Advertisement

Measurement of the cross-section for the process \(\gamma\gamma\to p\bar{p}\) at \(\sqrt{s_{ee}} = 183-189 \)GeV at LEP

  • The OPAL Collaboration
  • G. Abbiendi et al.
Experimental Physics

Abstract.

The exclusive production of proton-antiproton pairs in the collisions of two quasi-real photons has been studied using data taken at \(\sqrt{s_{ee}} = 183 \) GeV and 189 GeV with the OPAL detector at LEP. Results are presented for \(p\bar{p}\) invariant masses, W, in the range 2.15<W<3.95 GeV. The cross-section measurements are compared with previous data and with recent analytic calculations based on t he quark-diquark model.

Keywords

Analytic Calculation Invariant Mass Opal Detector Exclusive Production 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg / Società Italiana di Fisica 2003

Authors and Affiliations

  • The OPAL Collaboration
  • G. Abbiendi et al.
    • 1
  1. 1.Dipartimento di Fisica dell' Università di Bologna and INFN, 40126 Bologna, Italy IT

Personalised recommendations