Published March 1996
| Version v1
Journal article
Measurement of Ds decay constant
- 1. Academia Sinica, Beijing, BJ (China). Inst. of High Energy Physics
Description
Using the method of tagging a μ first, then checking the recoil side to see if it is a Ds meson, two Ds→μν and three Ds→τν→μννν candidate events are found from a data sample corresponding to 22.3 pb-1, which has been collected at BES at Ecm = 4.03 GeV. The absolute branching ratio of Ds leptonic decay are determined to be Br(Ds→μν) = (0.72+0.70-0.44)% and Br(Ds→τν) = (14+11-8)%. And the Ds decay constant which is independent of any model is given as fDs = (355+96+28-90-28) MeV
Additional details
Publishing Information
- Journal Title
- High Energy Physics and Nuclear Physics
- Journal Volume
- 20
- Journal Issue
- 3
- Journal Page Range
- p. 193-203.
- ISSN
- 0254-3052
- CODEN
- KNWLD9
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 27052515
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BRANCHING RATIO; CHINA; D MESONS; EXPERIMENTAL DATA; LEPTONIC DECAY; MAGNETIC SPECTROMETERS
- Descriptors DEC
- ASIA; BASIC INTERACTIONS; BOSONS; CHARM PARTICLES; CHARMED MESONS; DATA; DECAY; ELEMENTARY PARTICLES; HADRONS; INFORMATION; INTERACTIONS; MEASURING INSTRUMENTS; MESONS; NUMERICAL DATA; PARTICLE DECAY; PSEUDOSCALAR MESONS; SPECTROMETERS; WEAK INTERACTIONS; WEAK PARTICLE DECAY
Optional Information
- Collaborations
- BES Collaboration.