Computing K and D meson masses with N_f = 2+1+1 twisted mass lattice QCD

Details Computing K and D meson masses with N_f = 2+1+1 twisted mass lattice QCD Computing K and D meson masses with N_f = 2+1+1 twisted mass lattice QCD

2010-05-12

arxiv.org/abs/1005.2042v1

Comput.Phys.Commun.182:299-316,2011

Physics

High Energy Physics

High Energy Physics - Lattice

30 pages, 10 figures

Scientific paper

10.1016/j.cpc.2010.10.004

We discuss the computation of the mass of the K and D mesons within the framework of N_f = 2+1+1 twisted mass lattice QCD from a technical point of view. These quantities are essential, already at the level of generating gauge configurations, being obvious candidates to tune the strange and charm quark masses to their physical values. In particular, we address the problems related to the twisted mass flavor and parity symmetry breaking, which arise when considering a non-degenerate (c,s) doublet. We propose and verify the consistency of three methods to extract the K and D meson masses in this framework.

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