PT Journal
AU Molina, R
   Nagahiro, H
   Hosaka, A
   Oset, E
TI Decay of vector-vector resonances into gamma and a pseudoscalar meson
SO Physical Review D
JI Phys. Rev. D
PY 2011
BP 094030
EP 12pp
VL 83
IS 9
DI 10.1103/PhysRevD.83.094030
LA English
AB We study the decay of dynamically generated resonances from the interaction of two vectors into a gamma and a pseudoscalar meson. The dynamics requires anomalous terms involving vertices with two vectors and a pseudoscalar, which renders it special. We compare our result with data on K-2*(+) (1430) -> K+ gamma and K-2*(0) (1430) -> K-0 gamma and find a good agreement with the data for the K-2*(+) (1430) case and a width considerably smaller than the upper bound measured for the K-2*(0) (1430) meson. We also investigate the decay into pi(+) gamma of one a(2) state, tentatively associated to the a(2)(1320), obtaining qualitative agreement with data.
ER