Standard model matrix elements for neutral B-meson mixing and associated decay constants

L. Lellouch*, Chi-Jen Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

We present results of quenched lattice calculations of the matrix elements relevant for Bd - B̄d and Bs - B̄s, mixing in the standard model. Results for the corresponding S U(3)-breaking ratios, which can be used to constrain or determine |Vtd|, are also given. The calculations are performed at two values of the lattice spacing, corresponding to β=6.0 and β=6.2, with quarks described by a mean-field-improved Sheikholeslami-Wohlert action. As a by-product, we obtain the leptonic decay constants of B and D mesons. We also present matrix elements relevant for D0 - D̄0 mixing. Our results are summarized in the Introduction.

Original languageEnglish
Article number094501
Pages (from-to)945011-9450119
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume64
Issue number9
DOIs
StatePublished - 1 Nov 2001

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