Application of the coalescence model to deuterons in central58Ni + 58Ni collisions between 1A and 2A GeV

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In the context of the coalescence model and the density-matrix formalism, the radii of the excited volume at chemical freeze-out for central 58Ni + 58Ni collisions are extracted by using the published transverse momentum spectra of deuterons at incident beam energies from 1A to 2A GeV. The freeze-out radii from the coalescence model are in fair agreement with those from the pion Hanbury-Brown-Twiss analysis for the same collsion system in the same beam energy range. Furthermore, the radii are much larger than the sizes of the projectile and the target nuclei, supporting a significant expansion of the participant fireball before freeze-out. The freeze-out baryon densities are estimated to be about one third of the normal nuclear-matter density.

Original languageEnglish
Pages (from-to)79-83
Number of pages5
JournalJournal of the Korean Physical Society
Volume34
Issue number1
Publication statusPublished - 1999 Dec 1

Fingerprint

coalescing
deuterons
collisions
radii
fireballs
transverse momentum
projectiles
baryons
pions
formalism
nuclei
expansion
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

@article{ce3c29fe0d6d435c9dd1486538c320bb,
title = "Application of the coalescence model to deuterons in central58Ni + 58Ni collisions between 1A and 2A GeV",
abstract = "In the context of the coalescence model and the density-matrix formalism, the radii of the excited volume at chemical freeze-out for central 58Ni + 58Ni collisions are extracted by using the published transverse momentum spectra of deuterons at incident beam energies from 1A to 2A GeV. The freeze-out radii from the coalescence model are in fair agreement with those from the pion Hanbury-Brown-Twiss analysis for the same collsion system in the same beam energy range. Furthermore, the radii are much larger than the sizes of the projectile and the target nuclei, supporting a significant expansion of the participant fireball before freeze-out. The freeze-out baryon densities are estimated to be about one third of the normal nuclear-matter density.",
author = "Byungsik Hong",
year = "1999",
month = "12",
day = "1",
language = "English",
volume = "34",
pages = "79--83",
journal = "Journal of the Korean Physical Society",
issn = "0374-4884",
publisher = "Korean Physical Society",
number = "1",

}

TY - JOUR

T1 - Application of the coalescence model to deuterons in central58Ni + 58Ni collisions between 1A and 2A GeV

AU - Hong, Byungsik

PY - 1999/12/1

Y1 - 1999/12/1

N2 - In the context of the coalescence model and the density-matrix formalism, the radii of the excited volume at chemical freeze-out for central 58Ni + 58Ni collisions are extracted by using the published transverse momentum spectra of deuterons at incident beam energies from 1A to 2A GeV. The freeze-out radii from the coalescence model are in fair agreement with those from the pion Hanbury-Brown-Twiss analysis for the same collsion system in the same beam energy range. Furthermore, the radii are much larger than the sizes of the projectile and the target nuclei, supporting a significant expansion of the participant fireball before freeze-out. The freeze-out baryon densities are estimated to be about one third of the normal nuclear-matter density.

AB - In the context of the coalescence model and the density-matrix formalism, the radii of the excited volume at chemical freeze-out for central 58Ni + 58Ni collisions are extracted by using the published transverse momentum spectra of deuterons at incident beam energies from 1A to 2A GeV. The freeze-out radii from the coalescence model are in fair agreement with those from the pion Hanbury-Brown-Twiss analysis for the same collsion system in the same beam energy range. Furthermore, the radii are much larger than the sizes of the projectile and the target nuclei, supporting a significant expansion of the participant fireball before freeze-out. The freeze-out baryon densities are estimated to be about one third of the normal nuclear-matter density.

UR - http://www.scopus.com/inward/record.url?scp=0033484736&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033484736&partnerID=8YFLogxK

M3 - Article

VL - 34

SP - 79

EP - 83

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

SN - 0374-4884

IS - 1

ER -