https://doi.org/10.1140/epjc/s10052-008-0668-5
Regular Article - Theoretical Physics
QCD sum rules analysis of the rare
decays
1
Department of Physics, Middle East Technical University, 06531, Ankara, Turkey
2
Physics Department, Shiraz University, Shiraz, 71454, Iran
3
Department of Electrical and Electronics, Cyprus International University, Haspolat-Lefkosa, north Cyprus, via Mersin 10, Turkey
* e-mail: e146342@metu.edu.tr
Received:
19
May
2008
Published online:
5
August
2008
Taking into account the gluon correction contributions to the correlation function, the form factors relevant to the rare
decays are calculated in the framework of the three-point QCD sum rules, where X stands for axial vector particle, AV(D
s1), and vector particles, V(D
*,D
s
*
). The total decay width as well as the branching ratio of these decays are evaluated using the q
2 dependent expressions of the form factors. A comparison of our results with the predictions of the relativistic constituent quark model is presented.
PACS: 11.55.Hx – / 13.20.He –
© Springer-Verlag , 2008