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Higgs Self-Coupling Measurements at a 100 TeV Hadron Collider

Barr, Alan J.; Dolan, Matthew J.; Englert, Christoph; Ferreira de Lima, Danilo Enoque; Spannowsky, Michael

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Alan J. Barr

Matthew J. Dolan

Christoph Englert

Danilo Enoque Ferreira de Lima


An important physics goal of a possible next-generation high-energy hadron collider will be precision characterisation of the Higgs sector and electroweak symmetry breaking. A crucial part of understanding the nature of electroweak symmetry breaking is measuring the Higgs self-interactions. We study dihiggs production in proton-proton collisions at 100 TeV centre of mass energy in order to estimate the sensitivity such a machine would have to variations in the trilinear Higgs coupling around the Standard Model expectation. We focus on the bb¯¯γγbb¯γγ final state, including possible enhancements in sensitivity by exploiting dihiggs recoils against a hard jet. We find that it should be possible to measure the trilinear self-coupling with 40% accuracy given 3/ab and 12% with 30/ab of data.


Barr, A. J., Dolan, M. J., Englert, C., Ferreira de Lima, D. E., & Spannowsky, M. (2015). Higgs Self-Coupling Measurements at a 100 TeV Hadron Collider. Journal of High Energy Physics, 2015(02), Article 016.

Journal Article Type Article
Acceptance Date Jan 15, 2015
Online Publication Date Feb 3, 2015
Publication Date Feb 3, 2015
Deposit Date Nov 10, 2016
Publicly Available Date Mar 15, 2017
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2015
Issue 02
Article Number 016


Published Journal Article (593 Kb)

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Copyright Statement
This article is distributed under the terms of the Creative Commons<br /> Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in<br /> any medium, provided the original author(s) and source are credited.

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