Title of article
Determination of the semi-leptonic branching fraction of charm hadrons produced in neutrino charged-current interactions
Author/Authors
CHORUS Collaboration، نويسنده , , A. Kayis-Topaksu، نويسنده , , G Onengüt، نويسنده , , M de Jong، نويسنده , , O Melzer، نويسنده , , R.G.C. Oldeman، نويسنده , , E. Pesen، نويسنده , , F.R Spada، نويسنده , , R van Dantzig، نويسنده , , J.L. Visschers، نويسنده , , M Güler، نويسنده , , M. Serin-Zeyrek، نويسنده , , R Sever، نويسنده , , P Tolun، نويسنده , , M.T. Zeyrek، نويسنده , , N. Armenise، نويسنده , , M.G. Catanesi، نويسنده , , M De Serio، نويسنده , , M Ieva، نويسنده , , M.T. Muciaccia، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
10
From page
48
To page
57
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 56 172νμ 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|.
Journal title
PHYSICS LETTERS B
Serial Year
2002
Journal title
PHYSICS LETTERS B
Record number
916373
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