QCD Critical End Point: How it started, How it grew, and Where it goes

Journal Article · Fri May 06 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3584052· OSTI ID:21516814

Asakawa, Masayuki ^[1]

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1. Department of Physics, Osaka University, Toyonaka, 560-0043 (Japan)

The presence of a critical end point in the QCD phase diagram can deform the trajectories describing the evolution of the expanding fireball in the {mu}{sub B}-T phase diagram. If the average emission time of hadrons is a function of transverse velocity, as microscopic simulations of the hadronic freezeout dynamics suggest, the deformation of the hydrodynamic trajectories will change the transverse velocity ({beta}{sub T}) dependence of the antiproton-to-proton ratio when the fireball passes in the vicinity of the critical end point. An unusual {beta}{sub T}-dependence of the p-bar/p ratio in a narrow beam energy window would thus signal the presence of the critical end point.

• OSTI ID: 21516814
• Journal Information: AIP Conference Proceedings, Vol. 1355, Issue 1; Conference: International symposium on new faces of atomic nuclei, Okinawa (Japan), 15-17 Nov 2010; Other Information: DOI: 10.1063/1.3584052; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIPROTONS
BEAMS
CHIRALITY
DEFORMATION
EMISSION
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
QUANTUM CHROMODYNAMICS
SIMULATION
VELOCITY
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
BARYONS
DIAGRAMS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
INFORMATION
MATTER
NUCLEI
NUCLEONS
PARTICLE PROPERTIES
PROTONS
QUANTUM FIELD THEORY