English

Neutral B Meson Mixing and Heavy-light Decay Constants from Quenched Lattice QCD

High Energy Physics - Lattice 2019-08-14 v3 High Energy Physics - Phenomenology

Abstract

We present high-statistics results for neutral BB-meson mixing and heavy-light-meson leptonic decays in the quenched approximation from tadpole-improved clover actions at β=6.0\beta = 6.0 and β=6.2\beta = 6.2. We consider quantities such as BBd(s)B_{B_{d(s)}}, fDd(s)f_{D_{d(s)}}, fBd(s)f_{B_{d(s)}} and the full ΔB=2\Delta B=2 matrix elements as well as the corresponding SU(3)-breaking ratios. These quantities are important for determining the CKM matrix element Vtd|V_{td}|.

Keywords

Cite

@article{arxiv.hep-lat/9809018,
  title  = {Neutral B Meson Mixing and Heavy-light Decay Constants from Quenched Lattice QCD},
  author = {Laurent Lellouch and C. -J. David Lin},
  journal= {arXiv preprint arXiv:hep-lat/9809018},
  year   = {2019}
}

Comments

LATTICE98(heavyqk). Revised version. Typos in the second and third equations corrected. Very small changes to text. Results unchanged