The η′ meson at the physical point with Nf = 2 Wilson twisted mass fermions

6533b821fe1ef96bd127c248

RESEARCH PRODUCT

The η′ meson at the physical point with Nf = 2 Wilson twisted mass fermions

Christian Jost Bartosz Kostrzewa Christopher Helmes Markus Werner Urs Wenger Bastian Knippschild Liuming Liu Konstantin Ottnad Konstantin Ottnad Carsten Urbach

subject

Physics Particle physics Physical point Meson 530 Physics 010308 nuclear & particles physics Physics QC1-999 High Energy Physics::Lattice High Energy Physics::Phenomenology Nuclear Theory Flavour Lattice QCD Fermion 01 natural sciences Pion 0103 physical sciences High Energy Physics::Experiment Twist Nuclear Experiment 010306 general physics

description

We present results for the η′ meson and the topological susceptibility in Nf = 2 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.

year	journal	country	edition	language
2018-03-26	EPJ Web of Conferences

https://doi.org/10.1051/epjconf/201817505025

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