New results from NA52 on particle production in Pb-Pb collisions at 158 A GeV/c

Citation
R. Arsenescu et al., New results from NA52 on particle production in Pb-Pb collisions at 158 A GeV/c, J PHYS G-NU, 25(2), 1999, pp. 225-233
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
ISSN journal
0954-3899 → ACNP
Volume
25
Issue
2
Year of publication
1999
Pages
225 - 233
Database
ISI
SICI code
0954-3899(199902)25:2<225:NRFNOP>2.0.ZU;2-T
Abstract
We are presenting new results on K+/- and pi(+/-) production in minimum bia s lead-lead collisions at 158 A GeV/c. The measurements were performed at z ero degree production angle and for a wide rapidity range. The analysis met hod used the full particle identification capabilities (time of flight, Cer enkov counters and hadronic calorimeter) of the spectrometer. We show K/pi and pi(-)/pi(+) ratios as a function of rapidity, as well as invariant part icle production cross sections. As a particularity we observe near projecti le rapidity an enhancement in the number of pi(-) with respect to pi(+).