The strange quark mass and Lambda parameter of two flavor QCD

We complete the non-perturbative calculations of the strange quark mass and the Lambda parameter in two flavor QCD by the ALPHA collaboration. The missing lattice scale is determined via the kaon decay constant, for whose chiral extrapolation complementary strategies are compared. We also give a val...

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Detalles Bibliográficos
Autores principales: Fritzsch, Patrick, Knechtli, Francesco, Leder, Bjorn, Marinkovic, Marina, Schaefer, Stefan, Sommer, Rainer, Virotta, Francesco
Lenguaje:eng
Publicado: 2012
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysb.2012.07.026
http://cds.cern.ch/record/1451711
Descripción
Sumario:We complete the non-perturbative calculations of the strange quark mass and the Lambda parameter in two flavor QCD by the ALPHA collaboration. The missing lattice scale is determined via the kaon decay constant, for whose chiral extrapolation complementary strategies are compared. We also give a value for the scale r_0 in physical units as well as an improved determination of the renormalization constant Z_A.

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