Inconclusive Inclusive Nonleptonic $B$ Decays

Details Inconclusive Inclusive Nonleptonic $B$ Decays Inconclusive Inclusive Nonleptonic $B$ Decays

1994-05-20

arxiv.org/abs/hep-ph/9405346v2

Phys.Rev. D51 (1995) 1183-1191

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 3 uuencoded figures included, uses REVTeX, preprint nos. CALT-68-1933, FERMILAB-PUB-94-106-T, JHU-TIPAC-940005, NSF-

Scientific paper

10.1103/PhysRevD.51.1183

We reconsider the conflict between recent calculations of the semileptonic branching ratio of the $B$ meson and the experimentally measured rate. Such calculations depend crucially on the application of ``local duality'' in nonleptonic decays, and we discuss the relation of this assumption to the weaker assumptions required to compute the semileptonic decay rate. We suggest that the discrepancy between theory and experiment might be due to the channel with two charm quarks in the final state, either because of a small value for $m_c$ or because of a failure of local duality. We examine the experimental consequences of such solutions for the charm multiplicity in $B$ decays.

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