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The European Physical Journal C

, Volume 56, Issue 4, pp 467–477 | Cite as

One-loop \(gg\to b\bar{b}\) effects in the main irreducible background to exclusive \(H\to b\bar{b}\) production at the LHC

  • A. G. Shuvaev
  • V. A. KhozeEmail author
  • A. D. Martin
  • M. G. Ryskin
Regular Article - Theoretical Physics

Abstract

We calculate the amplitude of \(gg\to b\bar{b}\) production for the colour singlet, J z =0, di-gluon state at \(\mathcal{O}(\alpha_{\mathrm{S}}^{2})\) order. We consider the cancellation and a realistic cut-off, of the infrared divergent terms. We show that the one-loop radiative QCD contributions effectively reduce the Born level result for the central exclusive \(b\bar{b}\) cross section at the LHC. This process is essentially the only irreducible QCD background to the exclusive \(H\to b\bar{b}\) signal.

Keywords

Higgs Boson Master Integral Born Term Central Exclusive Production Unintegrated Gluon 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2008

Authors and Affiliations

  • A. G. Shuvaev
    • 1
  • V. A. Khoze
    • 1
    • 2
    Email author
  • A. D. Martin
    • 2
  • M. G. Ryskin
    • 1
    • 2
  1. 1.Petersburg Nuclear Physics InstituteSt. PetersburgRussia
  2. 2.Department of Physics and Institute for Particle Physics PhenomenologyDurham UniversityDurhamUK

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