Heavy Quark Symmetry Violation in Semileptonic Decays of D Mesons

Details Heavy Quark Symmetry Violation in Semileptonic Decays of D Mesons Heavy Quark Symmetry Violation in Semileptonic Decays of D Mesons

1992-09-22

arxiv.org/abs/hep-ph/9209263v1

Phys.Rev. D47 (1993) 1951-1963

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages (LaTeX) + 7 pages of Postscript figures (included at end), EFI-92-36

Scientific paper

10.1103/PhysRevD.47.1951

The decays of $D$ mesons to $K l \nu$ and $K^* l \nu$ final states exhibit significant deviations from the predictions of heavy-quark symmetry, as one might expect since the strange quark's mass is of the same order as the QCD scale. Nonetheless, in order to understand where the most significant effects might lie for heavier systems (such as $B \to D l\nu$ and $B \to D^* l\nu$), the pattern of these deviations is analyzed from the standpoint of perturbative QCD and ${\cal O}(1/m_s)$ corrections. Two main effects are noted. First, the perturbative QCD corrections lead to an overall decrease of predicted rates, which can be understood in terms of production of excited kaonic states. Second, ${\cal O}(1/m_s)$ effects tend to cancel the perturbative QCD corrections in the case of $Kl\nu$ decay, while they have minimal effect in $K^*l\nu$ decay.

Affiliated with

Also associated with

No associations

Rating

Heavy Quark Symmetry Violation in Semileptonic Decays of D Mesons 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 Heavy Quark Symmetry Violation in Semileptonic Decays of D Mesons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heavy Quark Symmetry Violation in Semileptonic Decays of D Mesons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-37755