https://doi.org/10.1140/epjc/s10052-016-4183-9
Regular Article - Theoretical Physics
Study on decays of 
and 
into 
1
School of Science, Tianjin University, Tianjin, 300072, China
2
School of Physics, Nankai University, Tianjin, 300071, China
* e-mail: khw020056@hotmail.com
Received:
9
May
2016
Accepted:
6
June
2016
Published online:
16
June
2016
At the invariant mass spectrum of 
a new resonance has been observed, however, the previously confirmed does not show up at this channel. In this paper we assume that and are molecular states of 
and 
, respectively, then we calculate the transition rates of 
and 
in the light-front model. Our results show that the partial width of is only three times smaller than that of . seems to be a molecular state, so if is also a molecular state it should be observed in the portal 
as long as the database is sufficiently large; to the contrary if the future more precise measurements still cannot find at channel, the molecular assignment to should be ruled out.
© The Author(s), 2016
