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SU(N) gauge theories in the presence of a topological term

Debbio, Luigi Del and Panagopoulos, Haralambos and Vicari, Ettore (2008) SU(N) gauge theories in the presence of a topological term. Journal of physics: conference series, 110 (12). ISSN 1742-6596

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We review recent results on the theta dependence of the ground-state energy and spectrum of four-dimensional SU(N) gauge theories, where theta is the coefficient of the CP-violating topological term F-Fdual in the Lagrangian. In particular, we discuss the results obtained by Monte Carlo simulations of the lattice formulation of QCD, which allow the investigation of theta dependence around theta=0 by determining the moments of the topological charge distribution, and their correlations with other observables. The results for N=3 and larger values of N support the scenario obtained by general large-N scaling arguments.

Item Type: Article
Additional Information: Imported from arXiv
Subjects: Area02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici
Divisions: Dipartimenti (from 2013) > DIPARTIMENTO DI FISICA
Depositing User: dott.ssa Sandra Faita
Date Deposited: 11 Feb 2014 14:44
Last Modified: 11 Feb 2014 14:44
URI: http://eprints.adm.unipi.it/id/eprint/1911

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