Isolating a light Higgs boson from the diphoton background at the CERN LHC | Zendy

Zvi Bern | Zendy; Lance J. Dixon | Zendy; Carl R. Schmidt | Zendy

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Isolating a light Higgs boson from the diphoton background at the CERN LHC

Author(s) -

Zvi Bern,

Lance J. Dixon,

Carl R. Schmidt

Publication year - 2002

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Language(s) - English

Resource type - Journals

eISSN - 1089-4918

pISSN - 0556-2821

DOI - 10.1103/physrevd.66.074018

Subject(s) - particle physics , large hadron collider , higgs boson , physics , boson , factorization , photon , gluon , quantum chromodynamics , renormalization , nuclear physics , quantum mechanics , computer science , algorithm

We compute the QCD corrections to the gluon fusion subprocess gg to gammagamma, which forms an important component of the background to the search for alight Higgs boson at the LHC. We study the dependence of the improved pp togamma gamma X background calculation on the factorization and renormalizationscales, on various choices for photon isolation cuts, and on the rapidities ofthe photons. We also investigate ways to enhance the statistical significanceof the Higgs signal in the di-photon channel.Comment: Additional reference included, 17 pages, 16 figure files, revte

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