TY  - JOUR
AU  - Albaladejo, M.
AU  - Guo, F. K.
AU  - Hidalgo-Duque, C.
AU  - Nieves, J.
AU  - Pavon Valderrama, M.
PY  - 2015
DA  - 2015//
TI  - Decay widths of the spin-2 partners of the X(3872)
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 547 - 26pp
VL  - 75
IS  - 11
PB  - Springer
AB  - We consider the X(3872) resonance as a J(PC) = 1(++) D (D) over bar* hadronic molecule. According to heavy quark spin symmetry, there will exist a partner with quantum numbers 2(++), X-2, which would be a D*(D) over bar* loosely bound state. The X-2 is expected to decay dominantly into D (D) over bar, D (D) over bar* and (D) over barD* in d-wave. In this work, we calculate the decay widths of the X-2 resonance into the above channels, as well as those of its bottom partner, X-b2, the mass of which comes from assuming heavy flavor symmetry for the contact terms. We find partial widths of the X-2 and X-b2 of the order of a few MeV. Finally, we also study the radiative X-2 -> D (D) over bar*gamma. and X-b2 -> (B) over bar B*gamma decays. These decay modes are more sensitive to the long-distance structure of the resonances and to the D (D) over bar* or B (B) over bar* final state interaction.
SN  - 1434-6044
UR  - http://arxiv.org/abs/1504.00861
UR  - https://doi.org/10.1140/epjc/s10052-015-3753-6
DO  - 10.1140/epjc/s10052-015-3753-6
LA  - English
N1  - WOS:000365886000001
ID  - Albaladejo_etal2015
ER  -