Fidelity of photon interferometry for recording the evolution of a nascent quark-gluon plasma

Journal Article · Sun May 01 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.4523· OSTI ID:5074082

Srivastava, D K ^[1]

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1. Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

The fidelity of two-photon intensity interferometry for reflecting the dynamics of a nascent quark-gluon plasma formed in a high energy nucleus-nucleus collision is examined. A (3+1)-dimensional expansion of the plasma as well as a (1+1)-dimensional expansion according to Bjorken hydrodynamics, both with a first order phase transition, are considered. The correlation of high transverse-momentum photons is shown to be a precision tool for the investigation of the space-time evolution of the high-density QCD plasma. In particular, the longitudinal correlation function, which depicts the time development of the system, is seen to have its origin in two sources: one corresponding to the early plasma phase and the second to the later stages. This aspect may help identify thermal photons according to their time of birth'' during evolution.

• DOE Contract Number: FG02-87ER40328
• OSTI ID: 5074082
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:9; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSONS
CHARGED-PARTICLE REACTIONS
DYNAMICS
ELEMENTARY PARTICLES
FIELD THEORIES
FOUR-DIMENSIONAL CALCULATIONS
HEAVY ION REACTIONS
INTERFEROMETRY
LINEAR MOMENTUM
MASSLESS PARTICLES
MATTER
MECHANICS
NUCLEAR REACTIONS
PHASE TRANSFORMATIONS
PHOTONS
PLASMA
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MATTER
SPACE-TIME
TRANSVERSE MOMENTUM