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Spectator Matter in Collisions of Relativistic Deformed Nuclei

Kozyrev, N. ; Svetlichnyi, A. ; Nepeivoda, R. LU orcid and Pshenichnov, I. (2023) In Physics of Particles and Nuclei 54(4). p.605-612
Abstract

Abstract: The Abrasion–Ablation Monte Carlo for Colliders (AAMCC) model is used to study the characteristics of spectator matter in central collisions of relativistic 238U nuclei, which are sensitive to the mutual orientation and the degree of deformation of the colliding nuclei. It is shown that the multiplicity of spectator neutrons and their forward-backward asymmetry substantially depend on the initial mutual orientation of 238U nuclei, which makes it possible to separate tip-body events with a high forward-backward asymmetry and a maximum multiplicity of spectator neutrons, as well as side-side events with a similar multiplicity, but with a minimal asymmetry. It is found that an increase in the quadrupole... (More)

Abstract: The Abrasion–Ablation Monte Carlo for Colliders (AAMCC) model is used to study the characteristics of spectator matter in central collisions of relativistic 238U nuclei, which are sensitive to the mutual orientation and the degree of deformation of the colliding nuclei. It is shown that the multiplicity of spectator neutrons and their forward-backward asymmetry substantially depend on the initial mutual orientation of 238U nuclei, which makes it possible to separate tip-body events with a high forward-backward asymmetry and a maximum multiplicity of spectator neutrons, as well as side-side events with a similar multiplicity, but with a minimal asymmetry. It is found that an increase in the quadrupole deformation parameter (Formula presented.) of 238U nuclei leads to a proportional increase in the multiplicity of spectator neutrons in tip-body events. Thus, the detection of spectator neutrons in collisions of relativistic deformed nuclei in an experiment can be used to study a degree of their deformation and to select collisions of a certain orientation.

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author
; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Physics of Particles and Nuclei
volume
54
issue
4
pages
8 pages
publisher
Pleiades Publishing
external identifiers
  • scopus:85166526331
ISSN
1063-7796
DOI
10.1134/S1063779623040214
language
English
LU publication?
no
additional info
Publisher Copyright: © 2023, Pleiades Publishing, Ltd.
id
6131f3de-74fe-4fe4-ad89-2562bbf77af2
date added to LUP
2024-09-09 18:06:48
date last changed
2025-04-04 14:40:26
@article{6131f3de-74fe-4fe4-ad89-2562bbf77af2,
  abstract     = {{<p>Abstract: The Abrasion–Ablation Monte Carlo for Colliders (AAMCC) model is used to study the characteristics of spectator matter in central collisions of relativistic <sup>238</sup>U nuclei, which are sensitive to the mutual orientation and the degree of deformation of the colliding nuclei. It is shown that the multiplicity of spectator neutrons and their forward-backward asymmetry substantially depend on the initial mutual orientation of <sup>238</sup>U nuclei, which makes it possible to separate tip-body events with a high forward-backward asymmetry and a maximum multiplicity of spectator neutrons, as well as side-side events with a similar multiplicity, but with a minimal asymmetry. It is found that an increase in the quadrupole deformation parameter (Formula presented.) of <sup>238</sup>U nuclei leads to a proportional increase in the multiplicity of spectator neutrons in tip-body events. Thus, the detection of spectator neutrons in collisions of relativistic deformed nuclei in an experiment can be used to study a degree of their deformation and to select collisions of a certain orientation.</p>}},
  author       = {{Kozyrev, N. and Svetlichnyi, A. and Nepeivoda, R. and Pshenichnov, I.}},
  issn         = {{1063-7796}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{605--612}},
  publisher    = {{Pleiades Publishing}},
  series       = {{Physics of Particles and Nuclei}},
  title        = {{Spectator Matter in Collisions of Relativistic Deformed Nuclei}},
  url          = {{http://dx.doi.org/10.1134/S1063779623040214}},
  doi          = {{10.1134/S1063779623040214}},
  volume       = {{54}},
  year         = {{2023}},
}