Total cross section in γγ collisions at LEP

Acciarri, M. ; Achard, P. ; Adriani, O. ; Gurtu, A. ; et., al (2001) Total cross section in γγ collisions at LEP Physics Letters B, 519 (1-2). pp. 33-45. ISSN 0370-2693

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The reaction e+e → e+e hadrons for quasi-real photons is studied using data from √s = 183 GeV up to 202 GeV. Results on the total cross sections σ(e+e hadrons) and σ(γγ−hadrons) are given for the two-photon centre-of-mass energies 5 GeV≰Wγγ≰185 GeV. The total cross section of two real photons is described by a Regge parametrisation. We observe a steeper rise with the two-photon centre-of-mass energy as compared to the hadron-hadron and the photon-proton cross sections. The data are also compared to the expectations of different theoretical models.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:83429
Deposited On:21 Feb 2012 07:35
Last Modified:21 Feb 2012 07:35

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