Abstract
Positive pion and kaon production from Au + Au reactions have been measured as a function of beam energy over the range 2.0-10.7 AGeV. Both the kaon and the pion production cross-sections at mid-rapidity are observed to increase steadily with beam kinetic energy. The ratio of K+ to π+ mid-rapidity yields increases from 0.0271 ± 0.0015 ± 0.0014 at 2.0 AGeV to 0.202 ± 0.005 ± 0.010 at 10.7 AGeV and is larger than the K+/ π+ ratio from p + p reactions over the same beam energy region. There is no indication of a strong onset of any new production mechanism in heavy-ion reactions in this energy range beyond rescattering of hadrons. (C) 2000 Published by Elsevier Science B.V.
Original language | English (US) |
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Pages (from-to) | 1-8 |
Number of pages | 8 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 476 |
Issue number | 1-2 |
DOIs | |
State | Published - Mar 9 2000 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics