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$M_b$ and $f_B$ from non-perturbatively renormalized HQET with $N_f$=2 light quarks

We present an updated analysis of the non-perturbatively renormalized b-quark mass and B meson decay constant based on CLS lattices with two dynamical non-perturbatively improved Wilson quarks. This update incorporates additional light quark masses and lattice spacings in large physical volume to im...

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Detalles Bibliográficos
Autores principales: Blossier, Benoit, Bulava, John, Della Morte, Michele, Donnellan, Michael, Fritzsch, Patrick, Garron, Nicolas, Heitger, Jochen, von Hippel, Georg, Simma, Hubert, Sommer, Rainer
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.139.0280
http://cds.cern.ch/record/1410399
Descripción
Sumario:We present an updated analysis of the non-perturbatively renormalized b-quark mass and B meson decay constant based on CLS lattices with two dynamical non-perturbatively improved Wilson quarks. This update incorporates additional light quark masses and lattice spacings in large physical volume to improve chiral extrapolations and to reach the continuum limit. We use Heavy Quark Effective Theory (HQET) including 1/m_b terms with non-perturbative coefficients based on the matching of QCD and HQET developed by the ALPHA collaboration during the past years.