$B_s$-$\bar{B_s}$ mixing from lattice QCD

B. Blossier

$B_s$-$\bar{B_s}$ mixing from lattice QCD

High Energy Physics - Lattice 2007-05-23 v1 High Energy Physics - Phenomenology

Authors: B. Blossier

Abstract

We study the $B^0_s-\bar{B^0_s}$ mixing amplitude in Standard Model by computing the relevant hadronic matrix element in the static limit of lattice HQET with the Neuberger light quark action. In the quenched approximation, and after matching to the $\bar{\rm MS}$ scheme in QCD, we obtain $\hat{B}^{\bar{\rm MS},{\rm NLO}}_{B_s}(m_b)=0.940(16)(22)$ .

Keywords

Bs mixing lattice QCD HQET Neuberger quark action hadronic matrix element standard model

Cite

@article{arxiv.hep-lat/0505013,
  title  = {$B_s$-$\bar{B_s}$ mixing from lattice QCD},
  author = {B. Blossier},
  journal= {arXiv preprint arXiv:hep-lat/0505013},
  year   = {2007}
}

Comments

talk given at the Electroweak session of Moriond 2005

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