Evidence for a soft nuclear equation-of-state from Kaon production in heavy-ion collisions

Authors
Sturm, C Bottcher, I Debowski, M Forster, A Grosse, E Koczon, P Kohlmeyer, B Laue, F Mang, M Naumann, L Oeschler, H Puhlhofer, F Schwab, E Senger, P Shin, Y Speer, J Strobele, H Surowka, G Uhlig, F Wagner, A Walus, W
Citation
C. Sturm et al., Evidence for a soft nuclear equation-of-state from Kaon production in heavy-ion collisions, PHYS REV L, 86(1), 2001, pp. 39-42
Citations number
23
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
1
Year of publication
2001
Pages
39 - 42
Database
ISI
SICI code
0031-9007(20010101)86:1<39:EFASNE>2.0.ZU;2-8
Abstract
The production of pions and kaons has been measured in Au-197 + Au-197 coll isions at beam energies from 0.6 to 1.5A GeV with the kaon spectrometer at SIS/GSI. The K+ meson multiplicity per nucleon is enhanced in Au + Au colli sions by factors up to 6 relative to C + C reactions, whereas the correspon ding pion ratio is reduced. The ratio of the K+ meson excitation functions for Au + Au and C + C collisions increases with decreasing beam energy. Thi s behavior is expected for a soft nuclear equation-of-state.