Conveners
BSM Higgs physics 3 - sal IX
- Eleni Vryonidou (The University of Manchester (GB))
- Rafael Coelho Lopes De Sa (University of Massachusetts (US))
- Daniel Winterbottom (Imperial College (GB))
-
Henning Bahl06/11/2024, 09:00BSM Higgs physics
Various extensions of the Standard Model predict the existence of additional Higgs bosons. If these additional Higgs bosons are sufficiently heavy, an important search channel is the di-top final state. In this channel, interference contributions between the signal and the corresponding QCD background process are expected to be important. If more than one heavy scalar is present, besides the...
Go to contribution page -
Sumit Banik (University of Zurich & PSI)06/11/2024, 09:20BSM Higgs physics
Statistically significant excesses exist at around $152$ GeV in associated di-photon production contained in the sidebands of SM Higgs analyses. They are most pronounced in the $\gamma \gamma + \tau$, $\gamma \gamma + \text{MET}$, $\gamma \gamma + \geq 1 \ell +\geq 1b$, $\gamma \gamma + 4 j$ signal regions, and can be explained by the Drell-Yan production of new Higgs bosons, i.e. $p p \to W...
Go to contribution page -
Guglielmo Coloretti (University of Zurich (UZH) / Paul Scherrer Institute (PSI))06/11/2024, 09:40BSM Higgs physics
Recently, statistically significant excesses in inclusive and associated di-photon searches have been observed at the LHC, accumulating at around $95$ GeV and $152$ GeV, respectively. In this context, I will argue how the most general CP-violating 2HDM in the Yukawa alignment limit can account for these observations. In the Higgs basis, where the two scalar doublets are identified as $H_1$ and...
Go to contribution page -
Dr Jayita Lahiri (II. Theoretical Institute for Physics, University of Hamburg)06/11/2024, 10:00BSM Higgs physics
We explore the possibility of CP-violation in the complex-singlet extension of 2HDM. The addition of complex singlet paves the way for additional sources of CP-violation compared to 2HDM. If a Z2-symmetry is imposed on the complex-singlet, it can accommodate a dark matter candidate as well. We identify the regions of parameter space, that can fit DM observables and at the same time generate...
Go to contribution page -
Subrata Samanta (Indian Institute of Technology Kanpur)06/11/2024, 10:20BSM Higgs physics
Minimal triplet scalar extension of the Standard Model demanding custodial symmetry gives rise to a new model, the extended Georgi-Machacek (eGM) model, not the well-known Georgi-Machacek (GM) model. In this talk, I will discuss the theoretical bounds on the model parameter space, such as next-to-leading order unitarity and state-of-the-art bounded from below conditions on the potential...
Go to contribution page