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A possible interpretation of the LUX-ZEPLIN recoil event in the 2HD+a scenario
Giorgio Arcadi, Mattia di Mauro, Abdelhak Djouadi +1
It is tantalizing to consider the recent observation of the LUX-ZEPLIN (LZ) experiment of a high energy nuclear recoil candidate at keV as the long-awai…
Charting Dark Matter down to the neutrino floor/fog in the 2HD+a scenario
Giorgio Arcadi, Abdelhak Djouadi, Stefano Profumo
Next-generation direct detection experiments will probe dark matter (DM) scattering cross-sections deep into the neutrino fog, the regime where coherent neutrino scattering becomes…
Interpreting the current Higgs excesses at the LHC in the 2HD+a framework
Giorgio Arcadi, Abdelhak Djouadi
There are several excesses of events in current LHC data, yet not exceeding the level of significance which would make them to be considered as firm. They point to the possibility…
Contrasting Pseudoscalar Higgs and Toponium States at the LHC and Beyond
Abdelhak Djouadi, John Ellis, Jeremie Quevillon
We discuss ways to discriminate at hadron colliders between a quasi-bound toponium state and a pseudoscalar Higgs boson A, as predicted in many extensions of the Standard Model. We…
Steven Weinberg and Higgs Physics
Abdelhak Djouadi, José Ignacio Illana
As a tribute to Steven Weinberg, we summarize the immense impact that he had on the understanding of the mechanism of spontaneous symmetry breaking and on the physics of the Higgs…
Iteration on the Higgs-portal for vector Dark Matter and its effective field theory description
Giorgio Arcadi, Juan Carlos Criado, Abdelhak Djouadi
We reanalyze the effective field theory (EFT) approach for the scenario in which the particles that account for the dark matter (DM) in the universe are vector states that interact…