B_s-\bar{B_s} mixing with a chiral light quark action

Details B_s-\bar{B_s} mixing with a chiral light quark action B_s-\bar{B_s} mixing with a chiral light quark action

2005-09-28

arxiv.org/abs/hep-lat/0509165v1

PoS LAT2005:218,2006

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, 3 figures, talk presented at Lattice 2005 (Heavy quark physics)

Scientific paper

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 $B^{\bar{\rm
MS}}_{B_s}(m_b)=0.940(16)(22)$.

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