Secondary phi meson peak as an indicator of a QCD phase transition in ultrarelativistic heavy-ion collisions

Journal Article · Wed Nov 30 23:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.3064· OSTI ID:6847951

Asakawa, M ^[1]; Ko, C M ^[2]

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1. Nuclear Science Division, MS 70A-3307, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)
2. Cyclotron Institute and Physics Department, Texas A M University, College Station, Texas 77843-3366 (United States)

In a previous paper, we have shown that a double phi peak structure appears in the dilepton invariant mass spectrum if a first order QCD phase transition occurs in ultrarelativistic heavy-ion collisions. Furthermore, the transition temperature can be determined from the transverse momentum distribution of the low mass phi peak. In this work, we extend the study to the case that a smooth crossover occurs in the quark-gluon plasma to the hadronic matter transition. We find that the double phi peak structure still exists in the dilepton spectrum and thus remains a viable signal for the formation of the quark-gluon plasma in ultrarelativistic heavy-ion collisions.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6847951
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:6; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

662230 -- Quantum Chromodynamics-- (1992-)
663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSONS
CHARGED-PARTICLE REACTIONS
CORRELATION FUNCTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
FUNCTIONS
HADRONS
HEAVY ION REACTIONS
LEPTONS
LINEAR MOMENTUM
MASS SPECTRA
MATTER
MESONS
NUCLEAR REACTIONS
PHASE TRANSFORMATIONS
PHI-1020 MESONS
PHI-1680 MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MATTER
QUARKONIUM
RELATIVISTIC RANGE
SPECTRA
STRANGEONIUM
TEMPERATURE DEPENDENCE
TRANSVERSE MOMENTUM
VECTOR MESONS