Lattice QCD with mixed action – Borici-Creutz valence quark on staggered sea

Subhasish Basak; Jishnu Goswami; Dipankar Chakrabarti

doi:10.1051/epjconf/201817505001

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 175, 05001 (2018)
https://doi.org/10.1051/epjconf/201817505001

Lattice QCD with mixed action – Borici-Creutz valence quark on staggered sea

Subhasish Basak¹^*, Jishnu Goswami² and Dipankar Chakrabarti²

¹ School of Physical Sciences, NISER Bhubaneswar, Odisha 752050, India
² Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208016, India

^* Speaker, e-mail: sbasak@niser.ac.in

Published online: 26 March 2018

Abstract

Mixed action lattice QCD with Borici-Creutz valence quarks on staggered sea is investigated. The counter terms in Borici-Creutz action are fixed nonperturbatively to restore the broken symmetries. On symmetry restoration, the usual signatures of partial quenching / unitarity violation like negative scalar correlator are observed. The size of unitarity violation due to different discretization of valence and sea quark is determined by measuring Δ_mix.

© The Authors, published by EDP Sciences, 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).