https://doi.org/10.1140/epjc/s10052-012-2121-z
Regular Article - Theoretical Physics
New structure around 3250 MeV in the baryonic B decay and the 
molecular hadron
1
Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, Lanzhou, 730000, China
2
Nuclear Theory Group, Institute of Modern Physics of CAS, Lanzhou, 730000, China
3
School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
* e-mail: xiangliu@lzu.edu.cn
Received:
17
July
2012
Revised:
27
July
2012
Published online:
15
August
2012
In this work, we first propose the isovector 
molecular state to explain the enhancement structure around 3250 MeV (X
c
(3250)0) in the 
invariant mass spectrum newly observed by the BaBar Collaboration. Under this molecular state configuration, both the analysis of the mass spectrum and the study of its dominant decay channel can well shed light on its resonance parameters measured by BaBar. Our investigation also shows that the isovector molecular state can decay into , which is consistent with experimental observation. These studies provide direct support to the isovector molecular state assignment to X
c
(3250)0.
© Springer-Verlag / Società Italiana di Fisica, 2012
