How disoriented chiral condensates form: Quenching versus annealing

Journal Article · Mon Apr 17 00:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.74.3126· OSTI ID:44872

Asakawa, M; Huang, Z; Wang, X ^[1]

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1. Nuclear Science Division, MS 70A-3307, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)

We demonstrate that fluctuations, their relaxation, and the chiral phase transition are automatically incorporated in the numerical simulations of the classical equations of motion in the linear {sigma} model when longitudinal and transverse expansions are included. We find that domains of disoriented chiral condensate with 4--5 fm in size can form through a quench while an annealing leads to domains of smaller sizes. We also demonstrate that quenching cannot be achieved by relaxing a chirally symmetric system through expansion.

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 44872
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 74; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANNEALING
CHIRAL SYMMETRY
CONDENSATES
EQUATIONS OF MOTION
FLUCTUATIONS
PHASE TRANSFORMATIONS
QUENCHING
RELAXATION
SIGMA MODEL
SIMULATION