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arXiv · 1105.4133

Central exclusive meson pair production in the perturbative regime

L. A. Harland-Lang·V. A. Khoze·M. G. Ryskin·W. J. Stirling
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Abstract

We present a study of the central exclusive production (CEP) of meson pairs, MMbar, at sufficiently high invariant mass that a perturbative QCD formalism is applicable. Within this framework, MMbar production proceeds via the gg --> MMbar hard scattering sub-process, which can be calculated within the hard exclusive formalism. We present explicit calculations for the gg --> MMbar helicity amplitudes for different meson states and, using these, show results for meson pair CEP in the perturbative regime.

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L. A. Harland-Lang, V. A. Khoze, M. G. Ryskin, W. J. Stirling. 2011-05-20. Central exclusive meson pair production in the perturbative regime. https://arxiv.org/abs/1105.4133

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