Abstract
We determine the entropy-per-baryon content of the central reaction region in terms of the charged particle multiplicity. We study the consistency of our findings with recent data on strange antibaryon production at 200A GeV in S-A collisons (A∼200) assuming formation of a central fireball. Hadron gas models which do not invoke strong medium modifications of hadron masses do not provide enough entropy and are inconsistent with the combined experimental results. In contrast the quark-gluon plasma hypothesis explains them naturally.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3530-3533 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 70 |
| Issue number | 23 |
| DOIs | |
| State | Published - 1993 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Evidence for a phase with high specific entropy in nuclear collisions. / Letessier, J.; Tounsi, A.; Heinz, U.; Sollfrank, J.; Rafelski, Johann.
In: Physical Review Letters, Vol. 70, No. 23, 1993, p. 3530-3533.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Evidence for a phase with high specific entropy in nuclear collisions
AU - Letessier, J.
AU - Tounsi, A.
AU - Heinz, U.
AU - Sollfrank, J.
AU - Rafelski, Johann
PY - 1993
Y1 - 1993
N2 - We determine the entropy-per-baryon content of the central reaction region in terms of the charged particle multiplicity. We study the consistency of our findings with recent data on strange antibaryon production at 200A GeV in S-A collisons (A∼200) assuming formation of a central fireball. Hadron gas models which do not invoke strong medium modifications of hadron masses do not provide enough entropy and are inconsistent with the combined experimental results. In contrast the quark-gluon plasma hypothesis explains them naturally.
AB - We determine the entropy-per-baryon content of the central reaction region in terms of the charged particle multiplicity. We study the consistency of our findings with recent data on strange antibaryon production at 200A GeV in S-A collisons (A∼200) assuming formation of a central fireball. Hadron gas models which do not invoke strong medium modifications of hadron masses do not provide enough entropy and are inconsistent with the combined experimental results. In contrast the quark-gluon plasma hypothesis explains them naturally.
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UR - http://www.scopus.com/inward/citedby.url?scp=4243401730&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.70.3530
DO - 10.1103/PhysRevLett.70.3530
M3 - Article
VL - 70
SP - 3530
EP - 3533
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 23
ER -