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Central exclusive production in QCD

Coughlin, TD; Forshaw, JR; (2010) Central exclusive production in QCD. Journal Of High Energy Physics , 2010 (1) , Article 121. 10.1007/JHEP01(2010)121. Green open access

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Abstract

We investigate the theoretical description of the central exclusive production process, h 1 + h 2 → h 1 + X + h 2. Taking Higgs production as an example, we sum logarithmically enhanced corrections appearing in the perturbation series to all orders in the strong coupling. Our results agree with those originally presented by Khoze, Martin and Ryskin except that the scale appearing in the Sudakov factor, μ=0.62s^√ , should be replaced with μ=s^√ , where s^√ is the invariant mass of the centrally produced system. We confirm this result using a fixed-order calculation and show that the replacement leads to approximately a factor 2 suppression in the cross-section for central system masses in the range 100–500 GeV.

Type: Article
Title: Central exclusive production in QCD
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/JHEP01(2010)121
Publisher version: http://dx.doi.org/10.1007/JHEP01(2010)121
Language: English
Additional information: This article is licensed under and licensed under CC BY 4.0 [http://creativecommons.org/licenses/by/4.0/], which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords: QCD Phenomenology
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1381052
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