Matrix Elements of Four-quark Operators Relevant to Lifetime Difference ΔΓ_{B_s} from QCD Sum Rules

Details Matrix Elements of Four-quark Operators Relevant to Lifetime Difference ΔΓ_{B_s} from QCD Sum Rules Matrix Elements of Four-quark Operators Relevant to Lifetime Difference ΔΓ_{B_s} from QCD Sum Rules

2000-11-10

arxiv.org/abs/hep-ph/0011145v3

Eur.Phys.J.C21:313-318,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 4 eps figures, Latex. Some reference renewed

Scientific paper

10.1007/s100520100724

We extract the matrix elements of four quark operators O_{L,S} relevant to
the B_s and \bar B_s life time difference from QCD sum rules. We find the
vacuum saturation approximation works reasonably well, i.e., within 10%. We
discuss the implications of our results and compare them with the recent
lattice QCD determination.

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