PT Journal
AU Bruschini, R
   Gonzalez, P
TI Radiative decays in charmonium beyond the p/m approximation
SO Physical Review D
JI Phys. Rev. D
PY 2020
BP 014027
EP 16pp
VL 101
IS 1
DI 10.1103/PhysRevD.101.014027
LA English
AB We analyze the theoretical description of radiative decays in charmonium. We use an elementary emission decay model to build the most general electromagnetic transition operator. We show that accurate results for the widths can be obtained from a simple quark potential model reasonably fitting the spectroscopy if the complete form of the operator is used instead of its standard p/m approximation and the experimental masses are properly implemented in the calculation.
ER