Claudia Frugiuele

Making the sneutrino a Higgs particle with aU(1)Rlepton number

We present a supersymmetric extension of the Standard Model that posseses a continuous

Dirac gauginos, R symmetry and the 125 GeV Higgs

U(1)_R

Phenomenology of relaxion-Higgs mixing

symmetry, which is identified with one of three lepton numbers, and where a sneutrino vev gives mass to the down type quark and leptons. This idea allows for a smaller particle content than the minimal

“L = R” — U(1)R as the origin of leptonic ‘RPV’

R

Mixing stops at the LHC

-symmetric supersymmetry extension of the standard model (MRSSM). We explore bounds on this model coming from electroweak precision measurements, neutrino masses and gravitino decay. Bounds from electroweak precision measurements lead to a two-sided bound on

“L = R” - U(1)R lepton number at the LHC

tan beta

Hidden GeV-Scale Interactions of Quarks

while gravitino decay forces a low reheating temperature. Finally, the generation of neutrino masses from

Constraining New Physics Models with Isotope Shift Spectroscopy

R

Testing minimal flavor violation in leptoquark models of the \( {R_K}_{{}^{\left(\ast \right)}} \) anomaly

-symmetry violation put an upper bound on the SUSY breaking scale. Despite all of this, we find that the allowed parameter space is still large and would lead to a distinctive phenomenology at the LHC.

Fermion hierarchy from sfermion anarchy

A bstractWe study a supersymmetric scenario with a quasi exact R-symmetry in light of the discovery of a Higgs resonance with a mass of 125 GeV. In such a framework, the additional adjoint superfields, needed to give Dirac masses to the gauginos, contribute both to the Higgs mass and to electroweak precision observables. We analyze the interplay between the two aspects, finding regions in parameter space in which the contributions to the precision observables are under control and a 125 GeV Higgs boson can be accommodated. We estimate the fine-tuning of the model finding regions of the parameter space still unexplored by the LHC with a fine-tuning considerably improved with respect to the minimal supersymmetric scenario. In particular, sizable non-holomorphic (non-supersoft) adjoints masses are required to reduce the fine-tuning.