TY - JOUR
T1 - Quasi-instantons in QCD with chiral symmetry restoration
AU - Kanazawa, Takuya
AU - Yamamoto, Naoki
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/5/20
Y1 - 2015/5/20
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevD.91.105015
DO - 10.1103/PhysRevD.91.105015
M3 - Article
AN - SCOPUS:84930669604
SN - 1550-7998
VL - 91
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 10
M1 - 105015
ER -