Higgs selfcoupling measurements at a 100 TeV hadron collider
Abstract
An important physics goal of a possible nextgeneration highenergy 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 selfinteractions. We study dihiggs production in protonproton 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 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 selfcoupling with 40% accuracy given 3/ab and 12% with 30/ab of data.
 Publication:

Journal of High Energy Physics
 Pub Date:
 February 2015
 DOI:
 10.1007/JHEP02(2015)016
 arXiv:
 arXiv:1412.7154
 Bibcode:
 2015JHEP...02..016B
 Keywords:

 Monte Carlo Simulations;
 Hadronic Colliders;
 High Energy Physics  Phenomenology;
 High Energy Physics  Experiment
 EPrint:
 9 pages, 6 figures, v2: minor revisions, cites added