Two-proton correlations from 158 A GeV Pb+Pb central collisions

Citation
H. Appelshauser et al., Two-proton correlations from 158 A GeV Pb+Pb central collisions, PHYS LETT B, 467(1-2), 1999, pp. 21-28
Citations number
44
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
0370-2693 → ACNP
Volume
467
Issue
1-2
Year of publication
1999
Pages
21 - 28
Database
ISI
SICI code
0370-2693(19991111)467:1-2<21:TCF1AG>2.0.ZU;2-W
Abstract
The two-proton correlation function at midrapidity from Pb + Pb central col lisions at 158 A GeV has been measured by the NA49 experiment. The results are compared to model predictions from static thermal Gaussian proton sourc e distributions and transport models rqmd and venus. An effective proton so urce size is determined by minimizing chi(2)/ndf between the correlation fu nctions of the data and those calculated for the Gaussian sources, yielding sigma(eff) = 3.85 +/- 0.15(stat.)(-0.25)(+0.60)(syst.) fm. Both the rqmd a nd the venus model are consistent with the data within the error in the cor relation peak region. (C) 1999 Published by Elsevier Science B.V. All right s reserved.