Published October 1, 2007
| Version v1
Journal article
Search for prompt production of χc and X(3872) in e+e- annihilations
Creators
- 1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
- 2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
- 3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
- 4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
- 5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)
Description
We have searched for prompt production of χc1, χc2 and X(3872) in continuum e+e- annihilations using a 386 fb-1 data sample collected around √(s)=10.6 GeV with the BABAR detector using the γJ/ψ decay mode. After accounting for the feed-down from ψ(2S)→γχc1,2, no significant signal for prompt χc1,2 production is observed. We present improved upper limits at 90% confidence level on the production cross sections of 77 fb for χc1 and 79 fb for χc2, for events where the χc momentum exceeds 2.0 GeV and there are at least three additional charged tracks. These limits are consistent with NRQCD predictions. We also set an upper limit on the prompt production of X(3872) through the decay X(3872)→γJ/ψ
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.76.071102;
- arXiv
- arXiv:0707.1633v1;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 76
- Journal Issue
- 7
- Journal Page Range
- p. 071102-071102.8
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39052505
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANNIHILATION; CROSS SECTIONS; ELECTRON-POSITRON INTERACTIONS; ELECTRONS; GEV RANGE; HADRONIC PARTICLE DECAY; INCLUSIVE INTERACTIONS; J PSI-3097 MESONS; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PARTICLE PRODUCTION; PEP STORAGE RINGS; PHOTONS; POSITRONS; PSI-3770 MESONS; QUANTUM CHROMODYNAMICS
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BOSONS; CHARMONIUM; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; HADRONS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MASSLESS PARTICLES; MATTER; MEASURING INSTRUMENTS; MESONS; PARTICLE DECAY; PARTICLE INTERACTIONS; QUANTUM FIELD THEORY; QUARKONIUM; SPECTROMETERS; STORAGE RINGS; VECTOR MESONS
Optional Information
- Notes
- (c) 2007 The American Physical Society
- Collaborations
- BABAR Collaboration