https://doi.org/10.1140/epjc/s10052-015-3264-5
Regular Article - Theoretical Physics
Study on radiative decays of 
and 
into 
by means of LFQM
1
School of Science, Tianjin University, Tianjin, 300072, China
2
School of Physics, Nankai University, Tianjin, 300071, China
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
9
November
2014
Accepted:
30
December
2014
Published online:
24
January
2015
Abstract
The observed resonance peak around 2.86 GeV has been carefully reexamined by the LHCb Collaboration and it is found that under the peak there reside two states, 
and 
, which are considered as 
and 
with slightly different masses and total widths. Thus, the earlier assumption that the resonance was a 
state should be reconsidered. We suggest to measure the partial widths of radiative decays of , , and to confirm their quantum numbers. We would consider as 
or a pure 
state, or their mixture and, respectively, calculate the corresponding branching ratios as well as those of and . A future precise measurement would provide us information to help identifying the structures of those resonances.
© SIF and Springer-Verlag Berlin Heidelberg, 2015
