Lifetime difference of B-s mesons - theory status

Authors
Beneke, M Lenz, A
Citation
M. Beneke et A. Lenz, Lifetime difference of B-s mesons - theory status, J PHYS G-NU, 27(6), 2001, pp. 1219-1224
Citations number
31
Categorie Soggetti
Physics
Journal title
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
ISSN journal
09543899 → ACNP
Volume
27
Issue
6
Year of publication
2001
Pages
1219 - 1224
Database
ISI
SICI code
0954-3899(200106)27:6<1219:LDOBM->2.0.ZU;2-O
Abstract
We give an update on the lifetime difference of B-s mesons which accounts f or recent lattice bag parameter results, and obtain (Delta Gamma/Gamma )B-s = (9.3(-4.6)(+3.4))%. We then review the current theoretical uncertainties and conclude with a pessimistic perspective on further improvements.