The photon structure function F2 has been measured at average Q2 values of 73,160 and 390 ( GeV c)2. We compare the x dependence of the Q2 = 73 ( GeV c)2 data with theoretical expectations based on QCD. In addition we present results on the Q2 evolution of the structure function for the intermediate x range (0.3≤ x ≤0.8). The results are consistent with QCD.
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We thank the TRISTAN staff for the excellenot p-eration of the storager ing. In addition we acknowledge the strong support and enthusiastiac ssistance providedb y the staffs of our home institutionsW. e thank Dr. F. Kapusta for valuabled iscussionsa bout the QCD formula for F2. This work has been supported by the Japan Ministry of Education,S cience and Culture (Monbusho) and Society for the Promotion of Sciencet,h eUS Departmenotf Energya nd NationalS cienceF oundationt,h eKorean Sciencea nd EngineeringF oundationa nd Ministry of Education, and the AcademiaS inicaof the People'sR epublicof China.
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