Higgs production and decay: analytic results at next-to-leading order QCD | Zendy

Robert Harlander | Zendy; Philipp Kant | Zendy

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Higgs production and decay: analytic results at next-to-leading order QCD

Author(s) -

Robert Harlander,

Philipp Kant

Publication year - 2005

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2005/12/015

Subject(s) - higgs boson , particle physics , quantum chromodynamics , production (economics) , physics , order (exchange) , perturbative qcd , nuclear physics , economics , microeconomics , finance

The virtual two-loop corrections for Higgs production in gluon fusion arecalculated analytically in QCD for arbitrary Higgs and quark masses. Bothscalar and pseudo-scalar Higgs bosons are considered. The results are obtainedby expanding the known one-dimensional integral representation in terms ofm_H/m_q, and matching it with a suitably chosen ansatz of HarmonicPolylogarithms. This ansatz is motivated by the known analytic result for theHiggs decay rate into two photons. The method also allows us to check thisresult and to extend it to the pseudo-scalar decay rate.Comment: LaTeX, 16 pages, 5 figures (8 eps-files

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