PT Journal AU Liang, WH Molina, R Oset, E TI Radiative open charm decay of the Y(3940), Z(3930), X(4160) resonances SO European Physical Journal A JI Eur. Phys. J. A PY 2010 BP 479 EP 486 VL 44 IS 3 DI 10.1140/epja/i2010-10972-4 LA English AB We determine the radiative decay amplitudes for the decay into D* and (D) over bar gamma, or (D) over bar gamma(s)* and s. of some of the charmonium- like states classified as X, Y, Z resonances, plus some other hidden charm states which are dynamically generated from the interaction of vector mesons with charm. The mass distributions as a function of the (D) over bar gamma or (D) over bar (s)gamma. invariant mass show a peculiar behavior as a consequence of the D* (D) over bar gamma* nature of these states. The experimental search of these magnitudes can shed light on the nature of these states. ER