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
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