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LowpT phenomena in A+A and p+A collisions at mid-rapidity
Authors:H. Bøggild  J. Boissevain  M. Cherney  J. Dodd  S. Esumi  C. W. Fabjan  D. E. Fields  A. Franz  E. B. Holzer  T. Humanic  B. V. Jacak  R. Jayanti  H. Kalechofsky  R. Kvatadze  Y. Y. Lee  M. Leltchouk  B. Lorstad  N. Maeda  A. Medvedev  A. Miyabayashi  M. Murray  S. Nishimura  E. Noteboom  S. U. Pandey  F. Piuz  V. Polychronakos  M. Potekhin  G. Poulard  A. Sakaguchi  M. Sarabura  J. Schmidt-Sorenson  J. Simon-Gillo  W. Sondheim  M. Spegel  T. Sugitate  J. P. Sullivan  Y. Sumi  H. van Hecke  W. J. Willis  K. Wolf  N. Xu
Affiliation:1. Niels Bohr Institute, DK-2100, Copenhagen, Denmark
2. Los Alamos National Laboratory, 87545, Los Alamos, NM, USA
3. Creighton University, Omaha, NE, USA
4. Columbia University, 10027, New York, NY, USA
5. Hiroshima University, 724, Higashi-Hiroshima, Japan
6. CERN, CH-1211, Geneva 23, Switzerland
7. University of Pittsburgh, 15260, Pittsburgh, PA, USA
10. Tbilisi State University, Tbilisi, Georgia
12. University of Lund, S-22362, Lund, Sweden
13. Texas A&M University, 77843, College Station, TX, USA
14. Brookhaven National Laboratory, 11973, Upton, NY, USA
Abstract:
CERN experiment NA44 measures pion and kaon distributions atpT=0–320 MeV/c at midrapidity in p+A and A+A collisions at 450 and 200A GeV/c, respectively. Pion production from p+Pb and A+A is slightly enhanced at lowpT relative to p+Be, but less than observed at target rapidity. The lowpT behavior can be understood in the context of the RQMD model as arising from baryonic resonance decays.
Keywords:
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