Anaysis of high energy K+K- photoproduction on hydrogen

Details Anaysis of high energy K+K- photoproduction on hydrogen Anaysis of high energy K+K- photoproduction on hydrogen

2004-07-21

arxiv.org/abs/hep-ph/0407237v1

Int.J.Mod.Phys. A20 (2005) 581-583

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 3 eps figures, needs ws-ijmpa.cls style, talk given by Lukasz Bibrzycki at 8th International Workshop on Meson Produc

Scientific paper

10.1142/S0217751X0502183X

We have analyzed the K+K- photoproduction on hydrogen in the effective mass region around the mass of the phi(1020) meson. The interference of the S-wave contribution with the P-wave has been studied. Both scalar resonances f0(980) and a0(980) have been taken into account. We have obtained a good description of the available experimental data, in particular the mass distributions and the moments of the kaon angular distribution. Our calculations give values of the integrated S-wave total photoproduction cross section between 4 and 7 nb for the K+K- effective mass range around the phi(1020) mass and at the laboratory photon energy near 5 GeV. These numbers favor lower experimental estimates obtained at DESY.

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