B-physics with $N_f=2$ Wilson fermions

F. Bernardoni; B. Blossier; J. Bulava; M. Della Morte; P. Fritzsch; N. Garron; A. Gerardin; J. Heitger; G. von Hippel; H. Simma; R. Sommer

B-physics with $N_f=2$ Wilson fermions

High Energy Physics - Lattice 2013-09-05 v1

Authors: F. Bernardoni , B. Blossier , J. Bulava , M. Della Morte , P. Fritzsch , N. Garron , A. Gerardin , J. Heitger , G. von Hippel , H. Simma , R. Sommer

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Abstract

We report the final results of the ALPHA collaboration for some B-physics observables: $f_B$ , $f_{B_s}$ and $m_b$ . We employ CLS configurations with 2 flavors of $O(a)$ improved Wilson fermions in the sea and pion masses ranging down to 190 MeV. The b-quark is treated in HQET to order $1/m_b$ . The renormalization, the matching and the improvement were performed non-perturbatively, and three lattice spacings reaching $a=0.048$ fm are used in the continuum extrapolation.

Keywords

b meson physics rare decays qcd corrections in b decays

Cite

@article{arxiv.1309.1074,
  title  = {B-physics with $N_f=2$ Wilson fermions},
  author = {F. Bernardoni and B. Blossier and J. Bulava and M. Della Morte and P. Fritzsch and N. Garron and A. Gerardin and J. Heitger and G. von Hippel and H. Simma and R. Sommer},
  journal= {arXiv preprint arXiv:1309.1074},
  year   = {2013}
}

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