scholarly journals Analytical Method for Next-to-Leading-Order QCD Corrections to Double-Higgs Production

2018 ◽  
Vol 121 (16) ◽  
Author(s):  
Roberto Bonciani ◽  
Giuseppe Degrassi ◽  
Pier Paolo Giardino ◽  
Ramona Gröber
Keyword(s):  
Analytical Method ◽  
Higgs Production ◽  
Leading Order

scholarly journals Higgs production in gluon fusion at next-to-next-to-leading order QCD for finite top mass

2010 ◽  
Vol 66 (3-4) ◽  
pp. 359-372 ◽  
Author(s):  
Robert V. Harlander ◽  
Hendrik Mantler ◽  
Simone Marzani ◽  
Kemal J. Ozeren
Keyword(s):  
Gluon Fusion ◽  
Higgs Production ◽  
Leading Order ◽  
Top Mass

scholarly journals Higgs production in bottom-quark fusion: Matching beyond leading order

2016 ◽  
Vol 763 ◽  
pp. 190-196 ◽  
Author(s):  
Stefano Forte ◽  
Davide Napoletano ◽  
Maria Ubiali
Keyword(s):  
Bottom Quark ◽  
Higgs Production ◽  
Leading Order

scholarly journals On the impact of non-factorisable corrections in VBF single and double Higgs production

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Frédéric A. Dreyer ◽  
Alexander Karlberg ◽  
Lorenzo Tancredi
Keyword(s):  
Vector Boson ◽  
Relative Size ◽  
Eikonal Approximation ◽  
Higgs Production ◽  
Leading Order ◽  
Scale Uncertainty ◽  
Before And After ◽  
Depth Study ◽  
Uncertainty Band ◽  
The Impact

Abstract We study the non-factorisable QCD corrections, computed in the eikonal approximation, to Vector-Boson Fusion single and double Higgs production and show the combined factorisable and non-factorisable corrections for both processes at $$ \mathcal{O}\left({\alpha}_s^2\right) $$ O α s 2 . We investigate the validity of the eikonal approximation with and without selection cuts, and carry out an in-depth study of the relative size of the non-factorisable next-to-next-to-leading order corrections compared to the factorisable ones. In the case of single Higgs production, after selection cuts are applied, the non-factorisable corrections are found to be mostly contained within the factorisable scale uncertainty bands. When no cuts are applied, instead, the non-factorisable corrections are slightly outside the scale uncertainty band. Interestingly, for double Higgs production, we find that both before and after applying cuts, non-factorisable corrections are enhanced compared to the single Higgs case. We trace this enhancement to the existence of delicate cancellations between the various leading-order Feynman diagrams, which are partly spoiled by radiative corrections. All contributions studied here have been implemented in proVBFH v1.2.0 and proVBFHH v1.1.0.

scholarly journals Higgs production via gluon–gluon fusion with finite top mass beyond next-to-leading order

2008 ◽  
Vol 800 (1-2) ◽  
pp. 127-145 ◽  
Author(s):  
Simone Marzani ◽  
Richard D. Ball ◽  
Vittorio Del Duca ◽  
Stefano Forte ◽  
Alessandro Vicini
Keyword(s):  
Gluon Fusion ◽  
Higgs Production ◽  
Leading Order ◽  
Top Mass

scholarly journals Erratum: Fully Differential Vector-Boson-Fusion Higgs Production at Next-to-Next-to-Leading Order [Phys. Rev. Lett. 115 , 082002 (2015)]

2018 ◽  
Vol 120 (13) ◽  
Author(s):  
Matteo Cacciari ◽  
Frédéric A. Dreyer ◽  
Alexander Karlberg ◽  
Gavin P. Salam ◽  
Giulia Zanderighi
Keyword(s):  
Vector Boson ◽  
Higgs Production ◽  
Vector Boson Fusion ◽  
Leading Order ◽  
Fully Differential

scholarly journals Forward Higgs production within high energy factorization in the heavy quark limit at next-to-leading order accuracy

2021 ◽  
Vol 81 (2) ◽  
Author(s):  
M. Hentschinski ◽  
K. Kutak ◽  
A. van Hameren
Keyword(s):  
Effective Action ◽  
High Energy ◽  
Higgs Production ◽  
Explicit Calculation ◽  
Leading Order ◽  
Forward Region ◽  
Transverse Momentum Dependent ◽  
Heavy Quark Limit ◽  
Proper Definition ◽  
Definition Of

AbstractWe use Lipatov’s high energy effective action to determine the next-to-leading order corrections to Higgs production in the forward region within high energy factorization making use of the infinite top mass limit. Our result is based on an explicit calculation of real corrections combined with virtual corrections determined earlier by Nefedov. As a new element we provide a proper definition of the desired next-to-leading order coefficient within the high energy effective action framework, extending a previously proposed prescription. We further propose a subtraction mechanism to achieve for this coefficient a stable cancellation of real and virtual infra-red singularities in the presence of external off-shell legs. Apart from its relevance for direct phenomenological studies, such as high energy resummation of Higgs $$+$$ + jet configurations, our result will be further of use for the study of transverse momentum dependent factorization in the high energy limit.

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