https://doi.org/10.1140/epjc/s10052-015-3725-x
Regular Article - Theoretical Physics
Phenomenological analysis of the decay 
1
Dipartimento di Fisica, Via Dodecaneso 33, 16146, Genoa, Italy
2
INFN-Sez. di Genova, Genoa, Italy
3
Laboratoire de Physique Corpusculaire de Clermont-Ferrand, IN2P3/CNRS Université Blaise Pascal, 63177, Aubière Cedex, France
* e-mail: disalvo@ge.infn.it
** e-mail: Elvio.Disalvo@ge.infn.it
Received:
31
May
2015
Accepted:
8
October
2015
Published online:
20
November
2015
We propose a parametrization for interpreting some of the presently available data of the 
decay, in particular those by the LHCb and Belle Collaborations. The model is inspired by the well-known current and transition contributions, usually assumed in this kind of decay. However, in the light of considerations as regards the dominant diagrams and final state interactions, we modify some parameters of the model, determining them by means of a best fit to the data. We show the results, which we discuss in some detail. Moreover, we give some predictions on other observables relative to the decays.
© SIF and Springer-Verlag Berlin Heidelberg, 2015
