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Mixed action with Borici-Creutz fermions on staggered sea

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arxiv 1707.06402 v2 pith:VVJHWBJ7 submitted 2017-07-20 hep-lat

S. Basak , D. Chakrabarti , J. Goswami This is my paper · ORCID
classification hep-lat
keywords actionborici-creutzmixedstaggeredunitarityvalenceviolationbroken
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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 parity and time 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 $\Delta_{\rm mix}$ and is found to be comparable with other mixed action studies.

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  1. Eigenspectra of Minimally Doubled Fermions

    hep-lat 2025-01 conditional novelty 4.0 of 10

    Numerical spectral flow and modified chirality operators show that Karsten-Wilczek and Borici-Creutz minimally doubled fermions satisfy the index theorem on an 8^4 SU(3) lattice with Q_top = -2.

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