English
Related papers

Related papers: Pseudo-scalar Form Factors at Three Loops in QCD

200 papers

Higgs bosons can be produced copiously at the LHC via gluon fusion induced by top and bottom quark loops, and can be enhanced strongly if extra heavy quarks exist. We present results for Higgs +zero-, one- and two-jet production at the LHC,…

High Energy Physics - Phenomenology · Physics 2011-11-07 Qiang Li , Michael Spira , Jun Gao , Chong Sheng Li

We study the production of a mixed scalar-pseudoscalar Higgs boson in gluon fusion at the LHC, through next-to-next-to-leading order (NNLO) in QCD. We obtain fully differential results, including the decay of the Higgs boson to two charged…

High Energy Physics - Phenomenology · Physics 2020-06-24 Matthieu Jaquier , Raoul Röntsch

We provide the complete set of predictions needed to achieve NLO accuracy in the Standard Model Effective Field Theory at dimension six for Higgs production in gluon fusion. In particular, we compute for the first time the contribution of…

High Energy Physics - Phenomenology · Physics 2018-03-12 Nicolas Deutschmann , Claude Duhr , Fabio Maltoni , Eleni Vryonidou

We compute the four-loop corrections to the Higgs-bottom vertex within massless QCD and present analytic results for all color structures. The infrared poles of the renormalized form factor agree with the predicted four-loop pattern.…

Quark mass effects in ${\cal O}(\alpha_s^2)$ QCD corrections to the decay rates of intermediate Higgs bosons are studied. The total hadronic rate and the partial decay rate into bottom quarks are analyzed for the Standard (scalar) Higgs…

High Energy Physics - Phenomenology · Physics 2009-10-28 K. G. Chetyrkin , A. Kwiatkowski

We have computed the full next-to-leading (NLO) QCD corrections to the differential distributions $d^2\sigma/(dp_T~dy)$ for pseudo-scalar Higgs (A) production at large hadron colliders. This calculation has been carried out using the…

High Energy Physics - Phenomenology · Physics 2009-11-07 B. Field , J. Smith , M. E. Tejeda-Yeomans , W. L. van Neerven

The associated production of a Higgs boson with a b quark is a discovery mode for an MSSM Higgs boson at large tan beta. We compute the SUSY QCD corrections from gluino and squark loops to this process and combine them with the order…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Dawson , C. B. Jackson

Inclusive Higgs measurements at the LHC have limited resolution on the gluon fusion loops, being unable to distinguish the long-distance contributions mediated by the top quark from possible short-distance new physics effects. Using an…

High Energy Physics - Phenomenology · Physics 2018-05-01 Aleksandr Azatov , Christophe Grojean , Ayan Paul , Ennio Salvioni

In generalizations of the Standard Models with extended scalar sectors, pseudoscalar particles will contribute to associated production of the Higgs boson discovered at the LHC, $h$, and the $Z$ boson. The pseudoscalar can be produced via…

High Energy Physics - Phenomenology · Physics 2026-03-25 J. Dutta , P. M. Ferreira , S. Heinemeyer

We present the cross-section for the production of a Higgs boson at hadron-colliders at next-to- next-to-next-to-leading order (N3LO) in perturbative QCD. The calculation is based on a method to perform a series expansion of the partonic…

High Energy Physics - Phenomenology · Physics 2015-06-03 Charalampos Anastasiou , Claude Duhr , Falko Dulat , Franz Herzog , Bernhard Mistlberger

Production of the Higgs boson, $H$ in association with a massive vector boson, $V$, i.e., the $VH$ process, plays an important role in the explorations of Higgs physics at the Large Hadron Collider, both for a precise study of Higgs'…

High Energy Physics - Phenomenology · Physics 2020-01-29 Taushif Ahmed , A. H. Ajjath , Long Chen , Prasanna K. Dhani , Pooja Mukherjee , V. Ravindran

I discuss recent theoretical results with soft-gluon corrections for various top-quark production processes through approximate N$^3$LO, including soft anomalous dimensions through three loops. I present numerical results for total cross…

High Energy Physics - Phenomenology · Physics 2023-02-21 Nikolaos Kidonakis

We compute two-loop electroweak corrections to double Higgs boson production in gluon fusion mediated by light quarks in a fully analytical way. We determine a basis of master integrals satisfying canonical differential equations in…

High Energy Physics - Phenomenology · Physics 2025-06-03 Marco Bonetti , Philipp Rendler , William J. Torres Bobadilla

The calculation of the next-to-leading order QCD corrections to the production of a neutral Higgs-boson pair is briefly summarized. The dominant production mechanism is gluon fusion via top-quark loops, so that the QCD corrections can be…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Dawson , S. Dittmaier , M. Spira

We present precise results for the inclusive Higgs boson cross-section in gluon-gluon fusion at the LHC considering state-of-the-art fourth-order results in perturbative QCD arising from the dominant soft and virtual gluon emissions.…

High Energy Physics - Phenomenology · Physics 2026-01-28 Goutam Das , Sven-Olaf Moch

Recent theoretical progress in the evaluation of Higgs boson production at the LHC within the Standard Model and its minimal supersymmetric extension is reviewed. In particular the two-loop QCD corrections to the squark loop contributions…

High Energy Physics - Phenomenology · Physics 2007-05-23 Michael Spira

In order to solve the hierarchy problem, several extra-dimensional models have received considerable attention. We have considered a process where a Higgs boson is produced in association with a KK-graviton ($G_{\rm KK}$) at the LHC. At the…

High Energy Physics - Phenomenology · Physics 2013-05-13 Ambresh Shivaji , Subhadip Mitra , Pankaj Agrawal

Loops of the scalar particles present in Little Higgs models generate radiatively scalar operators that have been overlooked before in Little Higgs analyses. We compute them using a technique, recently proposed to deal with scalar…

High Energy Physics - Phenomenology · Physics 2010-10-27 J. R. Espinosa , J. M. No

We estimate the attainable limits on the coefficients of dimension--6 operators from the analysis of Higgs boson phenomenology, in the framework of a $SU_L(2) \times U_Y(1)$ gauge-invariant effective Lagrangian. Our results, based on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. C. Gonzalez-Garcia

We estimate the attainable limits on the coefficients of dimension--6 operators from the analysis of Higgs boson phenomenology, in the framework of a $SU_L(2) \times U_Y(1)$ gauge-invariant effective Lagrangian. Our results, based on the…

High Energy Physics - Phenomenology · Physics 2009-10-30 F. de Campos , M. C. Gonzalez-Garcia , S. F. Novaes