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Central exclusive meson pair production in the perturbative regime

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arxiv 1105.4133 v1 pith:HUIMBJHR submitted 2011-05-20 hep-ph

L.A. Harland-Lang , V.A. Khoze , M.G. Ryskin , W.J. Stirling This is my paper · ORCID
classification hep-ph
keywords mesonmmbarexclusiveperturbativeproductioncentralformalismhard
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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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