Light-cone sum rules for the D(s)→η(')lνl form factor
Abstract
We present an improved light-cone sum rule analysis of the decay form factors of D and Ds into η and η' and argue that these decays offer a very promising possibility to determine the leading Fock-state gluonic contribution of the η' at future experimental facilities such as FAIR or Super-KEKB. We also give the corresponding branching ratios for B decays.
- Publication:
-
Physical Review D
- Pub Date:
- August 2013
- DOI:
- arXiv:
- arXiv:1307.2797
- Bibcode:
- 2013PhRvD..88c4023O
- Keywords:
-
- 14.40.Lb;
- 11.30.Hv;
- 12.38.Bx;
- Charmed mesons;
- Flavor symmetries;
- Perturbative calculations;
- High Energy Physics - Phenomenology
- E-Print:
- 10 pages, 5 figures, Minor wording changes and some references added, results unchanged