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Flavour and Higgs physics near the Fermi scale
Filippo Sala
After a discussion of the hierarchy problem of the Fermi scale, we study the flavour and Higgs boson(s) phenomenology of new physics close to it, both in general and in the specifi…
A bound on the charm chromo-EDM and its implications
Filippo Sala
We derive bounds on the electric and chromo-electric dipole moments of the charm quark. The second one turns out to be particularly strong, and we quantify its impact on models tha…
One or more Higgs bosons?
Riccardo Barbieri, Dario Buttazzo, Kristjan Kannike +2
Now that one has been found, the search for signs of more scalars is a primary task of current and future experiments. In the motivated hypothesis that the extra Higgs bosons of th…
Investigating the near-criticality of the Higgs boson
Dario Buttazzo, Giuseppe Degrassi, Pier Paolo Giardino +4
We extract from data the parameters of the Higgs potential, the top Yukawa coupling and the electroweak gauge couplings with full 2-loop NNLO precision, and we extrapolate the SM p…
Exploring the Higgs sector of a most natural NMSSM
Riccardo Barbieri, Dario Buttazzo, Kristjan Kannike +2
The Next to Minimal Supersymmetric Standard Model (NMSSM) with a Higgs-singlet coupling λ close to unity, moderate tan β and stop masses below 1 TeV minimizes the fine tuning of th…