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Determination of the semi-leptonic branching fraction of charm hadrons produced in neutrino charged current interactions
- Source :
- Physics letters. Section B, 549, Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. B549, p. 48-57 (2002)
- Publication Year :
- 2002
-
Abstract
- During the years 1994-1997, the emulsion target of the CHORUS detector was exposed to the CERN-SPS Wide Band Neutrino Beam. The improvements of the past few years in the automatic emulsion scanning systems allowed a sample of events located in emulsion to be used for studies of charm production. Based on a sample of 56172vμu charged-current interactions analysed so far, we find a value of Bμ = 0.093 ± 0.009(stat.) ± 0.009(syst.) for the semi-leptonic branching fraction of charm hadrons. The result for events with visible energy larger than 30 GeV, Bμ = 0.102 ± 0.016(stat.) ± 0.010(syst.), can be combined with the existing measurements of the dimuon rate to yield a value of 0.219 ± 0.022 for the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element \Vcd\. © 2002 Elsevier Science B.V. All rights reserved.<br />0<br />SCOPUS: ar.j<br />info:eu-repo/semantics/published
- Subjects :
- Physics
Particle physics
Nuclear and High Energy Physics
Branching fraction
Detector
Hadron
CHORUS
Visible energy
CROSS-SECTIONS
PHYSICS
EVENTS
Nuclear physics
OPPOSITE-SIGN DIMUONS
SEARCH
Yield (chemistry)
Physique des particules élémentaires
Charm (quantum number)
Neutrino
Particle Physics - Experiment
Charged current
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Physics letters. Section B, 549, Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. B549, p. 48-57 (2002)
- Accession number :
- edsair.doi.dedup.....28a015d62f918fe291c22261172a9056