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The Roberge-Weiss endpoint in N_f = 2 QCD

Bonati, Claudio and Cossu, Guido and D'Elia, Massimo and Sanfilippo, Francesco (2011) The Roberge-Weiss endpoint in N_f = 2 QCD. Physical review. D, Particles, fields, gravitation, and cosmology, 83 . 054505. ISSN 1550-7998

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SUMMARY We present the results of extensive simulations regarding the critical behavior at the endpoint of the Roberge-Weiss transition for N_f = 2 QCD. We confirm early evidence, presented in arXiv:0909.0254, according to which the Roberge-Weiss endpoint is first order in the limit of large or small quark masses, and second order for intermediate masses. A systematic study of the transition strength as a function of the quark mass in the first order regions, permits us to estimate the tricritical values of the quark mass separating the second order region from the first order ones.

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: 08 Aug 2013 14:58
Last Modified: 08 Aug 2013 14:58
URI: http://eprints.adm.unipi.it/id/eprint/1587

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