Lattice measurement of $B_{B_s}$ with a chiral light quark action

Details Lattice measurement of $B_{B_s}$ with a chiral light quark action Lattice measurement of $B_{B_s}$ with a chiral light quark action

2007-01-09

arxiv.org/abs/hep-lat/0701008v3

Nucl.Phys.Proc.Suppl.174:189-192,2007

Physics

High Energy Physics

High Energy Physics - Lattice

Talk given at QCD06, Montpellier July 06, 5 pages, 3 figures, preprint DESY 07-010

Scientific paper

10.1016/j.nuclphysbps.2007.08.12

The computation on the lattice of the bag parameter $B_{B_s}$ associated to
the $B_s - \bar{B_s}$ mixing amplitude in the Standard Model is presented. The
estimation has been made by combining the static limit of HQET and the
Neuberger light quark action which preserves the chiral symmetry on the
lattice. We find $B^{\bar{MS}}{stat}}_{B_s}(m_b)=0.92(3)$.

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