Analysis of the inclusive spectra of pi(-) mesons from nucleus-nucleus collisions in terms of light-front variables

Citation
Lt. Akhobedze et al., Analysis of the inclusive spectra of pi(-) mesons from nucleus-nucleus collisions in terms of light-front variables, PHYS ATOM N, 63(9), 2000, pp. 1584-1588
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS OF ATOMIC NUCLEI
ISSN journal
1063-7788 → ACNP
Volume
63
Issue
9
Year of publication
2000
Pages
1584 - 1588
Database
ISI
SICI code
1063-7788(200009)63:9<1584:AOTISO>2.0.ZU;2-S
Abstract
The spectra of pi(-) mesons originating from pC, HeC, CC, and CTa collision s are analyzed in terms of the light-front variables xi and zeta. The angul ar and momentum distributions of pi(-) mesons are studied in various region s of the variables xi(+/-) and zeta(+/-). These distributions in the region s xi(+) < <(xi)over tilde>(+) and xi(+) > <(xi)over tilde>(+) do not admit a unified description. In the region xi(+) < <(xi)over tilde>(+), the distr ibutions in question are consistent with predictions of the statistical mod el. The temperature parameter T decreases almost linearly with increasing p roduct of the mass numbers of colliding nuclei (that is, with increasing nu mber of interacting nucleons). The distributions in the region xi(+) > <(xi )over tilde>(+) are fitted to semiempirical forms. (C) 2000 MAIK "Nauka/Int erperiodica".