Alpha_s Determination from Tau Decays: Theoretical Status

Details Alpha_s Determination from Tau Decays: Theoretical Status Alpha_s Determination from Tau Decays: Theoretical Status

2010-01-03

arxiv.org/abs/1001.0389v1

Acta Phys.Polon.Supp.3:165-170,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited talk at the Flavianet topical workshop on "Low energy constraints on extensions of the Standard Model", Kazimierz, Pol

Scientific paper

The total tau hadronic width can be accurately calculated using analyticity and the operator product expansion. The result turns out to be very sensitive to the value of alpha_s(m_tau^2), providing a precise determination of the strong coupling constant. The theoretical description of this observable is updated, including the recently computed O(alpha_s^4) contributions. The experimental determination of alpha_s(m_tau^2) and its actual uncertainties are discussed.

Affiliated with

Also associated with

No associations

Rating

Alpha_s Determination from Tau Decays: Theoretical Status 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 Alpha_s Determination from Tau Decays: Theoretical Status, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alpha_s Determination from Tau Decays: Theoretical Status will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-222931