Elucidating the vacuum structure of the Aoki phase

Azcoiti,V. (Universidad de Zaragoza) ; Di Carlo,G. ; Follana,E. (Universidad de Zaragoza) ; Vaquero,A.

Resumen: In this paper, we discuss the vacuum structure of QCD with two flavors of Wilson fermions, inside the Aoki phase. We provide numerical evidence, coming from HMC simulations in 44, 64 and 84 lattices, supporting a vacuum structure for this model at strong coupling more complex than the one assumed in the standard wisdom, with new vacua where the expectation value of i¿¯¿5¿ can take non-zero values, and which can not be connected with the Aoki vacua by parity–flavor symmetry transformations.

Idioma: Inglés

DOI: 10.1016/j.nuclphysb.2013.01.008

Año: 2013

Publicado en: NUCLEAR PHYSICS B 870, 1 (2013), 138-158
ISSN: 0550-3213

Factor impacto JCR: 3.946 (2013)

Categ. JCR: PHYSICS, PARTICLES & FIELDS rank: 8 / 27 = 0.296 (2013) - Q2 - T1

Financiación: info:eu-repo/grantAgreement/ES/DGA/E24-2
Financiación: info:eu-repo/grantAgreement/EC/FP7/238353/EU/Strong Interaction Supercomputing Training Network/STRONGNET
Financiación: info:eu-repo/grantAgreement/ES/INFN–MICINN/AIC-D-2011-0663
Financiación: info:eu-repo/grantAgreement/ES/MICINN/FPA2008-10732
Financiación: info:eu-repo/grantAgreement/ES/MICINN/FPA2009-09638

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Física Teórica (Dpto. Física Teórica)