Semileptonic b --> u decays: lepton invariant mass spectrum

Details Semileptonic b --> u decays: lepton invariant mass spectrum Semileptonic b --> u decays: lepton invariant mass spectrum

2001-12-19

arxiv.org/abs/hep-ph/0112264v1

Phys.Rev.Lett.88:131801,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, revtex

Scientific paper

10.1103/PhysRevLett.88.131801

We compute O(alpha_s^2) QCD corrections to the lepton invariant mass spectrum in the decay b --> u l nu_l, relevant for the determination of the CKM matrix element |V_{ub}|. Our method can also be used to evaluate moments of the lepton energy distribution with an O(alpha_s^2) accuracy. The abelian part of our result gives the neutrino invariant mass spectrum in the muon decay and, upon integration, the O(alpha^2) correction to the muon lifetime.

Affiliated with

Also associated with

No associations

Rating

Semileptonic b --> u decays: lepton invariant mass spectrum 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 Semileptonic b --> u decays: lepton invariant mass spectrum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semileptonic b --> u decays: lepton invariant mass spectrum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-314578