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We consider QCD corrections to Higgs boson production through gluon-gluon fusion in hadron collisions. Using the recently evaluated two-loop amplitude for this process and the corresponding factorization formulae for soft-gluon…

High Energy Physics - Phenomenology · Physics 2010-02-03 S. Catani , D. de Florian , M. Grazzini

We investigate the possibility of probing the triplet Higgs boson sector via single charged Higgs production in the process $e^+ e^- \to H^+ l \nu_l$, at high energy electron-positron colliders, using the tree level $H^+W^-Z$ coupling which…

High Energy Physics - Phenomenology · Physics 2009-10-28 R. M. Godbole , B. Mukhopadhyaya , M. Nowakowski

The Higgs triplet model (HTM) predicts the existence of a pair of doubly charged Higgs bosons $H^{\pm \pm}$. Single production of $H^{\pm \pm}$ via e collision at the next generation e+e- International Linear Collider (ILC) and the Large…

High Energy Physics - Phenomenology · Physics 2010-10-25 Chong-Xing Yue , Xue-Song Su , Jiao Zhang , Jue Wang

The results of the searches for a Higgs boson decaying to down-type fermions are presented using the proton-proton collision data collected by the ATLAS and CMS experiments at the LHC, at a centre-of-mass energy of 7 and 8 TeV. The results…

High Energy Physics - Experiment · Physics 2019-08-14 Aruna Kumar Nayak

In this paper, we will derive the cross section formula for the Higgs pair production at a linear $e^+e^-$ collider in models with large extra dimensions and study the feasibility of its measurement through realistic Monte Carlo…

High Energy Physics - Experiment · Physics 2009-11-10 Nicolas Delerue , Keisuke Fujii , Nobuchika Okada

We extend the recent computation of Higgs boson production in association with a jet through next-to-next-to-leading order in perturbative QCD by including decays of the Higgs boson to electroweak vector bosons. This allows us to compute…

High Energy Physics - Phenomenology · Physics 2015-10-28 Fabrizio Caola , Kirill Melnikov , Markus Schulze

The processes e+e- -> t tbar/b bbar + Higgs allow to measure the Yukawa couplings between Higgs bosons and heavy quarks in supersymmetric theories. The complete set of next-to-leading order SUSY-QCD corrections to the cross sections of…

High Energy Physics - Phenomenology · Physics 2010-04-05 Petra Häfliger , Michael Spira

We calculate the production and decay rates of the Higgs boson at the LHC in the context of general 5 dimensional (5D) warped scenarios with a spacetime background modified from the usual $AdS_5$, with SM fields propagating in the bulk. We…

High Energy Physics - Phenomenology · Physics 2016-03-23 Mariana Frank , Nima Pourtolami , Manuel Toharia

We calculate the next-to-next-to-next-to-leading-order (N$^3$LO) QCD corrections to inclusive vector-boson fusion (VBF) Higgs production at proton colliders, in the limit in which there is no colour exchange between the hadronic systems…

High Energy Physics - Phenomenology · Physics 2016-08-17 Frédéric A. Dreyer , Alexander Karlberg

In scenarios with sterile (right-handed) neutrinos that are subject to an approximate "lepton-number-like" symmetry, the heavy neutrinos (i.e. the mass eigenstates) can have masses around the electroweak scale and couple to the Higgs boson…

High Energy Physics - Phenomenology · Physics 2016-05-25 Stefan Antusch , Eros Cazzato , Oliver Fischer

Photon-photon linear colliders can be realized by laser back-scattering technique on the next generation linear $e^+e^-$ colliders. Here the associated productions of an intermediate mass Higgs (IMH) or Z-boson with $t \bar t$ pair in…

High Energy Physics - Phenomenology · Physics 2009-10-22 Kingman Cheung

We investigate multi-Higgs boson production at proton colliders, in a framework involving anomalous interactions, focusing on triple Higgs boson production. We consider modifications to the Higgs boson self-couplings, to the Yukawa…

High Energy Physics - Phenomenology · Physics 2024-07-22 Andreas Papaefstathiou , Gilberto Tetlalmatzi-Xolocotzi

We present results for the Standard model description of the four-lepton production, mediated both by Higgs boson production and by other one-loop standard model processes. The description of four-lepton final states in MCFM v6.8 is…

High Energy Physics - Phenomenology · Physics 2014-08-11 John M. Campbell , R. Keith Ellis , Ciaran Williams

This note describes the details of a simulation study of the Higgs boson production for processes in which the Higgs is produced together with a well measurable di-lepton system using the proposal of the ILD detector for its Letter of…

High Energy Physics - Experiment · Physics 2019-08-14 H. Li , R. Pöschl , F. Richard

I present theoretical calculations for Higgs-boson and top-quark production, including high-order soft-gluon corrections. I discuss charged-Higgs production in association with a top quark or a $W$ boson, as well as single-top and…

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

The idea of fermion mass generation through Yukawa couplings between Higgs bosons and fermions may be tested by their associated production at future linear colliders (LC). We study the production mechanism in the minimal supersymmeric…

High Energy Physics - Phenomenology · Physics 2009-10-31 Jun-Yu Guo , Yi Liao , Yu-Ping Kuang

Our goal is to investigate the charged Higgs phenomenology in the framework of 2HDM at the upcoming $e^+e^-$ and muon colliders. We are primarily concerned with the associated production processes with a fermion pair: $\ell^+ \ell^- \to…

High Energy Physics - Phenomenology · Physics 2024-09-02 Brahim Ait Ouazghour , Abdesslam Arhrib , Kingman Cheung , Es-said Ghourmin , Larbi Rahili

In this paper, we examine the potential of Higgs boson production associated with a photon at the LHC to probe the new physics effects in the framework of the standard model effective field theory. It is shown that the differential…

High Energy Physics - Phenomenology · Physics 2017-09-21 Hamzeh Khanpour , Sara Khatibi , Mojtaba Mohammadi Najafabadi

We investigate the inclusive production of the Higgs bosons of the minimal supersymmetric model with a heavy quark pair, ($t {\bar t}$ and $b {\bar b}$), in e^+e^- collisions at high energies, $\sqrt{s}=500 GeV$ and $\sqrt{s}=1 TeV$. The…

High Energy Physics - Phenomenology · Physics 2016-08-25 S. Dawson , L. Reina

We present a calculation of the O(alpha_s) QCD corrections to the production of a Z boson in association with two photons and to triple photon production at hadron colliders. All final-state photons are taken as real. For the Z boson, we…

High Energy Physics - Phenomenology · Physics 2013-05-29 G. Bozzi , F. Campanario , M. Rauch , D. Zeppenfeld