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Conference Paper/Proceeding/Abstract 486 views

Spontaneous breaking of discrete symmetries in QCD on a small volume

Agostino Patella, Claudio Pica, Biagio Lucini Orcid Logo

Volume: "957", Pages: 229 - 232

Swansea University Author: Biagio Lucini Orcid Logo

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DOI (Published version): 10.1063/1.2823768

Abstract

In a compact space with non-trivial cycles, for sufficiently small values of the compact dimensions, charge conjugation (C), spatial reflection (P) and time reversal (T) are spontaneously broken in QCD. The order parameter for the symmetry breaking is the trace of the Wilson line wrapping around the...

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Published: 2007
Online Access: http://inspirehep.net/record/760080
URI: https://cronfa.swan.ac.uk/Record/cronfa27929
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Abstract: In a compact space with non-trivial cycles, for sufficiently small values of the compact dimensions, charge conjugation (C), spatial reflection (P) and time reversal (T) are spontaneously broken in QCD. The order parameter for the symmetry breaking is the trace of the Wilson line wrapping around the compact dimension, which acquires an imaginary part in the broken phase. We show that a physical signature for the symmetry breaking is a persistent baryonic current wrapping in the compact directions. The existence of such a current is derived analytically at first order in perturbation theory and confirmed in the non-perturbative regime by lattice simulations.
College: College of Science
Start Page: 229
End Page: 232