A high - Q 2 measurement of the photon structure function F γ 2 at LEP 2
نویسنده
چکیده
The photon structure function F γ 2 (x,Q ) has been measured at 〈Q〉 of 706 GeV using a sample of two-photon events with a scattered electron observed in the OPAL electromagnetic endcap calorimeter. The data were taken during the years 1997-1999, when LEP operated at ee centre-of-mass energies ranging from 183 to 202 GeV, and correspond to an integrated luminosity of 424 pb. This analysis represents the highest 〈Q〉 measurement of F γ 2 made to date.
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