Measurement of the low-x behaviour of the photon structure function Fγ2

Kartvelishvili, Vakhtang (2000) Measurement of the low-x behaviour of the photon structure function Fγ2. European Physical Journal C: Particles and Fields, 18 (1). pp. 15-39. ISSN 1434-6044

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Abstract

The photon structure function Fγ2(x,Q2) has been measured using data taken by the OPAL detector at e+e− centre-of-mass energies of 91 GeV, 183 GeVand 189 \GeV, in Q2 ranges of 1.5–30.0 GeV2 (LEP1), and 7.0–30.0 GeV2 (LEP2), probing lower values of x than ever before. Since previous OPAL analyses, new Monte Carlo models and new methods, such as multi-variable unfolding, have been introduced, reducing significantly the model dependent systematic errors in the measurement. The results do not conclusively prove, but are completely consistent with, the presence of a rise in Fγ2 at low-x as expected from QCD.

Item Type:
Journal Article
Journal or Publication Title:
European Physical Journal C: Particles and Fields
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2201
Subjects:
ID Code:
82877
Deposited By:
Deposited On:
15 Nov 2016 10:38
Refereed?:
Yes
Published?:
Published
Last Modified:
19 Aug 2020 03:25