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Analysis of charged particle emission sources and coalescence in E/A=61 (MeVAr)-Ar-36+Al-27, Sn-112 and Sn-124 collisions

Avdeichikov, Vladimir LU ; Ghetti, Roberta LU ; Helgesson, J; Jakobsson, Bo LU ; Golubev, Pavel LU ; Colonna, N and Wilschut, HW (2004) In Nuclear Physics, Section A 736(1-2). p.22-38
Abstract
Single-particle kinetic energy spectra and two-particle small angle correlations of protons (p), deuterons (d) and tritons (t) have been measured simultaneously in 61 A MeV Ar-36 + Al-27, Sn-112 and Sn-124 collisions. Characteristics of the emission sources have been derived from a "source identification plot" (beta(source)-E-CM plot), constructed from the single-particle invariant spectra, and compared to the complementary results from two-particle correlation functions. Furthermore, the source identification plot has been used to determine the conditions when the coalescence mechanism can be applied for composite particles. In our data, this is the case only for the Ar + Al reaction, where p, d and t are found to originate from a common... (More)
Single-particle kinetic energy spectra and two-particle small angle correlations of protons (p), deuterons (d) and tritons (t) have been measured simultaneously in 61 A MeV Ar-36 + Al-27, Sn-112 and Sn-124 collisions. Characteristics of the emission sources have been derived from a "source identification plot" (beta(source)-E-CM plot), constructed from the single-particle invariant spectra, and compared to the complementary results from two-particle correlation functions. Furthermore, the source identification plot has been used to determine the conditions when the coalescence mechanism can be applied for composite particles. In our data, this is the case only for the Ar + Al reaction, where p, d and t are found to originate from a common source of emission (from the overlap region between target and projectile). In this case, the coalescence model parameter, (p) over tilde (0)-the radius of the complex particle emission source in momentum space, has been analyzed. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
coalescence model, E=61 MeV/nucleon, (Ar-36, pX), 124) Sn(Ar-36, (112, nuclear reactions(27)Al, dX), measured particle spectra, tX), deduced particle source features, correlations
in
Nuclear Physics, Section A
volume
736
issue
1-2
pages
22 - 38
publisher
Elsevier
external identifiers
  • wos:000221140900002
  • scopus:1842711223
ISSN
0375-9474
DOI
10.1016/j.nuclphysa.2004.02.023
language
English
LU publication?
yes
id
47d6a979-6e81-4c00-b635-073a078dd4a4 (old id 279685)
date added to LUP
2007-08-02 10:21:00
date last changed
2017-01-01 07:15:54
@article{47d6a979-6e81-4c00-b635-073a078dd4a4,
  abstract     = {Single-particle kinetic energy spectra and two-particle small angle correlations of protons (p), deuterons (d) and tritons (t) have been measured simultaneously in 61 A MeV Ar-36 + Al-27, Sn-112 and Sn-124 collisions. Characteristics of the emission sources have been derived from a "source identification plot" (beta(source)-E-CM plot), constructed from the single-particle invariant spectra, and compared to the complementary results from two-particle correlation functions. Furthermore, the source identification plot has been used to determine the conditions when the coalescence mechanism can be applied for composite particles. In our data, this is the case only for the Ar + Al reaction, where p, d and t are found to originate from a common source of emission (from the overlap region between target and projectile). In this case, the coalescence model parameter, (p) over tilde (0)-the radius of the complex particle emission source in momentum space, has been analyzed.},
  author       = {Avdeichikov, Vladimir and Ghetti, Roberta and Helgesson, J and Jakobsson, Bo and Golubev, Pavel and Colonna, N and Wilschut, HW},
  issn         = {0375-9474},
  keyword      = {coalescence model,E=61 MeV/nucleon,(Ar-36,pX),124) Sn(Ar-36,(112,nuclear reactions(27)Al,dX),measured particle spectra,tX),deduced particle source features,correlations},
  language     = {eng},
  number       = {1-2},
  pages        = {22--38},
  publisher    = {Elsevier},
  series       = {Nuclear Physics, Section A},
  title        = {Analysis of charged particle emission sources and coalescence in E/A=61 (MeVAr)-Ar-36+Al-27, Sn-112 and Sn-124 collisions},
  url          = {http://dx.doi.org/10.1016/j.nuclphysa.2004.02.023},
  volume       = {736},
  year         = {2004},
}