron multiplicity distribution from heavy ion reactions (C12+Ho165 and Ne20+Ho165) at 10-30 MeV/u have been investigated in the framework of the semiclassical formalism for heavy ion reaction (henceforth termed "HION") developed earlier. HION follows the equilibration of a target+projectile composite system through the kinematics of two-body scattering. In the present work nuclear density distribution in the composite system is estimated in the relativistic mean field (RMF) approach. The nucleon-nucleon collision rates and subsequently the nucleon emission probability are calculated from this density distribution. A second approach based on a semiphenomenological formalism is also used for nuclear density distribution. Energy-angle distribution of neutron multiplicities calculated with this modified HION model coupled with multiple PEQ emission could reproduce the measured data of earlier workers in the projectile energy range of 10-30 MeV/u.

Original languageEnglish
Article number034607
JournalPhysical Review C
Issue number3
Publication statusPublished - 08-09-2016

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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