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Title: PARITY ODD BUBBLES IN HOT QCD.

Abstract

We consider the topological susceptibility for an SU(N) gauge theory in the limit of a large number of colors, N {r_arrow} {infinity}. At nonzero temperature, the behavior of the topological susceptibility depends upon the order of the deconfining phase transition. The most interesting possibility is if the deconfining transition, at T = T{sub d}, is of second order. Then we argue that Witten's relation implies that the topological susceptibility vanishes in a calculable fashion at Td. As noted by Witten, this implies that for sufficiently light quark masses, metastable states which act like regions of nonzero {theta}--parity odd bubbles--can arise at temperatures just below T{sub d}. Experimentally, parity odd bubbles have dramatic signatures: the {eta}{prime} meson, and especially the {eta} meson, become light, and are copiously produced. Further, in parity odd bubbles, processes which are normally forbidden, such as {eta} {r_arrow} {pi}{sup 0}{pi}{sup 0}, are allowed. The most direct way to detect parity violation is by measuring a parity odd global asymmetry for charged pions, which we define.

Authors:
; ;
Publication Date:
Research Org.:
Brookhaven National Lab., Upton, NY (US)
Sponsoring Org.:
RIKEN/BNL/DOE (US)
OSTI Identifier:
782641
Report Number(s):
BNL-68354; KB0201
R&D Project: PO03; KB0201; TRN: US0103423
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: CONFERENCE ON CONTINUOUS ADVANCES IN QCD 1998 WORKSHOP DEDICATED TO THE MEMORY OF V.N. GRIBOV, MINNEAPOLIS, MN (US), 04/16/1998--04/19/1998; Other Information: PBD: 16 Apr 1998
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASYMMETRY; BUBBLES; METASTABLE STATES; PARITY; QUANTUM CHROMODYNAMICS; QUARKS; PIONS NEUTRAL; ETA MESONS; P INVARIANCE

Citation Formats

KHARZEEV,D., PISARSKI,R.D., and TYTGAT,M.H.G. PARITY ODD BUBBLES IN HOT QCD.. United States: N. p., 1998. Web.
KHARZEEV,D., PISARSKI,R.D., & TYTGAT,M.H.G. PARITY ODD BUBBLES IN HOT QCD.. United States.
KHARZEEV,D., PISARSKI,R.D., and TYTGAT,M.H.G. Thu . "PARITY ODD BUBBLES IN HOT QCD.". United States. https://www.osti.gov/servlets/purl/782641.
@article{osti_782641,
title = {PARITY ODD BUBBLES IN HOT QCD.},
author = {KHARZEEV,D. and PISARSKI,R.D. and TYTGAT,M.H.G.},
abstractNote = {We consider the topological susceptibility for an SU(N) gauge theory in the limit of a large number of colors, N {r_arrow} {infinity}. At nonzero temperature, the behavior of the topological susceptibility depends upon the order of the deconfining phase transition. The most interesting possibility is if the deconfining transition, at T = T{sub d}, is of second order. Then we argue that Witten's relation implies that the topological susceptibility vanishes in a calculable fashion at Td. As noted by Witten, this implies that for sufficiently light quark masses, metastable states which act like regions of nonzero {theta}--parity odd bubbles--can arise at temperatures just below T{sub d}. Experimentally, parity odd bubbles have dramatic signatures: the {eta}{prime} meson, and especially the {eta} meson, become light, and are copiously produced. Further, in parity odd bubbles, processes which are normally forbidden, such as {eta} {r_arrow} {pi}{sup 0}{pi}{sup 0}, are allowed. The most direct way to detect parity violation is by measuring a parity odd global asymmetry for charged pions, which we define.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Apr 16 00:00:00 EDT 1998},
month = {Thu Apr 16 00:00:00 EDT 1998}
}

Conference:
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