The $\eta^\prime$ meson at the physical point with $N_f=2$ Wilson twisted mass fermions

We present results for the eta prime meson and the topological susceptibility in two flavour lattice QCD. The results are obtained using Wilson twisted mass fermions at maximal twist with pion masses ranging from 340 MeV down to the physical point. A comparison to literature values is performed givi...

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Bibliographic Details
Main Authors Helmes, Christopher, Knippschild, Bastian, Kostrzewa, Bartosz, Liu, Liuming, Jost, Christian, Ottnad, Konstantin, Urbach, Carsten, Wenger, Urs, Werner, Markus
Format Journal Article
LanguageEnglish
Published 10.10.2017
Subjects
Physics - High Energy Physics - Lattice
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Summary:We present results for the eta prime meson and the topological susceptibility in two flavour lattice QCD. The results are obtained using Wilson twisted mass fermions at maximal twist with pion masses ranging from 340 MeV down to the physical point. A comparison to literature values is performed giving a handle on discretisation effects.
DOI:10.48550/arxiv.1710.03698