F_B from moving B mesons

S. Collins; G. Cowan; C. T. H. Davies; J. Hein; G. P. Lepage; C. Morningstar; J. Shigemitsue

doi:10.1016/S0920-5632(01)01729-7

F_B from moving B mesons

High Energy Physics - Lattice 2009-11-07 v1

Authors: S. Collins , G. Cowan , C. T. H. Davies , J. Hein , G. P. Lepage , C. Morningstar , J. Shigemitsue

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Abstract

We show results for the B meson decay constant calculated both for B mesons at rest and those with non-zero momentum and using both the temporal and spatial components of the axial vector current. It is an important check of lattice systematic errors that all these determinations of f_B should agree. We also describe how well different smearings for the B meson work at non-zero momentum - the optimal smearing has a narrow smearing for the b quark.

Keywords

lattice qcd meson decay b meson physics

Cite

@article{arxiv.hep-lat/0110003,
  title  = {F_B from moving B mesons},
  author = {S. Collins and G. Cowan and C. T. H. Davies and J. Hein and G. P. Lepage and C. Morningstar and J. Shigemitsue},
  journal= {arXiv preprint arXiv:hep-lat/0110003},
  year   = {2009}
}

Comments

Lattice2001(heavyquark)

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