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In this paper we investigate anomalous interactions of the Higgs boson with heavy fermions, employing shapes of kinematic distributions. We study the processes $pp \to t\bar{t} + H$, $b\bar{b} + H$, $tq+H$, and $pp \to H\to\tau^+\tau^-$,…

High Energy Physics - Phenomenology · Physics 2019-08-09 Andrei V. Gritsan , Raoul Röntsch , Markus Schulze , Meng Xiao

We present a study of Higgs boson production in vector boson fusion and in association with a vector boson and its decay to two vector bosons, with a focus on the treatment of virtual loops and virtual photons. Our analysis is performed…

High Energy Physics - Phenomenology · Physics 2022-08-22 Jeffrey Davis , Andrei V. Gritsan , Lucas S. Mandacaru Guerra , Savvas Kyriacou , Jeffrey Roskes , Markus Schulze

We introduce a framework, based on an effective field theory approach, that allows one to perform characterisation studies of the boson recently discovered at the LHC, for all the relevant channels and in a consistent, systematic and…

High Energy Physics - Phenomenology · Physics 2015-06-16 P. Artoisenet , P. de Aquino , F. Demartin , R. Frederix , S. Frixione , F. Maltoni , M. K. Mandal , P. Mathews , K. Mawatari , V. Ravindran , S. Seth , P. Torrielli , M. Zaro

We analyze the potential of the CERN Large Hadron Collider (LHC) to study anomalous quartic vector-boson interactions Z Z gamma gamma, Z Z Z gamma, W+ W- gamma gamma, and W+ W- Z gamma through the weak boson fusion processes q q -> q q…

High Energy Physics - Phenomenology · Physics 2008-11-26 O. J. P. Eboli , M. C. Gonzalez-Garcia , S. M. Lietti

We explore the new physics reach for the off-shell Higgs boson measurement in the ${pp \to H^* \rightarrow Z(\ell^{+}\ell^{-})Z(\nu\bar{\nu})}$ channel at the high-luminosity LHC. The new physics sensitivity is parametrized in terms of the…

High Energy Physics - Phenomenology · Physics 2021-05-05 Dorival Gonçalves , Tao Han , Sze Ching Iris Leung , Han Qin

In this paper, we study the extent to which CP parity of a Higgs boson, and more generally its anomalous couplings to gauge bosons, can be measured at the LHC and a future electron-positron collider. We consider several processes, including…

Boson boson scattering and Higgs production in boson boson fusion will be actively investigated at the LHC. We have performed a parton level study of all processes of the type $q_1 q_2 \to q_3 q_4 q_5 q_6 l^+l^-$ using for the first time a…

High Energy Physics - Phenomenology · Physics 2009-09-29 E. Accomando , A. Ballestrero , A. Belhouari , E. Maina

The process of gluon-initiated double Higgs production is sensitive to non-linear interactions of the Higgs boson. In the context of the Standard Model, studies of this process focused on the extraction of the Higgs trilinear coupling. In a…

High Energy Physics - Phenomenology · Physics 2015-06-05 Roberto Contino , Margherita Ghezzi , Mauro Moretti , Giuliano Panico , Fulvio Piccinini , Andrea Wulzer

We study Higgs + jet production at hadron colliders in order to look for new physics residual effects possibly described by the $dim=6$ operators ${\O}_{GG}$ and ${\widetilde\O}_{GG}$ which induce anomalous $Hgg$ and $Hggg$ couplings. Two…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. J. Gounaris , J. Layssac , F. M. Renard

We analyze the potential of the CERN Large Hadron Collider (LHC) to study the structure of quartic vector-boson interactions through the pair production of electroweak gauge bosons via weak boson fusion q q -> q q W W. In order to study…

High Energy Physics - Phenomenology · Physics 2008-11-26 O. J. P. Eboli , M. C. Gonzalez-Garcia , J. K. Mizukoshi

We analyse the associated production of Higgs and $Z$ boson via heavy-quark loops at the LHC in the Standard Model and beyond. We first review the main features of the Born $2\to 2$ production, and in particular discuss the high-energy…

High Energy Physics - Phenomenology · Physics 2015-03-06 B. Hespel , F. Maltoni , E. Vryonidou

In this paper, we propose a new Hybrid Quantum Machine Learning (HyQML) framework to improve the sensitivity of double Higgs boson searches in the $HH \to b\bar{b}\gamma\gamma$ final state at $\sqrt{s}$ = 13.6 TeV. The proposed model…

High Energy Physics - Experiment · Physics 2025-11-20 Marwan Ait Haddou , Mohamed Belfkir , Salah Eddine El Harrauss

Studies of on-shell and off-shell Higgs boson production in the four-lepton final state are presented, using data from the CMS experiment at the LHC that correspond to an integrated luminosity of 80.2 fb$^{-1}$ at a center-of-mass energy of…

High Energy Physics - Experiment · Physics 2019-06-26 CMS Collaboration

This study investigates the potential of the TESLA Linear Collider for measuring resonance parameters of Higgs bosons beyond the mass range studied so far. The analysis is based on the reconstruction of events from the Higgsstrahlung…

High Energy Physics - Phenomenology · Physics 2007-05-23 Niels Meyer

We study the impact of anomalous couplings in the Higgs sector on the shape of the Higgs boson pair invariant mass distribution at NLO. Our analysis is based on a five-dimensional coupling parameter space relevant for Higgs boson pair…

High Energy Physics - Phenomenology · Physics 2019-12-17 Matteo Capozi , Gudrun Heinrich

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 investigate the sensitivities on the Wilson coefficients of dimension-six operators associated with the anomalous $H\gamma\gamma$, $H\gamma Z$ and $HZZ$ vertices through the process $\mu^- \mu^+ \rightarrow Z\gamma\gamma$ at future muon…

High Energy Physics - Phenomenology · Physics 2025-10-21 Serdar Spor

This review covers results on the production of all possible electroweak boson pairs and 2-to-1 vector boson fusion at the CERN Large Hadron Collider (LHC) in proton-proton collisions at a center of mass energy of 7 and 8 TeV. The data were…

High Energy Physics - Experiment · Physics 2017-09-22 Daniel R. Green , Patrick Meade , Marc-Andre Pleier

Deviations from SM expectations in the Higgs sector can be parameterized by an effective Lagrangian. The corresponding anomalous couplings have been implemented in a Monte Carlo program for Higgs production in vector boson fusion, at NLO…

High Energy Physics - Phenomenology · Physics 2008-11-26 T. Figy , V. Hankele , G. Klamke , D. Zeppenfeld

We derive bounds on Higgs and gauge--boson anomalous interactions using the CDF data for the process $p \bar{p} \to \gamma\gamma\gamma + X$. We use a linearly realized $SU_L(2) \times U_Y(1)$ invariant effective Lagrangian to describe the…

High Energy Physics - Phenomenology · Physics 2009-10-31 F. de Campos , M. C. Gonzalez-Garcia , S. M. Lietti , S. F. Novaes , R. Rosenfeld
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