Compton scattering of quasi-real virtual photons at LEP

Achard, P. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (2005) Compton scattering of quasi-real virtual photons at LEP Physics Letters B, 616 (3-4). pp. 145-158. ISSN 0370-2693

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Compton scattering of quasi-real virtual photons, γe±→γe±, is studied with 0.6 fb-1 of data collected by the L3 detector at the LEP e+e- collider at centre-of-mass energies √s=189-209 GeV. About 4500 events produced by the interaction of virtual photons emitted by e± of one beam with e∓ of the opposite beam are collected for effective centre-of-mass energies of the photon-electron and photon-positron systems in the range from √s'= 35 GeV up to √s'=175 GeV, the highest energy at which Compton scattering was ever probed. The cross sections of the γe±→γe± process as a function of √s' and of the rest-frame scattering angle are measured, combined with previous L3 measurements down to √s'≃20 GeV, and found to agree with the QED expectations.

Item Type:Article
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ID Code:84040
Deposited On:24 Feb 2012 05:54
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