Published February 2005
| Version v1
Journal article
Observation of Ψ'→KSKL and its physical implications
Creators
- 1. Chinese Academy of Sciences, Beijing (China). Inst. High Energy Physics
Description
The transition Ψ'→KSKL has been observed for the first time using the 14 million Ψ' events collected by the Beijing Spectrometer of the Beijing Electron-Positron Collider. Based on this, the relative phase between the strong and electromagnetic amplitudes of Ψ' decays is found to be around ±90 degree. Together with improved measurement of the J/Ψ→KSKL branching fraction, Ψ'→KSKL is found to be enhanced compared with the pQCD '12%' rule between Ψ' and J/Ψ decays. This is a new challenge in the study of charmonium decay dynamics. (author)
Additional details
Publishing Information
- Journal Title
- Wuli
- Journal Volume
- 34
- Journal Issue
- 2
- Journal Page Range
- p. 112-114
- ISSN
- 0379-4148
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 36114469
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BEIJING ELECTRON-POSITRON COLLIDER; BRANCHING RATIO; CHARMONIUM; DECAY AMPLITUDES; J PSI-3097 MESONS; KAONS; MAGNETIC SPECTROMETERS; PARTICLE DECAY; QUANTUM CHROMODYNAMICS
- Descriptors DEC
- ACCELERATORS; AMPLITUDES; BOSONS; CHARMONIUM; DECAY; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; LINEAR ACCELERATORS; MEASURING INSTRUMENTS; MESONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUARKONIUM; SPECTROMETERS; STORAGE RINGS; STRANGE MESONS; STRANGE PARTICLES; TRANSITION AMPLITUDES; VECTOR MESONS
Optional Information
- Notes
- 2 figs., 14 refs.