Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-12-12
Nucl.Phys.Proc.Suppl.169:85-89,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages. Invited talk presented by M.J. at Tau06, 19-22 September 2006, Pisa, Italy
Scientific paper
10.1016/j.nuclphysbps.2007.02.05
Recent progress in the determination of |V_us| employing strange hadronic tau-decay data are reported. This includes using the recent OPAL update of the strange spectral function, as well as augmenting the dimension-two perturbative contribution with the recently calculated order alpha_s^3 term on the theory side. These updates result in |V_us| = 0.2220 +- 0.0033, with the uncertainty presently being dominated by experiment, and already being competitive with the standard extraction from K_e3 decays and other new proposals to determine |V_us|. In view of the ongoing work to analyse tau-decay data at the B-factories BaBar and Belle, as well as future results from BESIII, the error on |V_us| from tau decays is expected to be much reduced in the near future.
Gamiz Elvira
Jamin Matthias
Pich Antonio
Prades Joaquim
Schwab Felix
No associations
LandOfFree
|V_us| and m_s from hadronic tau decays does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with |V_us| and m_s from hadronic tau decays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and |V_us| and m_s from hadronic tau decays will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-117907