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arXiv · 1112.1022

Exclusive open strangeness production in the $pp \to pp K^{+} K^{-}$ reaction at high energies and a measurement of scalar $χ_{c0}$ meson

Piotr Lebiedowicz
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Abstract

We discuss the results of exclusive $p p \to p p K^{+} K^{-}$ reaction at high energies which constitutes an irreducible background to three-body processes $p p \to p p M$, where $M=ϕ$, $f_{2}(1275)$, $f_{0}(1500)$, $f_{2}'(1525)$, $χ_{c0}$. We consider central diffractive contribution mediated by Pomeron and Reggeon exchanges including absorption effects due to proton-proton interaction and kaon-kaon rescattering. We make predictions for future experiments at RHIC, Tevatron and LHC. Differential distributions in invariant two-kaon mass, kaon rapidities and transverse momenta of kaons are presented. We discuss a measurement of exclusive production of scalar $χ_{c0}$ meson in the proton-(anti)proton collisions via $χ_{c0} \to K^{+}K^{-}$ decay. The corresponding amplitude for exclusive central diffractive $χ_{c0}$ meson production is calculated within the $k_{t}$-factorization approach.

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Piotr Lebiedowicz. 2011-12-05. Exclusive open strangeness production in the $pp \to pp K^{+} K^{-}$ reaction at high energies and a measurement of scalar $χ_{c0}$ meson. https://doi.org/10.5506/aphyspolbsupp.5.393

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