Published August 1, 2005
| Version v1
Journal article
Four quark interpretation of Y(4260)
- 1. I.N.F.N., Rome (Italy)
- 2. Dip. di Fisica, Universita di Bari and I.N.F.N., Bari (Italy)
- 3. I.N.F.N. Sezione di Pavia and Dipartimento di Fisica Nucleare e Teorica, via A. Bassi, 6, I-27100, Pavia (Italy)
- 4. Universita di Roma 'La Sapienza' and I.N.F.N., Rome (Italy)
Description
We propose that the Y(4260) particle recently announced by BABAR is the first orbital excitation of a diquark-antidiquark state ([cs][cs]). Using parameters recently determined to describe the X(3872) and X(3940) we show that the Y mass is compatible with the orbital excitation picture. A crucial prediction is that Y(4260) should decay predominantly in DsDs. The Y(4260) should also be seen in B 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
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.72.031502;
- arXiv
- arXiv:hep-ph/0507062v2;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 72
- Journal Issue
- 3
- Journal Page Range
- p. 031502-031502.3
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37025560
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BAG MODEL; EXCITATION; HADRONIC PARTICLE DECAY; KAONS; PARTICLE IDENTIFICATION; QUARKS; RESONANCE PARTICLES; REST MASS; WEAK HADRONIC DECAY
- Descriptors DEC
- BOSONS; COMPOSITE MODELS; DECAY; ELEMENTARY PARTICLES; ENERGY-LEVEL TRANSITIONS; EXTENDED PARTICLE MODEL; FERMIONS; HADRONS; MASS; MATHEMATICAL MODELS; MESONS; PARTICLE DECAY; PARTICLE MODELS; PSEUDOSCALAR MESONS; QUARK MODEL; STRANGE MESONS; STRANGE PARTICLES; WEAK PARTICLE DECAY
Optional Information
- Notes
- (c) 2005 The American Physical Society