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arXiv · 1211.1488

N_f=2 chiral dynamics in the mixed chiral regime

Pilar Hernández·Silvia Necco·Carlos Pena·Grégory Vulvert
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Abstract

We present a study of the pseudoscalar propagator in the mixed chiral regime with valence quark masses in the ε-regime and sea quark masses in the p-regime. We first show the NNLO prediction of this observable in the chiral expansion. In sectors of fixed topology, the correlator has a pole in 1/m_v^2 that can be matched to the topological zero-mode contributions to the correlator. We compute the residue of this pole in a N_f=2 mixed-action simulation and compare the results with the prediction in Chiral Perturbation Theory.

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Pilar Hernández, Silvia Necco, Carlos Pena, Grégory Vulvert. 2012-11-07. N_f=2 chiral dynamics in the mixed chiral regime. https://arxiv.org/abs/1211.1488

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