B-physics with $N_f=2$ Wilson fermions

  title={B-physics with \$N_f=2\$ Wilson fermions},
  author={F.Bernardoni and B.Blossier and John Bulava and Michele Della Morte and Patrick Fritzsch and Nicolas Garron and Antoine Gerardin and Jochen Heitger and Georg M. von Hippel and Hubert Simma and Rainer Sommer},
  journal={arXiv: High Energy Physics - Lattice},
  • F.Bernardoni, B.Blossier, +8 authors Rainer Sommer
  • Published 2013
  • Physics
  • arXiv: High Energy Physics - Lattice
  • 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. 

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