Quasi-instantons in QCD with chiral symmetry restoration

Takuya Kanazawa, Naoki Yamamoto

研究成果: Article査読

9 被引用数 (Scopus)

抄録

We show, without using semiclassical approximations, that, in high-temperature QCD with chiral symmetry restoration and U(1)A symmetry breaking, the partition function for sufficiently light quarks can be expressed as an ensemble of noninteracting objects with topological charge that obey the Poisson statistics. We argue that the topological objects are "quasi-instantons" (rather than bare instantons) taking into account quantum effects. Our result is valid even close to the (pseudo)critical temperature of the chiral phase transition.

本文言語English
論文番号105015
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
91
10
DOI
出版ステータスPublished - 2015 5 20

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

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