PT Journal
AU Bruschini, R
   Gonzalez, P
TI Radiative decays in bottomonium beyond the long wavelength approximation
SO Physical Review D
JI Phys. Rev. D
PY 2019
BP 074001
EP 13pp
VL 100
IS 7
DI 10.1103/PhysRevD.100.074001
LA English
AB We revisit the nonrelativistic quark model description of electromagnetic radiative decays in bottomonium. We show that even for the simplest spectroscopic quark model the calculated widths can be in good agreement with data once the experimental masses of bottomonium states and the photon energy are properly implemented in the calculation. For transitions involving the lower lying spectral states this implementation can be easily done via the long wavelength approximation. For transitions where this approximation does not apply we develop a new method of implementing the experimental energy dependencies.
ER