Relativistic corrections to the axial vector and vector currents in the bar{b}c meson system at order alpha_s

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

34 pages, no figure

Scientific paper

10.1007/JHEP01(2011)113

We compute the short distance coefficients for the NRQCD factorization formulas of the meson-to-vacuum matrix elements for the axial vector and vector parts of the charged weak current in the $S$-wave spin-singlet and -triplet bar{b}c mesons, respectively. The computation is carried out to order alpha_s including relativistic corrections of all orders in vec{q}^{2n}, where vec{q} is the relative momentum of the bar{b} and c in the meson rest frame. The relativistic corrections at order alpha_s are new. The results reveal that the relativistic corrections to the leptonic decay rate of the B_c meson at order alpha_s or less converge rapidly, which shows a strong contrast to the uncomfortably large corrections of order alpha_s^2|vec{q}|^0. The short distance coefficients listed in this paper can be employed to compute the resummation of relativistic corrections to the phenomenological measurables that involve B_c and B_c^* production and decay.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Relativistic corrections to the axial vector and vector currents in the bar{b}c meson system at order alpha_s 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 Relativistic corrections to the axial vector and vector currents in the bar{b}c meson system at order alpha_s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Relativistic corrections to the axial vector and vector currents in the bar{b}c meson system at order alpha_s will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-613525

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.