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T: Fachverband Teilchenphysik
T 70: Di-Higgs 2 (4b & other)
T 70.5: Vortrag
Mittwoch, 6. März 2024, 17:00–17:15, Geb. 30.41: HS 1
Prospects for the search for Higgs boson pair production in the WWγγ channel at future hadron colliders — Johannes Erdmann, Jan Lukas Späh, and •Jialiang Sun — III. Physikalisches Institut A, RWTH Aachen University
Measuring Higgs boson pair production is important because it allows for direct access to the Higgs trilinear coupling. In LHC run 3 and the HL-LHC, the most sensitive final states are bbγγ, bbττ, and bbbb, since the decay H→ bb has the largest branching fraction. However, for higher center-of-mass energies and integrated luminosities at future hadron colliders, it may be beneficial to explore not only these prominent channels but also consider rarer but cleaner decay channels that comprise leptons, photons, and missing transverse energy.
In this talk, we present a sensitivity study for Higgs boson pair production in the WW(→ e±µ∓νeνµ)γγ final state, in which both gluon fusion and vector boson fusion production channels are considered. The primary background for this final state arises from the associated Higgs boson production with a top quark pair. We train a classifier to distinguish the signal from the main backgrounds. A preliminary estimate for the expected sensitivity will be given.
Keywords: Di-Higgs; HL-LHC; Trilinear coupling