Disoriented chiral condensate formation from a state with collective pion fields

T. Bíró, Dénes Molnár, Zhonghan Feng, László P. Csernai

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

At high temperatures it is believed that one can create a highly excited state, the starting point of disoriented chiral condensate (DCC) formation, which is sitting at the top of a potential barrier. We study here instead the evolution of a state where energy is stored initially in the collective motion too, in particular, in chiral rotations representing collective pion fields. We simulate the creation of such an initial state by letting the hot system evolve in time without cooling. It covers the microcanonically allowed phase space if the classical dynamics of the system is chaotic. We find the collective field dynamics chaotic in the linear σ model coupled to quarks with explicit symmetry breaking. A rapid linear expansion from such initial states leads eventually to DCC formation.

Original languageEnglish
Pages (from-to)6900-6909
Number of pages10
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume55
Issue number11
Publication statusPublished - Jun 1 1997

Fingerprint

Condensate
condensates
pions
Collective Motion
broken symmetry
Excited States
Chaotic Dynamics
quarks
cooling
Symmetry Breaking
expansion
Quarks
Cooling
Linear Model
Phase Space
Cover
excitation
Energy
energy

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Disoriented chiral condensate formation from a state with collective pion fields. / Bíró, T.; Molnár, Dénes; Feng, Zhonghan; Csernai, László P.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 55, No. 11, 01.06.1997, p. 6900-6909.

Research output: Contribution to journalArticle

Bíró, T. ; Molnár, Dénes ; Feng, Zhonghan ; Csernai, László P. / Disoriented chiral condensate formation from a state with collective pion fields. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 1997 ; Vol. 55, No. 11. pp. 6900-6909.
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