A novel route to V_us

Details A novel route to V_us A novel route to V_us

2003-09-12

arxiv.org/abs/hep-ph/0309147v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure, contribution to CKM03, Durham, April 2003

Scientific paper

Already in the past, hadronic tau decays have served as an interesting source to obtain information on the parameters of the Standard Model, like the strong coupling alpha_s or the strange quark mass. Below it will be shown that the approach to obtain the strange mass from the hadronic tau-decay width can be turned into a determination of the CKM matrix element V_us, once the strange mass is used as an input from other sources. At present, we obtain V_us = 0.2179 +- 0.0045, where the error is completely dominated by the experimental uncertainty, and can be improved through an improved measurement of the hadronic tau-decay rate into strange particles R_tau,S.

Affiliated with

Also associated with

No associations

Rating

A novel route to V_us 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 A novel route to V_us, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A novel route to V_us will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-230537