pi_0 --> gamma gamma and the axial anomaly at non zero temperature

Simple item page
dc.creatorPisarski, Robert D.
dc.creatorTytgat, Michel
dc.date1997-05-14
dc.date.accessioned2026-07-07T04:01:45Z
dc.date.available2026-07-07T04:01:45Z
dc.descriptionIn vacuum, in the chiral limit the coupling of a pion to two on-shell photons is directly related to the coefficient of the axial anomaly in QED. This relationship is lost at any nonzero temperature. Explicit calculations show that the coupling decreases with temperature and vanishes at Tc, the temperature of chiral symmetry restoration.
dc.description4 pages, latex, 2 figs using epsfig. Contribution to the 31st Rencontres de Moriond, "QCD and High Energy Hadronic Interactions", March 97
dc.identifierhttps://arxiv.org/abs/hep-ph/9705316
dc.identifierhttp://arxiv.org/abs/hep-ph/9705316
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/46960
dc.subjectHigh Energy Physics - Phenomenology
dc.titlepi_0 --> gamma gamma and the axial anomaly at non zero temperature
dc.typetext

Files

Collections

arXiv