Preequilibrium neutron emission in heavy ion reaction

Mean field effect and multiple emission

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

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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
Volume94
Issue number3
DOIs
Publication statusPublished - 08-09-2016

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neutron emission
density distribution
heavy ions
projectiles
neutron distribution
formalism
collision rates
composite materials
kinematics
neutrons
energy
scattering

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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abstract = "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.",
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Preequilibrium neutron emission in heavy ion reaction : Mean field effect and multiple emission. / Paul, Sabyasachi; Nandy, Maitreyee; Mohanty, A. K.; Gambhir, Y. K.

In: Physical Review C, Vol. 94, No. 3, 034607, 08.09.2016.

Research output: Contribution to journalArticle

TY - JOUR

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T2 - Mean field effect and multiple emission

AU - Paul, Sabyasachi

AU - Nandy, Maitreyee

AU - Mohanty, A. K.

AU - Gambhir, Y. K.

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