Measurement of the hadronic photon structure function at LEP 1 for 〈Q2〉 values between 9.9 and 284 GeV2

Abstract Inclusive γ ∗ γ interactions to hadronicfinal states where one scattered electron or positron is detected in the electromagnetic calorimetershave been studied in the LEP 1 data taken by ALEPHfrom 1991 to 1995. The event sample has been used to measure the hadronic structure functionof the photon F 2 γ in three bins with 〈 Q 2 〉 of 9.9, 20.7 and 284 GeV 2 .