scholarly journals Probing new physics of cubic Higgs boson interaction via Higgs pair production at hadron colliders

2016 ◽  
Vol 93 (1) ◽  
Author(s):  
Hong-Jian He ◽  
Jing Ren ◽  
Weiming Yao
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
New Physics ◽  
Hadron Colliders

scholarly journals Higgs boson pair production in the little Higgs model at hadron colliders

2004 ◽  
Vol 70 (1) ◽  
Author(s):  
Liu Jing-Jing ◽  
Ma Wen-Gan ◽  
Li Gang ◽  
Zhang Ren-You ◽  
Hou Hong-Sheng
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Higgs Model ◽  
Little Higgs ◽  
Hadron Colliders ◽  
Boson Pair ◽  
Boson Pair Production

scholarly journals Optimized Probes of the CP Nature of the Top Quark Yukawa Coupling at Hadron Colliders

Symmetry ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1129
Author(s):  
Darius A. Faroughy ◽  
Blaž Bortolato ◽  
Jernej F. Kamenik ◽  
Nejc Košnik ◽  
Aleks Smolkovič
Keyword(s):  
Machine Learning ◽  
Higgs Boson ◽  
Phase Space ◽  
Weight Function ◽  
Pair Production ◽  
Linear Combination ◽  
Top Quark ◽  
Hadron Colliders ◽  
Optimal Linear ◽  
Hadronic Process

We summarize our recent proposals for probing the CP-odd iκ˜t¯γ5th interaction at the LHC and its projected upgrades directly using associated on-shell Higgs boson and top quark or top quark pair production. We first recount how to construct a CP-odd observable based on top quark polarization in Wb→th scattering with optimal linear sensitivity to κ˜. For the corresponding hadronic process pp→thj we then present a method of extracting the phase-space dependent weight function that allows to retain close to optimal sensitivity to κ˜. For the case of top quark pair production in association with the Higgs boson, pp→tt¯h, with semileptonically decaying tops, we instead show how one can construct manifestly CP-odd observables that rely solely on measuring the momenta of the Higgs boson and the leptons and b-jets from the decaying tops without having to distinguish the charge of the b-jets. Finally, we introduce machine learning (ML) and non-ML techniques to study the phase-space optimization of such CP-odd observables. We emphasize a simple optimized linear combination α·ω that gives similar sensitivity as the studied fully fledged ML models. Using α·ω we review sensitivity projections to κ˜ at HL-LHC, HE-LHC, and FCC-hh.

scholarly journals Higgs boson pair production at future hadron colliders: From kinematics to dynamics

2018 ◽  
Vol 97 (11) ◽  
Author(s):  
Dorival Gonçalves ◽  
Tao Han ◽  
Felix Kling ◽  
Tilman Plehn ◽  
Michihisa Takeuchi
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Hadron Colliders ◽  
Boson Pair ◽  
Boson Pair Production

scholarly journals Higgs boson pair production in new physics models at hadron, lepton, and photon colliders

2010 ◽  
Vol 82 (11) ◽  
Author(s):  
Eri Asakawa ◽  
Daisuke Harada ◽  
Shinya Kanemura ◽  
Yasuhiro Okada ◽  
Koji Tsumura
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
New Physics ◽  
Boson Pair ◽  
Boson Pair Production

scholarly journals Non-resonant new physics in top pair production at hadron colliders

2011 ◽  
Vol 2011 (3) ◽  
Author(s):  
Céline Degrande ◽  
Jean-Marc Gérard ◽  
Christophe Grojean ◽  
Fabio Maltoni ◽  
Géraldine Servant
Keyword(s):  
Pair Production ◽  
New Physics ◽  
Hadron Colliders ◽  
Top Pair Production

scholarly journals Supersymmetric Higgs boson pair production at hadron colliders

1999 ◽  
Vol 60 (7) ◽  
Author(s):  
A. Belyaev ◽  
M. Drees ◽  
O. J. P. Éboli ◽  
J. K. Mizukoshi ◽  
S. F. Novaes
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Hadron Colliders ◽  
Boson Pair ◽  
Boson Pair Production

scholarly journals Disentangling new physics effects on nonresonant Higgs boson pair production from gluon fusion

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Kingman Cheung ◽  
Adil Jueid ◽  
Chih-Ting Lu ◽  
Jeonghyeon Song ◽  
Yeo Woong Yoon
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Gluon Fusion ◽  
New Physics ◽  
Boson Pair ◽  
Boson Pair Production

scholarly journals Quantum interference effects in Higgs boson pair-production beyond the standard model

2021 ◽  
Vol 81 (4) ◽  
Author(s):  
Biswaranjan Das ◽  
Stefano Moretti ◽  
Shoaib Munir ◽  
Poulose Poulose
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Pair Production ◽  
Quantum Interference ◽  
Hadron Collider ◽  
Gluon Fusion ◽  
Higgs Doublet ◽  
New Physics ◽  
Interference Effects ◽  
The Impact

AbstractNew physics frameworks like the next-to-minimal supersymmetric standard Model and the Next-to-2-Higgs-doublet Model contain three neutral CP-even Higgs bosons. It is possible for the heavier two of these states to have masses identical to each other, which can result in a sizeable quantum interference between their propagators in processes they mediate. For both these models, we study the impact of such interference on the pair-production of the lightest of the three scalars, which we identify with the observed 125 GeV Higgs boson, in the gluon-fusion channel at the large hadron collider (LHC). We find that the inclusion of these effects can substantially alter the cross section, compared to its value when they are ignored, for this process. Our results illustrate the importance of taking possible quantum interference effects into account not only when investigating the phenomenology of extended Higgs sectors at the future Run(s) of the LHC, but also when imposing its current exclusion bounds on the parameter spaces of these models.

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