corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 82 » Issue 21
< Previous Article | Next Article >

Phys. Rev. Lett. 82, 4192–4195 (1999)

Antibaryon Density in the Central Rapidity Region of Heavy-Ion Collisions

Download: PDF (114 kB) Buy this article Export: BibTeX or EndNote (RIS)

Jacek Dziarmaga1,2 and Mariusz Sadzikowski3
1Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland
2Theoretical Astrophysics T-6, MS-B288, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
3Institute of Nuclear Physics, Radzikowskiego 152, 31-342 Kraków, Poland

Received 7 October 1998; published in the issue dated 24 May 1999

We consider (anti-) baryon production in relativistic heavy-ion collisions as a production of topological defects during the chiral phase transition. Nonzero light quark masses, which explicitly break chiral symmetry, suppress the (anti-) baryon density. Hardly any (anti-) baryons will be produced in the central rapidity region of a heavy-ion collision. The antibaryon suppression may serve as a signal of quark-gluon plasma production.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.82.4192
DOI:
10.1103/PhysRevLett.82.4192
PACS:
25.75.Dw, 12.38.Mh, 12.39.Fe, 24.85.+p
 
< Previous Article | Next Article >