Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-06-23
PoS DIS2010:064,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 2 figures; to appear in the proceedings of DIS2010
Scientific paper
We investigate the theoretical description of the central exclusive production process, $h_1 + h_2 \to h_1+X+h_2$. Taking Higgs production as an example, we compute the subset of next-to-leading order corrections sensitive to the Sudakov factor appearing in the process. Our results agree with those originally presented by Khoze, Martin and Ryskin except that the scale appearing in the Sudakov factor, $\mu=0.62 \sqrt{\hat{s}}$, should be replaced with $\mu=\sqrt{\hat{s}}$, where $\sqrt{\hat{s}}$ is the invariant mass of the centrally produced system. We show that the replacement leads to approximately a factor 2 suppression in the cross-section for central system masses in the range 100--500GeV.
Coughlin Tim
Forshaw Jeffrey
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