Published in

Photon 2001

DOI: 10.1142/9789812777157_0046

Elsevier, Physics Letters B, 1-2(536), p. 24-33, 2002

DOI: 10.1016/s0370-2693(02)01781-1

Links

Tools

Export citation

Search in Google Scholar

Λ and Σ0 pair production in two-photon collisions at LEP

Journal article published in 2002 by P. Achard, J. A. van Dalen, R. van Gulik, Y.-U. Galaktionov, Iouri Galaktionov, B. de la Cruz, R. de Asmundis, D. della Volpe, A. Eline, H. El Mamouni, D. Kafer, A. Engler, F. J. Eppling, A. Ewers, P. Extermann and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Green circle
Postprint: archiving allowed
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

Strange baryon pair production in two-photon collisions is studied with the L3 detector at LEP. The analysis is based on data collected at e+e- centre-of-mass energies from 91 GeV to 208 GeV, corresponding to an integrated luminosity of 844 pb-1. The processes gamma gamma -> Lambda Anti-lambda and gamma gamma -> Sigma0 Anti-sigma0 are identified. Their cross sections as a function of the gamma gamma centre-of-mass energy are measured and results are compared to predictions of the quark-diquark model.