Feng-Kun Guo, Johann Haidenbauer, Christoph Hanhart, Ulf-G. Meißner
Published 2010-05-12Version 1
The Belle Collaboration observed an enhancement called X(4630) in the Lambda_c^+ Lambda_c^- mass distribution using initial state radiation. We demonstrate that the enhancement could be consistent with the psi'f_0(980) molecular picture of the Y(4660) taking into account the Lambda_c^+ Lambda_c^- final state interaction. To test the hypothesis that the X(4630) and Y(4660) are the same molecular state, we give predictions for its spin partner, the eta_c'f_0(980) molecule. High statistic measurements of the B decays into the K Lambda_c^+ Lambda_c^- and K eta_c' pi^+ pi^- are strongly recommended.
Comments: 9 pages
Journal: Phys.Rev.D82:094008,2010
Charm nonleptonic decays and final state interactions
$a_0(980) - f_0(980)$ mixing in $χ_{c1} \to π^0 f_0(980) \to π^0 π^+ π^-$ and $χ_{c1} \to π^0 a_0(980) \to π^0 π^0 η$
Study of the K+K- Interaction at COSY-11
![QR code for arXiv:1005.2055 [hep-ph]](http://oss.arxitics.com/images/favicon.svg)