Measurement and QCD analysis of the photon structure function F2(x, Q2)

Details Measurement and QCD analysis of the photon structure function F2(x, Q2) Measurement and QCD analysis of the photon structure function F2(x, Q2)

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987nuphb.281..365b&link_type=abstract

Nuclear Physics B, Volume 281, Issue 3-4, p. 365-380.

Physics

Nuclear Physics

61

Scientific paper

We present a measurement of the hadronic structure function F2γ(x, Q2) of the photon in the Q2 range from 10 to 100 GeV2. Data were taken with the PLUTO detector at the e+e- storage ring PETRA. This measurement and previous PLUTO measurements in the Q2 range of 1.5 to 16 GeV2 are compared with higher order QCD calculations. The structure function is consistent with the predicted log Q2 behaviour when charm contributions are subtracted. The x dependence can be well described for 0.1 < x < 0.9 by the regularization scheme of Antoniadis and Grunberg. Within their scheme the data yield a value of ΛMS = 183 + 65/ -40(stat.) + 46/ -36(sys.) MeV for the QCD scale parameter.

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