| Title: | EXCLUSIVE PRODUCTION OF CHARGED KAON AND PION PAIRS IN PHOTON-PHOTON COLLISIONS AT LEP2 |
| DOI No: | 10.1142/9789812777157_0056 |
| Source: | PHOTON 2001 (pp 279-282)
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| Author(s): | K. GRZELAK
Warsaw University, ul. Hoza 69, 00-681 Warsaw, Poland
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| Abstract: | Two measurements of the cross-sections for the two-photon production of charged kaon and pion pairs at LEP2, based on data taken by ALEPH and DELPHI experiments are presented. The cross-sections have been measured for the invariant masses of the two-photon system above 2 GeV and for meson scattering polar angles, θ*, in the photon-photon centre-of-mass system in the region │cos θ*│ < 0.6. The results are compared to the QCD-based prediction by Brodsky and Lepage. |
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