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

Abstract

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.

Citation

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. https://doi.org/10.1007/jhep02%282015%29016

• 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
• Electronic ISSN: 1029-8479
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2015
• Issue: 02
• Article Number: 016
• DOI: https://doi.org/10.1007/jhep02%282015%29016
• Public URL: https://durham-repository.worktribe.com/output/1401131