Effect of anomalous HHH couplings on the decay width of H --> 4l

by BISWAJIT DAS (The Institute of Mathematical Sciences, Chennai)

Friday Nov 15, 2024, 11:00 AM → 12:00 PM Europe/Zurich

Aula U1-07 Marchetti (Milano Bicocca)

Despite the discovery of the Higgs boson, the Higgs sector of the standard model is still not fully established. In particular, the self-couplings of the Higgs boson and its couplings with gauge bosons are still to be fully determined. We consider electroweak corrections to the processes H --> Z Z*--> 4l. The corrections depend on the HHH coupling. We investigate this dependence in the kappa-framework without violating gauge invariance. We find that the width depends on coupling significantly.

h_to_4l_MB.pdf