CERN Accelerating science

Article
Report number arXiv:1611.03860
Title Higgs pair production in vector-boson fusion at the LHC and beyond
Related titleHiggs pair production in vector-boson fusion at the LHC and beyond
Author(s) Bishara, Fady (Oxford U., Theor. Phys.) ; Contino, Roberto (Pisa, Scuola Normale Superiore ; CERN ; ITPP, Lausanne ; INFN, Pisa) ; Rojo, Juan (Vrije U., Amsterdam ; NIKHEF, Amsterdam)
Publication 2017-07-19
Imprint 11 Nov 2016
Number of pages 42
Note Comments: 41 pages, 17 figures, 10 tables
Updated to match published version in EPJC and fixed typo in Tab. 10 (column labels a & b were swapped)
In: Eur. Phys. J. C 77 (2017) 481
DOI 10.1140/epjc/s10052-017-5037-9
Subject category Particle Physics - Phenomenology ; hep-ex ; hep-ph ; Particle Physics - Experiment
Abstract The production of pairs of Higgs bosons at hadron colliders provides unique information on the Higgs sector and on the mechanism underlying electroweak symmetry breaking (EWSB). Most studies have concentrated on the gluon fusion production mode which has the largest cross section. However, despite its small production rate, the vector-boson fusion channel can also be relevant since even small modifications of the Higgs couplings to vector bosons induce a striking increase of the cross section as a function of the invariant mass of the Higgs boson pair. In this work, we exploit this unique signature to propose a strategy to extract the $hhVV$ quartic coupling and provide model-independent constraints on theories where EWSB is driven by new strong interactions. We take advantage of the higher signal yield of the $b\bar b b\bar b$ final state and make extensive use of jet substructure techniques to reconstruct signal events with a boosted topology, characteristic of large partonic energies, where each Higgs boson decays to a single collimated jet . Our results demonstrate that the $hhVV$ coupling can be measured with 45% (20%) precision at the LHC for $\mathcal{L}=$ 300 (3000) fb$^{-1}$, while a 1% precision can be achieved at a 100 TeV collider.
Copyright/License arXiv nonexclusive-distrib. 1.0



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 ჩანაწერი შექმნილია 2016-11-15, ბოლოს შესწორებულია 2021-11-12


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