English

Lifetime difference of $B_s$ mesons - Theory status

High Energy Physics - Phenomenology 2008-11-26 v2

Abstract

We give an update on the lifetime difference of BsB_s mesons which accounts for recent lattice bag parameter results, and obtain (ΔΓ/Γ)Bs=(9.34.6+3.4)(\Delta\Gamma/\Gamma)_{B_s}=(9.3^{+3.4}_{-4.6})%. We then review the current theoretical uncertainties and conclude with a pessimistic perspective on further improvements.

Keywords

Cite

@article{arxiv.hep-ph/0012222,
  title  = {Lifetime difference of $B_s$ mesons - Theory status},
  author = {Martin Beneke and Alexander Lenz},
  journal= {arXiv preprint arXiv:hep-ph/0012222},
  year   = {2008}
}

Comments

7 pages, Talk presented at the UK Phenomenology Workshop on Heavy Flavour and CP Violation, 17 - 22 September 2000, St John's College, Durham. Reference corrected