Speaker
Alejandro Vaquero
(Universidad de Zaragoza)
Description
Continuing with the work exposed in the last lattice conference [Phys.Rev.D79:014509,2009, PoS(LAT2009)068], and in order to distinguish between the two different scenarios proposed by us and Sharpe [Phys.Rev.D79:054503,2009], we present data of simulations of QCD with two flavours of dynamical Wilson fermions, inside the Aoki phase and without an external source $\bar\psi\gamma_5\tau_3\psi$. Two different algorithms, MFA and the hybrid montecarlo, were used, and a consistency check was performed. During the simulations we measured, using the P.D.F. (probability distribution function) formalism, the second moment of the relevant order parameters of the Aoki phase, namely $\langle\left(i\bar\psi\gamma_5\psi\right)^2\rangle$ and $\langle\left(i\bar\psi\gamma_5\tau_3\psi\right)^2\rangle$. These numerical results allow us to improve our understanding of the Aoki phase.
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Primary authors
Alejandro Vaquero
(Universidad de Zaragoza)
Dr
Eduardo Follana
(Universidad de Zaragoza)
Dr
Giuseppe Di Carlo
(INFN Laboratorio Gran Sasso)
Prof.
Vicente Azcoiti
(Universidad de Zaragoza)
