Λ_b Lifetime from the HQET Sum Rule

Details Λ_b Lifetime from the HQET Sum Rule Λ_b Lifetime from the HQET Sum Rule

2001-12-14

arxiv.org/abs/hep-ph/0112204v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, latex, no figures, uses sprocl.sty (included). Talk by C. Liu at Int. Conf. on Flavor Phys., Zhang-Jia-Jie, 31/5-6/6

Scientific paper

The HQET sum rule analysis for the \Lambda_b matrix element of the four-quark
operator relevant to its lifetime is reported. Our main conclusion is that the
lifetime ratio \tau(\Lambda_b)/\tau(B^0) can be as low as 0.91.

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