Probing the Higgs coupling to c quarks in CMS and ATLAS

by Hannah Arnold (Nikhef), Loukas Gouskos (CERN)

Thursday 5 May 2022, 11:00 → 12:00 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

Abstract:

Probing the Higgs boson coupling to the charm quark is one of the last experimentally accessible frontiers in the direct measurement of Higgs boson couplings at the LHC. This Collider Cross Talk will highlight the latest results on the Higgs boson decay to c quarks with LHC Run-2 data by the ATLAS and CMS experiments. We will discuss the experimental challenges for this measurement at the LHC, and compare the analysis methods used by ATLAS and CMS for these results.

Loukas - Short bio:

Loukas Gouskos is a staff researcher at CERN working on the CMS experiment. He received his Ph.D. from the University of Athens. His research interests are focused on the search for physics beyond the standard model and the measurement of the Higgs boson properties. Loukas has a prominent role in searches for supersymmetric partners of the top quark, for Higgs boson decays to a pair of charm quarks, and for Higgs boson pair production in the high-momentum regime. In parallel, Loukas has been deeply involved in the developments in missing transverse momentum reconstruction and in jet tagging particularly with novel machine-learning-based algorithms. Lastly, he is active in the CMS Phase 2 program, focusing on the upgrade of the endcap calorimeters with the High Granularity Calorimeter.

Hannah - Short bio:

Hannah is a postdoctoral researcher at Nikhef (NL) working on the ATLAS experiment. She obtained her PhD at the University of Freiburg. Her research has been focusing on studying Yukawa interactions: she contributed to the observation of the Higgs-boson decay to bottom quarks (H→bb),  led the first boosted VH(→bb) analysis, and recently finished her term as ATLAS H→bb Higgs subgroup convener; she is a primary author of the ATLAS VH(→cc) results highlighted in this talk.