Weak vector-boson fusion provides a unique channel to directly probe the mechanism of electroweak symmetry breaking at hadron colliders. We present a method that allows to calculate total cross sections to next-to-next-to-leading order (NNLO) in QCD for an arbitrary V *V *→X process, the so-called structure function approach. By discussing the case of Higgs production in detail, we estimate several classes of previously neglected contributions and we argue that such method is accurate at a precision level well above the typical residual scale and PDF uncertainties at NNLO. Predictions for cross sections at the Tevatron and the LHC are presented for a variety of cases: the standard model Higgs (including anomalous couplings), neutral and charged scalars in extended Higgs sectors and (fermiophobic) vector resonance production. Further results can be easily obtained through the public use of the VBF@NNLO code.

Vector boson fusion at next-to-next-to-leading order in QCD : Standard model Higgs boson and beyond / P. Bolzoni, F. Maltoni, S.O. Moch, M. Zaro. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 85:3(2012), pp. 035002.1-035002.45. [10.1103/PhysRevD.85.035002]

Vector boson fusion at next-to-next-to-leading order in QCD : Standard model Higgs boson and beyond

P. Bolzoni
;
M. Zaro
2012

Abstract

Weak vector-boson fusion provides a unique channel to directly probe the mechanism of electroweak symmetry breaking at hadron colliders. We present a method that allows to calculate total cross sections to next-to-next-to-leading order (NNLO) in QCD for an arbitrary V *V *→X process, the so-called structure function approach. By discussing the case of Higgs production in detail, we estimate several classes of previously neglected contributions and we argue that such method is accurate at a precision level well above the typical residual scale and PDF uncertainties at NNLO. Predictions for cross sections at the Tevatron and the LHC are presented for a variety of cases: the standard model Higgs (including anomalous couplings), neutral and charged scalars in extended Higgs sectors and (fermiophobic) vector resonance production. Further results can be easily obtained through the public use of the VBF@NNLO code.
Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici
2012
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/811366
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