Width difference of the B_s mesons from lattice QCD

Details Width difference of the B_s mesons from lattice QCD Width difference of the B_s mesons from lattice QCD

2001-04-09

arxiv.org/abs/hep-ph/0104080v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 3 figures; to appear in the Proceedings of the 4th International Workshop on B Physics and CP Violation (BCP4), 19-23

Scientific paper

We extend our previous studies to calculate the B meson B parameters B_B and B_S on the lattice, and present an update of the results for the B_s meson width difference. We perform an extensive study of systematic errors in the quenched calculation of the B-parameters, and find that the systematic errors are in good control using the NRQCD action for heavy quark. We also report our preliminary results from unquenched simulations.

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