Abstract
Inspired by the recently observed states at LHCb, we decode their properties by performing an analysis of their mass spectrum and decay behavior. Our studies show that the five narrow states, i.e., , , , , and , could be grouped into the states with negative parity. Among them, the and states could be the candidates, while and are suggested as the states. could be regarded as a state. Since the spin-parity, electromagnetic transitions, and possible hadronic decay channels have not been measured yet, other explanations are also probable for these narrow states. Additionally, we discuss the possibility of the broad structure as a state with or . In our scheme, cannot be a candidate.
- Received 9 April 2017
DOI:https://doi.org/10.1103/PhysRevD.96.094015
© 2017 American Physical Society