Di-Higgs phenomenology in t¯thh: The forgotten channel

Englert, Christoph; Krauss, Frank; Spannowsky, Michael; Thompson, Jennifer

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 pp →t¯thhat the HL-LHC and find that this channel for h →b¯ band 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.

Citation

Englert, C., Krauss, F., Spannowsky, M., & Thompson, J. (2015). Di-Higgs phenomenology in t¯thh: The forgotten channel. Physics Letters B, 743, 93-97. https://doi.org/10.1016/j.physletb.2015.02.041

• Journal Article Type: Article
• Acceptance Date: Feb 18, 2015
• Online Publication Date: Feb 20, 2015
• Publication Date: Apr 9, 2015
• Deposit Date: Mar 2, 2016
• Publicly Available Date: Apr 8, 2016
• Journal: Physics Letters B
• Print ISSN: 0370-2693
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 743
• Pages: 93-97
• DOI: https://doi.org/10.1016/j.physletb.2015.02.041