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Exploring the Effects of Entrance Channel and Fissility on Pre-scission Neutron Multiplicity and Nuclear Dissipation

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Title Exploring the Effects of Entrance Channel and Fissility on Pre-scission Neutron Multiplicity and Nuclear Dissipation
 
Creator Kumar, Rakesh
Vikas
Dalal, Ranjeet
Singh, Hardev
 
Subject Neutron multiplicity
Entrance channel effect
Dissipation strength
Fissility
 
Description 441-450
The pre-scission neutron multiplicity and dissipation strength are studied for a systematic understanding of the role of
entrance-channel in fusion-fission dynamics using the statistical model formalism. The measured pre-scission neutron
multiplicity is found to be higher for symmetric reactions as compared to the asymmetric ones for a given compound
nucleus, with the exception of a few reaction channels, where the presence of quasi-fission affects the neutron yield. The
calculated pre-scission neutron multiplicities are compared with the experimentally measured values and it is found that for
the majority of reactions, the calculated values of pre-scission neutron multiplicities are under-estimated. The underestimation
of pre-scission neutron multiplicity indicates that dissipation is required in the fission channel to reproduce the
experimental data. The systematic behaviour of pre-scission neutron multiplicity and dissipation strength as a function of
fissility of the compound nucleus is also explored for the select energy ranges. It is found that the pre-scission neutron
multiplicity shows nearly increasing behaviour as a function of fissility of the compound nucleus, whereas, dissipation does
not seem to follow such an increasing trend for the studied reactions.
 
Date 2024-06-07T09:56:04Z
2024-06-07T09:56:04Z
2024-06
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/64057
https://doi.org/10.56042/ijpap.v62i6.8475
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJPAP Vol.62(06) [June 2024]