Anomalous transverse distribution of pions as a signal for the production of disoriented chiral condensates

Journal Article · Sat Nov 30 23:00:00 EST 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.54.3298· OSTI ID:397728

Cooper, F; Kluger, Y; Mottola, E ^[1]

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1. Theoretical Division, MS B285, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We give evidence that the production of disoriented chiral condensates during a nonequilibrium phase transition can lead to an anomalous transverse distribution of secondary pions when compared to a more conventional boost invariant hydrodynamic flow in local thermal equilibrium. Our results pertain to the linear {sigma} model, treated in leading order in large {ital N}, in a boost invariant approximation. We also show that the interpolating number density of the field theory calculation plays the role of a classical relativistic phase space number distribution in determining the momentum distribution of pions in the center of mass frame. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 397728
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 6 Vol. 54; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CENTER-OF-MASS SYSTEM
CHIRAL SYMMETRY
CONDENSATES
DISTRIBUTION
PHASE SPACE
PHASE TRANSFORMATIONS
PIONS
SIGMA MODEL
SIGNALS
THERMAL EQUILIBRIUM