Results of the Mixed Tau-Electroproduction Sum Rule For V_us

Details Results of the Mixed Tau-Electroproduction Sum Rule For V_us Results of the Mixed Tau-Electroproduction Sum Rule For V_us

2009-06-26

arxiv.org/abs/0906.5008v1

AIP Conf.Proc.1182:398-401,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, prepared for the proceedings of CIPANP09, San Diego, USA, March 26-31, 2009

Scientific paper

10.1063/1.3293829

A sum rule for determining |V_us| from a combination of hadronic tau decay and electroproduction data is discussed. Indications of problems with analogous, purely tau-decay-based analyses, most likely associated with slow convergence of the relevant D=2 OPE series, are outlined, and advantages of the mixed sum rule approach identified. With current data, one obtains |V_us|= 0.2208 (39)_exp (3)_th, a determination amenable to significant near-term reduction in experimental error, and with the smallest theoretical error of all current |V_us| determinations.

Affiliated with

Also associated with

No associations

Rating

Results of the Mixed Tau-Electroproduction Sum Rule For 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 Results of the Mixed Tau-Electroproduction Sum Rule For V_us, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Results of the Mixed Tau-Electroproduction Sum Rule For V_us will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-305931