Di-Higgs phenomenology in tthh¯: the forgotten channel

Englert, C. , Krauss, F., Spannowsky, M. and Thompson, J. M. (2015) Di-Higgs phenomenology in tthh¯: the forgotten channel. Physics Letters B, 743, pp. 93-97. (doi: 10.1016/j.physletb.2015.02.041)

Abstract

Searches for multi-Higgs final states allow to constrain parameters of the SM (or extensions thereof) that directly relate to the mechanism of electroweak symmetry breaking. Multi-Higgs production cross sections, however, are small and the phenomenologically accessible final states are challenging to isolate in the busy multi-jet hadron collider environment of the LHC run 2 and HL-LHC. This makes the necessity to extend the list of potentially observable production mechanisms obvious. Most of the phenomenological analyses in the past have focused on gg→hh+jets; in this paper we study View the MathML source at the HL-LHC and find that this channel for View the MathML source and semi-leptonic and hadronic top decays has the potential to provide an additional handle to constrain the Higgs trilinear coupling in a global fit at the end of the high luminosity phase.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Englert, Professor Christoph
• Authors: Englert, C., Krauss, F., Spannowsky, M., and Thompson, J. M.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physics Letters B
• Publisher: Elsevier BV
• ISSN: 0370-2693
• ISSN (Online): 1873-2445
• Copyright Holders: Copyright © 2015 The Authors
• First Published: First published in Physics Letters B 743(2015):93-37
• Publisher Policy: Reproduced under a Creative Commons License