Seminarios y conferencias

HH searches at the LHC

by Agni Bethani (University of Maryland)

UTC
Maria de Maeztu (Edificio 2)

Maria de Maeztu

Edificio 2

Description

The Higgs boson was discovered by the CMS and ATLAS Collaborations in 2012, at the LHC, at CERN. This was the final missing piece of the Standard Model (SM) of particle physics.

The Higgs field provides a mechanism for including weakly interacting massive vector bosons in the SM, and for "giving" masses to quarks and leptons.

 To properly understand this mechanism, we need to determine the shape of the Higgs potential experimentally. The Higgs potential is currently the least explored part of the SM. The shape of the Higgs potential depends on the Higgs self-coupling (λHHH), which is a parameter that defines how the Higgs interacts with itself. Measuring the Higgs self-coupling, and therefore the shape of the Higgs potential will arguably be the most important result at the LHC since the Higgs discovery.

We can directly access the Higgs self-coupling by studying the production of pairs of Higgs bosons (HH) at the LHC. Besides the Higgs self-coupling, the HH production allows us to constraint a variety of SM and physics beyond the Standard Model (BSM) parameters. HH searches are also an excellent channel for direct searches for BSM physics. In this talk, I will give an overview of the HH searches at the LHC in Run 2.

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Seminario CFP, hibrido: Edificio 2, Sala Maria de Maeztu / Zoom

Coordenadas zoom:  https://cern.zoom.us/j/98768015328, pass 092020