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In this talk I present the total cross sections, accurate at the NLO in QCD, for rare Standard-Model hadroproduction processes involving multi-Higgs-boson, multi-electroweak-boson and multi-top-quark final states. The comparison between…

High Energy Physics - Phenomenology · Physics 2014-07-08 Paolo Torrielli

Theoretical predictions with next-to-next-to-leading order (NNLO) QCD accuracy combined with the next-to-leading order (NLO) electroweak (EW) corrections are presented for differential observables of the double-Higgs production process via…

High Energy Physics - Phenomenology · Physics 2022-09-16 Frédéric A. Dreyer , Alexander Karlberg , Jean-Nicolas Lang , Mathieu Pellen

Models of electroweak symmetry breaking with more than a single doublet of Higgs scalars contain a neutral pseudoscalar boson. The production of such a pseudoscalar in hadron collisions proceeds primarily via gluon fusion through a…

High Energy Physics - Phenomenology · Physics 2011-01-13 Russel P. Kauffman , Wendy Schaffer

We compute the complete next-to-leading order (NLO) SUSY-QCD corrections for the associated production of a pseudoscalar Higgs boson with a bottom quark via bottom-gluon fusion at the CERN Large Hadron Collider (LHC) and the Fermilab…

High Energy Physics - Phenomenology · Physics 2009-11-10 Hou Hong-Sheng , Ma Wen-Gan , Zhang Ren-You , Sun Yan-Bin , Wu Peng

The detailed study of the Higgs boson is one of the main tasks of contemporary particle physics. Gluon fusion, the main production channel of Higgs bosons at the LHC, has been successfully modelled in QCD up to $\text{N}^3\text{LO}$. To…

High Energy Physics - Phenomenology · Physics 2022-07-25 Marco Bonetti

We discuss nonfactorizable QCD corrections to Higgs boson production in vector boson fusion at the Large Hadron Collider. We point out that these corrections can be computed in the eikonal approximation retaining all the terms that are not…

High Energy Physics - Phenomenology · Physics 2019-09-25 Tao Liu , Kirill Melnikov , Alexander A. Penin

The first four terms of an expansion in mH^2/mt^2 of the total inclusive cross section for Higgs production in gluon fusion are evaluated through next-to-next-to-leading order QCD. A reliable and precise approximation of the full top mass…

High Energy Physics - Phenomenology · Physics 2014-11-20 Robert V. Harlander , Kemal J. Ozeren

The single diffractive production of the standard model Higgs boson is computed using the diffractive factorization formalism, taking into account a parametrization for the Pomeron structure function provided by the H1 Collaboration. We…

High Energy Physics - Phenomenology · Physics 2011-04-22 M. B. Gay Ducati , M. M. Machado , G. G. Silveira

The observation of double and triple scalar boson production at hadron colliders could provide key information on the Higgs self couplings and the potential. As for single Higgs production the largest rates for multiple Higgs production…

High Energy Physics - Phenomenology · Physics 2015-06-22 F. Maltoni , E. Vryonidou , M. Zaro

We report on the calculation of the cross section for Higgs boson production in association with three jets via gluon fusion, at next-to-leading-order (NLO) accuracy in QCD, in the infinite top-mass approximation. After including the…

High Energy Physics - Phenomenology · Physics 2013-10-02 G. Cullen , H. van Deurzen , N. Greiner , G. Luisoni , P. Mastrolia , E. Mirabella , G. Ossola , T. Peraro , F. Tramontano

The measurement of the Higgs pair production via vector boson fusion can be used to test the trilinear Higgs self-coupling and the $VVHH$ $(V=Z,W)$ quartic gauge interactions. In this paper we present the calculations of the…

High Energy Physics - Phenomenology · Physics 2014-04-02 Ling Liu-Sheng , Zhang Ren-You , Ma Wen-Gan , Guo Lei , Li Wei-Hua , Li Xiao-Zhou

The dominant production process for heavy charged Higgs bosons at the LHC is the associated production with heavy quarks. We have calculated the next-to-leading-order supersymmetric QCD corrections to charged-Higgs production through the…

High Energy Physics - Phenomenology · Physics 2011-03-21 Stefan Dittmaier , Michael Krämer , Michael Spira , Manuel Walser

The single-logarithmic enhancement of the physical kernel for Higgs production by gluon-gluon fusion in the heavy top-quark limit is employed to derive the leading so far unknown contributions, ln^{5,4,3}(1-z), to the N^3LO coefficient…

High Energy Physics - Phenomenology · Physics 2015-06-22 D. de Florian , J. Mazzitelli , S. Moch , A. Vogt

The fully differential computation of the hadronic production cross section of a Higgs boson via bottom quarks is presented at NNLO in QCD. Several differential distributions with their corresponding scale uncertainties are presented for…

High Energy Physics - Phenomenology · Physics 2012-07-25 Stephan Buehler , Franz Herzog , Achilleas Lazopoulos , Romain Mueller

We construct an approximate expression for the cross section for Higgs production in gluon fusion at next-to-next-to-next-to-leading order (N$^3$LO) in $\alpha_s$ with finite top mass. We argue that an accurate approximation can be…

High Energy Physics - Phenomenology · Physics 2014-07-04 Richard D. Ball , Marco Bonvini , Stefano Forte , Simone Marzani , Giovanni Ridolfi

The production cross section for pseudo-scalar Higgs bosons at hadron colliders is computed at next-to-next-to-leading order (NNLO) in QCD. The pseudo-scalar Higgs is assumed to couple only to top quarks. The NNLO effects are evaluated…

High Energy Physics - Phenomenology · Physics 2011-01-13 Robert V. Harlander , William B. Kilgore

We compute next-to-leading order (NLO) QCD corrections to the production of two massive electroweak bosons in gluon fusion. We consider both the prompt production process $gg \to VV$ and the production mediated by an exchange of an…

High Energy Physics - Phenomenology · Physics 2016-08-24 Fabrizio Caola , Matthew Dowling , Kirill Melnikov , Raoul Röntsch , Lorenzo Tancredi

We compute the total cross-section for direct production of the pseudoscalar Higgs boson in hadron collisions at next-to-next-to-leading order (NNLO) in perturbative QCD. The O(alpha_s^2) QCD corrections increase the NLO production…

High Energy Physics - Phenomenology · Physics 2009-11-07 Charalampos Anastasiou , Kirill Melnikov

In models with an enhanced coupling of the Higgs boson to the bottom quark, the dominant production mechanism in hadronic collisions is often the partonic sub-process, bg ->bH. We derive the weak corrections to this process and show that…

High Energy Physics - Phenomenology · Physics 2015-03-13 S. Dawson , P. Jaiswal

In this contribution we consider NNLO real radiation corrections to the total cross section for Higgs boson pair production in gluon fusion. Special emphasis is put on the cross check of the asymptotic expansion in the inverse top quark…

High Energy Physics - Phenomenology · Physics 2019-12-05 Joshua Davies , Florian Herren , Go Mishima , Matthias Steinhauser