Published February 18, 2011
| Version v1
Journal article
Confirmation of the X(1835) and Observation of the Resonances X(2120) and X(2370) in J/ψ→γπ+π-η'
Creators
- 1. Institute of High Energy Physics, Beijing 100049 (China)
Description
With a sample of (225.2±2.8)x106 J/ψ events registered in the BESIII detector, J/ψ→γπ+π-η' is studied using two η' decay modes: η'→π+π-η and η'→γρ0. The X(1835), which was previously observed by BESII, is confirmed with a statistical significance that is larger than 20σ. In addition, in the π+π-η' invariant-mass spectrum, the X(2120) and the X(2370), are observed with statistical significances larger than 7.2σ and 6.4σ, respectively. For the X(1835), the angular distribution of the radiative photon is consistent with expectations for a pseudoscalar.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.106.072002;
- arXiv
- arXiv:1012.3510v1;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 106
- Journal Issue
- 7
- Journal Page Range
- p. 072002-072002.5
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- Syrian Arab Republic
- INIS RN
- 43011827
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANGULAR DISTRIBUTION; DECAY; J PSI-3097 MESONS; MASS SPECTRA; PHOTONS; PIONS MINUS; PIONS PLUS; RESONANCE
- Descriptors DEC
- BOSONS; CHARMONIUM; DISTRIBUTION; ELEMENTARY PARTICLES; HADRONS; MASSLESS PARTICLES; MESONS; PIONS; PSEUDOSCALAR MESONS; QUARKONIUM; SPECTRA; VECTOR MESONS
Optional Information
- Notes
- (c) 2011 American Institute of Physics
- Collaborations
- BESIII Collaboration