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

Journal Article · Sat May 01 04:00:00 EDT 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.82.4192· OSTI ID:341421

Dziarmaga, J ^[1]; Dziarmaga, J ^[2]; Sadzikowski, M ^[3]

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1. Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow (Poland)
2. Theoretical Astrophysics T-6, MS-B288, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
3. Institute of Nuclear Physics, Radzikowskiego 152, 31-342 Krakow (Poland)

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. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 341421
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 21 Vol. 82; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BARYONS
CHIRAL SYMMETRY
HEAVY ION REACTIONS
PARTICLE PRODUCTION
QUARK MATTER
QUARK-GLUON INTERACTIONS
SYMMETRY BREAKING