Sideward flow of K+ mesons in Ru plus Ru and Ni plus Ni reactions near threshold

Citation
P. Crochet et al., Sideward flow of K+ mesons in Ru plus Ru and Ni plus Ni reactions near threshold, PHYS LETT B, 486(1-2), 2000, pp. 6-12
Citations number
41
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
0370-2693 → ACNP
Volume
486
Issue
1-2
Year of publication
2000
Pages
6 - 12
Database
ISI
SICI code
0370-2693(20000727)486:1-2<6:SFOKMI>2.0.ZU;2-2
Abstract
Experimental data on K+ meson and proton sideward now measured with the FOP I detector at SIS/GSI in the reactions Ru + Ru at 1.69 A GeV and Ni + Ni at 1.93 A GeV are presented. The K+ sideward flow is found to be anti-correla ted (correlated) with the one of protons at low (high) transverse momenta. When compared to the predictions of a transport model, the data favour the existence of an in-medium repulsive K+-nucleon potential. (C) 2000 Elsevier Science B.V. All rights reserved.