Dynamically generated 1+ heavy mesons
- 1. Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918(4), Beijing 100049 (China) and CCAST (World Laboratory), PO Box 8730, Beijing 100080 (China) and Graduate University of Chinese Academy of Sciences, Beijing 100049 (China)
- 2. Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 (China)
- 3. Institute of Theoretical Physics, Chinese Academy of Sciences, PO Box 2735 (China)
- 4. CCAST (World Laboratory), PO Box 8730, Beijing 100080 (China)
- 5. Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918(4), Beijing 100049 (China)
- 6. South-West University, Chongqing 400715 (China)
Description
By using a heavy chiral unitary approach, we study the S wave interactions between heavy vector meson and light pseudoscalar meson. By searching for poles of the unitary scattering amplitudes in the appropriate Riemann sheets, several 1+ heavy states are found. In particular, a D*K bound state with a mass of 2.462+/-0.010 GeV which should be associated with the recently observed Ds1(2460) state is obtained. In the same way, a B*K-bar bound state (Bs1) with mass of 5.778+/-0.007 GeV in the bottom sector is predicted. The spectra of the dynamically generated D1 and B1 states in the I=1/2 channel are also calculated. One broad state and one narrow state are found in both the charmed and bottom sectors. The coupling constants and decay widths of the predicted states are further investigated
Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2007.01.050;
- arXiv
- arXiv:hep-ph/0610008v3;
- PII
- S0370-2693(07)00172-4;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 647
- Journal Issue
- 2-3
- Journal Page Range
- p. 133-139
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39018592
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BOUND STATE; CHIRALITY; COUPLING CONSTANTS; GEV RANGE 01-10; MASS; PARTICLE DECAY; PARTICLE WIDTHS; PSEUDOSCALAR MESONS; RIEMANN SHEET; S WAVES; SCATTERING AMPLITUDES; VECTOR MESONS
- Descriptors DEC
- AMPLITUDES; BOSONS; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; HADRONS; MESONS; PARTIAL WAVES; PARTICLE PROPERTIES
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.