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Two-photon cross-sections from the saturation model
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, High Energy Physics.
2002 (English)In: Acta Physica Polonica B, ISSN 0587-4254, E-ISSN 1509-5770, Vol. B33, no 6, 1559- p.Article in journal, Meeting abstract (Refereed) Published
Abstract [en]

A saturation model for the total \gamma \gamma and \gamma* \gamma* cross-sections and for the real photon structure function F2\gamma (x,Q2) is described. The model is based on a QCD dipole picture of high energy scattering. The two-dipole cross-section is assumed to satisfy the saturation property with the saturation radius taken from the GBW analysis of the \gamma*p interaction at HERA. The model is combined with the QPM and non-pomeron reggeon contributions and it gives a very good description of the data on the \gamma \gamma total cross-section, on the photon structure function F2\gamma (x,Q2) at low x and on the \gamma* \gamma* cross-section. Production of heavy quarks in \gamma \gamma collisions is also studied.

Place, publisher, year, edition, pages
Jagellonian University, Cracow , 2002. Vol. B33, no 6, 1559- p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-45275OAI: oai:DiVA.org:uu-45275DiVA: diva2:73182
Conference
The Cracow Epiphany Conference on Quarks and Gluons in Extreme Conditions, 3-6 January 2002, Cracow, Poland
Available from: 2008-10-17 Created: 2008-10-17 Last updated: 2017-12-05Bibliographically approved

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http://th-www.if.uj.edu.pl/acta/vol33/abs/v33p1559.htm

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Timneanu, Nicusor

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