Diphoton Background to Higgs Boson Production at the LHC with Soft Gluon Effects
arXiv:hep-ph/9905551 · doi:10.1016/S0370-2693(00)00934-5
Abstract
The detection and the measurement of the production cross section of a light Higgs boson at the CERN Large Hadron Collider demand the accurate prediction of the background distributions of photon pairs. To improve this theoretical prediction, we present the soft-gluon resummed calculation of the cross section, including the exact one loop contribution. By incorporating the known fixed order results and the leading terms in the higher order corrections, the resummed cross section provides a reliable prediction for the inclusive diphoton invariant mass and transverse momentum distributions. Given our results, we propose the search for the Higgs boson in the inclusive diphoton mode with a cut on the transverse momentum of the photon pair, without the requirement of an additional tagged jet.
arXiv comment5 pages, 4 figures. A figure with discussion, and a reference added. Minor improvements of wording. Conclusion unchanged
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