Pair production of neutral Higgs bosons at the CERN Large Hadron Collider

Abstract

We study the hadroproduction of two neutral Higgs bosons in the minimal supersymmetric extension of the standard model, which provides a handle on the trilinear Higgs couplings. We include the contributions from quark-antiquark annihilation at the tree level and those from gluon-gluon fusion, which proceeds via quark and squark loops. We list compact results for the tree-level partonic cross sections and the squark loop amplitudes, and we confirm previous results for the quark loop amplitudes. We quantitatively analyze the hadronic cross sections at the CERN Large Hadron Collider assuming a favorable supergravity-inspired scenario.

22 pages (Latex), 16 figures (Postscript). Discussion of theoretical uncertainties and background processes added. Accepted for publication in Phys. Rev. D

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