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arXiv · hep-ph/0104080

Width difference of the B_s mesons from lattice QCD

Shoji Hashimoto·Norikazu Yamada
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Abstract

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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Shoji Hashimoto, Norikazu Yamada. 2001-04-09. Width difference of the B_s mesons from lattice QCD. https://doi.org/10.1142/9789812811219_0035

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