Lattice measurement of BBs with a chiral light quark action

2007/01/31 by B. Blossier
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat

paper · pdf · doi:10.1016/j.nuclphysbps.2007.08.122

published as Nucl.Phys.Proc.Suppl.174:189-192,2007 · Talk given at QCD06, Montpellier July 06, 5 pages, 3 figures, preprint DESY 07-010

arxiv created 2007/02/14 · openalex publication_date 2007/12/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The computation on the lattice of the bag parameter B_Bs associated to the B_s - 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^MSstat_Bs(m_b)=0.92(3).

Citations

• Effects of Superheavy Quarks and Leptons in Low-Energy Weak Processes KL-> Formula, K+-> + Formula and K0 Formula0
• B-parameters of the complete set of matrix elements of (ΔB = 2) operators from the lattice