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Collective enhancement in the exciton model

Authors :
M. R. Mumpower
D. Neudecker
H. Sasaki
T. Kawano
A. E. Lovell
M. W. Herman
I. Stetcu
M. Dupuis
Direction des Applications Militaires (DAM)
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
Université Paris-Saclay
Source :
Phys.Rev.C, Phys.Rev.C, 2023, 107 (3), pp.034606. ⟨10.1103/PhysRevC.107.034606⟩
Publication Year :
2022
Publisher :
arXiv, 2022.

Abstract

The pre-equilibrium reaction mechanism is considered in the context of the exciton model. A modification to the one-particle one-hole state density is studied which can be interpreted as a collective enhancement. The magnitude of the collective enhancement is set by simulating the Lawrence Livermore National Laboratory (LLNL) pulsed-spheres neutron-leakage spectra. The impact of the collective enhancement is explored in the context of the highly deformed actinide, 239-Pu. A consequence of this enhancement is the removal of fictitious levels in the Distorted-Wave Born Approximation often used in modern nuclear reaction codes.<br />Comment: 7 pages, 7 figures. Comments welcome!

Details

Database :
OpenAIRE
Journal :
Phys.Rev.C, Phys.Rev.C, 2023, 107 (3), pp.034606. ⟨10.1103/PhysRevC.107.034606⟩
Accession number :
edsair.doi.dedup.....f9cafbbd632653cde066985879091dec
Full Text :
https://doi.org/10.48550/arxiv.2210.12105