Spectator Effects in Inclusive Decays of Beauty Hadrons

Details Spectator Effects in Inclusive Decays of Beauty Hadrons Spectator Effects in Inclusive Decays of Beauty Hadrons

1998-09-13

arxiv.org/abs/hep-lat/9809083v3

Nucl.Phys.Proc.Suppl.73:384-386,1999

Physics

High Energy Physics

High Energy Physics - Lattice

LATTICE98. 3 pages, no figures

Scientific paper

10.1016/S0920-5632(99)85081-6

We evaluate the matrix elements of the four-quark operators which contribute
to the lifetimes of $B$-mesons and the $\Lambda_b$-baryon. We find that the
spectator effects are not responsible for the discrepancy between the
theoretical prediction and experimental measurement of the ratio of lifetimes
$\tau(\Lambda_b)/\tau(B)$.

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