6533b871fe1ef96bd12d120d
RESEARCH PRODUCT
Analytic results for virtual QCD corrections to Higgs production and decay
Alessandro ViciniUgo AgliettiRoberto BoncianiGiuseppe Degrassisubject
CouplingQuantum chromodynamicsPhysicsCondensed Matter::Quantum GasesNuclear and High Energy PhysicsParticle physicsPhotonHigh Energy Physics::LatticeScalar (mathematics)High Energy Physics::PhenomenologyFOS: Physical sciencesHarmonic (mathematics)FermionPseudoscalarHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Higgs bosonHigh Energy Physics::Experimentdescription
We consider the production of a Higgs boson via gluon-fusion and its decay into two photons. We compute the NLO virtual QCD corrections to these processes in a general framework in which the coupling of the Higgs boson to the external particles is mediated by a colored fermion and a colored scalar. We present compact analytic results for these two-loop corrections that are expressed in terms of Harmonic Polylogarithms. The expansion of these corrections in the low and high Higgs mass regimes, as well as the expression of the new Master Integrals which appear in the reduction of the two-loop amplitudes, are also provided. For the fermionic contribution, we provide an independent check of the results already present in the literature concerning the Higgs boson and the production and decay of a pseudoscalar particle.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-11-20 |