A lattice NRQCD computation of the bag parameters for ΔBΔB = 2 operators

preprint1999arXivOpen access

Abstract

We present an update of our NRQCD calculation of BBB_B at ββ=5.9 with increased statistics. We also discuss a calculation of BSB_S, which is relevant to the width difference in the Bs−BˉsB_s-\bar{B}_s mixing.

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