Chiral perturbation theory for B>D^{*} and B>D semileptonic transition matrix elements at zero recoil
Abstract
Heavy quark symmetry predicts the value of B>D and B>D^{*} transition matrix elements of the current c̄γ_{μ}(1  γ_{5})b, at zero recoil (where in the rest frame of the B the D or D^{*} is also at rest). We use chiral perturbation theory to compute the leading corrections to these predictions which are generated at low momentum, below the chiral symmetry breaking scale.
 Publication:

Physics Letters B
 Pub Date:
 April 1993
 DOI:
 10.1016/03702693(93)90057O
 arXiv:
 arXiv:hepph/9212315
 Bibcode:
 1993PhLB..303..135R
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 10 pages, 1 figure (not included), CALT681844, MITCTP2177