Measurement of the Q^2 evolution of the photon structure function F_2^gamma

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dc.creatorThe OPAL Collaboration
dc.creatoral, K. Ackerstaff et
dc.date1997-08-16
dc.date.accessioned2026-07-07T11:46:47Z
dc.date.available2026-07-07T11:46:47Z
dc.descriptionNew measurements are presented of the photon structure function F_2^gamma(Q) at four values of Q^2 between 9 and 59 GeV/c^2 based on data collected with the OPAL detector at centre-of-mass energies of 161-172 GeV, with a total integrated luminosity of 18.1 pb^-1. The evolution of F_2^gamma with Q^2 in bins of x is determined in the Q^2 range from 1.86 to 135 GeV/c^2 using data taken at centre-of-mass energies of 91 GeV and 161-172 GeV. F_2^gamma is observed to increase with Q^2 with a slope of 1/alpha_em dF_2^gamma/dln(Q^2) = 0.10 +0.05 -0.03 measured in the range 0.1 < x < 0.6.
dc.description22 pages, LaTeX, 4 eps figures included, accepted by Phys. Lett. B
dc.identifierhttps://arxiv.org/abs/hep-ex/9708019
dc.identifierhttp://arxiv.org/abs/hep-ex/9708019
dc.identifierPhys.Lett.B411:387-401,1997
dc.identifierdoi:10.1016/S0370-2693(97)01023-X
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202351
dc.subjectHigh Energy Physics - Experiment
dc.titleMeasurement of the Q^2 evolution of the photon structure function F_2^gamma
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