Title of article :
Measurement of charm production in two-photon processes using inclusive lepton events at TRISTAN
Author/Authors :
AMY Collaboration، نويسنده , , T. Aso، نويسنده , , H. Miyata، نويسنده , , T. Sasaki، نويسنده , , K. Miyano، نويسنده , , N. Nakajima، نويسنده , , K. Ohkubo، نويسنده , , M. Oyoshi، نويسنده , , M. Sato، نويسنده , , M. Shirai، نويسنده , , N. Takashimizu، نويسنده , , Y. Yamashita، نويسنده , , K. Abe، نويسنده , , Y. Fujii، نويسنده , , Y. Kurihara، نويسنده , , M.H. Lee، نويسنده , , F. Liu، نويسنده , , A. Maki، نويسنده , , T. Nozaki، نويسنده , , T. Omori، نويسنده , , et al.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1995
Pages :
10
From page :
249
To page :
258
Abstract :
Measurements of open charm production in photon-photon collisions made with the AMY detector at TRISTAN are reported. Charmed hadrons were identified by detecting the high momentum muons or electrons from their semileptonic decays. The data sample corresponds to an integrated luminosity of 275 pb−1 at an average center of mass energy of 58 GeV. Results are presented in the form of cross sections of inclusive leptons from charm for both muons and electrons. The measured cross section is 1.8 standard deviations higher than theoretical predictions based on the direct and photon-gluon fusion process, where the mass of charm quark is assumed to be 1.6 GeV.
Journal title :
PHYSICS LETTERS B
Serial Year :
1995
Journal title :
PHYSICS LETTERS B
Record number :
905953
Link To Document :
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