Gluon-Gluon Antenna Functions from Higgs Boson Decay

Details Gluon-Gluon Antenna Functions from Higgs Boson Decay Gluon-Gluon Antenna Functions from Higgs Boson Decay

2005-02-11

arxiv.org/abs/hep-ph/0502110v1

Phys.Lett.B612:49-60,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages

Scientific paper

10.1016/j.physletb.2005.03.003

Antenna functions describe the infrared singular behaviour of colour-ordered QCD matrix elements due to the emission of unresolved partons inside an antenna formed by two hard partons. In this paper, we show that antenna functions for hard gluon-gluon pairs can be systematically derived from the effective Lagrangian describing Higgs boson decay into gluons, and compute the the infrared structure of the colour-ordered Higgs boson decay matrix elements at NLO and NNLO.

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