5–7 Oct 2022
DESY Hamburg
Europe/Berlin timezone

Studies of di-Higgs production at the FCC-hh in the bbZZ(llvv) final state

6 Oct 2022, 17:30
2h
Canteen and extension (DESY Hamburg)

Canteen and extension

DESY Hamburg

Poster WG1-HTE - Physics Potential: Higgs, top, and electroweak Poster Session

Speaker

Kevin Laudamus (CMS (CMS Fachgruppe HIGGS))

Description

The FCC-hh is a proposed circular hadron collider at an energy of 100 TeV. The total integrated luminosity is expected to be around 30 $ab^{-1}$. With such a large dataset, 400 times more double-Higgs events are expected than with the full HL-LHC dataset, allowing to measure the Higgs self-coupling with high precision. As a consequence, also rarer final states, which are not within reach of the (HL)-LHC, have good prospects at the FCC-hh. One such final state is the bbZZ(ll$\nu\nu$) channel, which has only an Branching Ratio of 0.12\%. With a regular cut-based analysis the potential of this channel is very limited.
This study implements a multivariate analysis using neural networks to see if it is a feasible channel that can be used to help to improve the Higgs self-coupling measurement.
Upper limits on the di-Higgs production cross-section are derived in order to assess the potential of this channel.

Primary author

Kevin Laudamus (CMS (CMS Fachgruppe HIGGS))

Co-authors

Birgit Stapf (ATLAS (ATLAS Higgs Physics)) Elisabetta Gallo-Voss (CMS (CMS-Experiment)) Kerstin Tackmann (BELLE (BELLE Gruppe))

Presentation materials

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