Speaker
Nikolay Kivel
(Technical University Munich)
Description
In recent years, the BESII and BESIII collaborations have provided a lot of new and accurate data on baryon decays of S-wave charmonium states.
These data indicate about sizable effects associated with power corrections to the well known leading-order approximation.
In my talk I will discuss a description of $J/psi\to B\bar B$ decays within the effective field theory framework (NRQCD & QCD collinear factorisation) and discuss the role of power corrections provided by the valence higher twist operators, which appear in the light-cone expansion of baryon wave functions.
Primary author
Nikolay Kivel
(Technical University Munich)
