One-dimensional and three-dimensional dynamical fission calculations based on Langevin equations are performed for the compound nuclei Pb-194, Pb-200, Pb-206, Hg-182, and Hg-204 to investigate the influence of the compound nucleus isospin on the prescission particle multiplicities and oil the fission fragment mass-energy distribution It is found that the prescission neutron, proton, and alpha particle multiplicities have approximately the same sensitivity to the dissipation strength for a given nucleus This is at variance with Conclusions of recent papers The sensitivity of the calculated prescission particle Multiplicities to the dissipation strength becomes higher with decreasing isospin of fissioning compound nucleus, and the increase of prescission particle multiplicities could reach 200%, when the reduction coefficient of one-body viscosity k(s) increases from 0 1 to 1, for the most neutron deficient nuclei considered The variances of fission fragment mass and kinetic energy distributions are less sensitive to the change of dissipation strength than the prescission light particle multiplicities A comparison to experimental data concerning Pb-200 nucleus is also presented.

Examination of isospin effects in multi-dimensional Langevin fission dynamics / Nadotchy, P. N.; Vardaci, Emanuele; Di Nitto, A.; Brondi, Augusto; LA RANA, Giovanni; Moro, RENATA EMILIA MARIA; Cinausero, M.; Prete, G.; Gelli, N.; Lucarelli, F.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 685:(2010), pp. 258-262. [10.1016/j.physletb.2010.01.069]

Examination of isospin effects in multi-dimensional Langevin fission dynamics

VARDACI, EMANUELE;A. Di Nitto;BRONDI, AUGUSTO;LA RANA, GIOVANNI;MORO, RENATA EMILIA MARIA;
2010

Abstract

One-dimensional and three-dimensional dynamical fission calculations based on Langevin equations are performed for the compound nuclei Pb-194, Pb-200, Pb-206, Hg-182, and Hg-204 to investigate the influence of the compound nucleus isospin on the prescission particle multiplicities and oil the fission fragment mass-energy distribution It is found that the prescission neutron, proton, and alpha particle multiplicities have approximately the same sensitivity to the dissipation strength for a given nucleus This is at variance with Conclusions of recent papers The sensitivity of the calculated prescission particle Multiplicities to the dissipation strength becomes higher with decreasing isospin of fissioning compound nucleus, and the increase of prescission particle multiplicities could reach 200%, when the reduction coefficient of one-body viscosity k(s) increases from 0 1 to 1, for the most neutron deficient nuclei considered The variances of fission fragment mass and kinetic energy distributions are less sensitive to the change of dissipation strength than the prescission light particle multiplicities A comparison to experimental data concerning Pb-200 nucleus is also presented.
2010
Examination of isospin effects in multi-dimensional Langevin fission dynamics / Nadotchy, P. N.; Vardaci, Emanuele; Di Nitto, A.; Brondi, Augusto; LA RANA, Giovanni; Moro, RENATA EMILIA MARIA; Cinausero, M.; Prete, G.; Gelli, N.; Lucarelli, F.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 685:(2010), pp. 258-262. [10.1016/j.physletb.2010.01.069]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/373298
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