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

Abstract

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.

30 pages, 10 figures

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Cited by in corpus (13)

• Light hadrons from lattice QCD with light (u,d), strange and charm dynamical quarks
• Leptonic decay constants fK, fD and fDs with Nf = 2+1+1 twisted-mass lattice QCD
• Quark masses using twisted mass fermion gauge ensembles
• Masses and decay constants of D(s)* and B(s)* mesons with Nf = 2 + 1 + 1 twisted mass fermions
• Overlap valence quarks on a twisted mass sea: a case study for mixed action Lattice QCD
• Static Energy in ($2+1+1$)-Flavor Lattice QCD: Scale Setting and Charm Effects
• A Mixed Action Analysis of $\eta$ and ${\eta }^{\prime }$ Mesons
• Extracting hadron masses from fixed topology simulations
• The hadronic vacuum polarization and automatic O(a) improvement for twisted mass fermions
• Lattice investigation of the tetraquark candidates a0(980) and kappa
• Twisted mass chiral perturbation theory for 2+1+1 quark flavours
• Towards Four-Flavour Dynamical Simulations
• First moment of the flavour octet nucleon parton distribution function using lattice QCD