Four quark interpretation of
- 11 August 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 72 (3) , 031502
- https://doi.org/10.1103/physrevd.72.031502
Abstract
We propose that the particle recently announced by BABAR is the first orbital excitation of a diquark-antidiquark state . Using parameters recently determined to describe the and we show that the mass is compatible with the orbital excitation picture. A crucial prediction is that should decay predominantly in . The should also be seen in nonleptonic decays in association with one kaon. We consider the full nonet of related four-quark states and their predicted properties. Finally, we comment on a possible narrow resonance in the same channel.
Keywords
All Related Versions
This publication has 5 references indexed in Scilit:
- ExoticaPhysics Reports, 2005
- Diquark-antidiquark states with hidden or open charm and the nature ofPhysical Review D, 2005
- New Look at Scalar MesonsPhysical Review Letters, 2004
- Review of Particle PhysicsPhysics Letters B, 2004
- Inequalities on heavy quark-antiquark systemsNuclear Physics B, 1980