407 citations · 3.8k across the 48 of their papers we have counts for
22 papers · 1 filter
The Quest for the Nature of the Dark Matter: The Need of a New Paradigm
Fabrizio Nesti, Paolo Salucci, Nicola Turini
The phenomenon of the Dark matter baffles the researchers: the underlying dark particle has escaped so far the detection and its astrophysical role appears complex and entangled wi…
Left-Right Symmetry at FCC-hh
Miha Nemevšek, Fabrizio Nesti
We study the production of right-handed bosons and heavy neutrinos at a future 100 TeV high energy hadron collider in the context of Left-Right symmetry, including the ef…
Axion-mediated forces, CP violation and left-right interactions
Stefano Bertolini, Luca Di Luzio, Fabrizio Nesti
We compute the CP-violating (CPV) scalar axion coupling to nucleons in the framework of baryon chiral perturbation theory and we apply the results to the case of left-right symmetr…
Kaon CP violation and neutron EDM in the minimal left-right symmetric model
Stefano Bertolini, Alessio Maiezza, Fabrizio Nesti
Within the minimal Left-Right (LR) symmetric model we revisit the predictions for the kaon CP violating observables and in correlation with the neutron…
Keung-Senjanović process at LHC: from LNV to displaced vertices to invisible decays
Miha Nemevšek, Fabrizio Nesti, Goran Popara
In the context of Left-Right symmetry, we revisit the Keung-Senjanović production of right-handed bosons and heavy neutrinos at high energy colliders. We develop a multi-…
Majorana Higgses at colliders
Miha Nemevšek, Fabrizio Nesti, Juan Carlos Vasquez
Collider signals of heavy Majorana neutrino mass origin are studied in the minimal Left-Right symmetric model, where their mass is generated spontaneously together with the breakin…
Perturbativity and mass scales of Left-Right Higgs bosons
Alessio Maiezza, Miha Nemevšek, Fabrizio Nesti
The scalar sector of the minimal Left-Right model at TeV scale is revisited in light of the large quartic coupling needed for a heavy flavor-changing scalar. The stability and pert…
Lepton Number Violation in Higgs Decay at LHC
Alessio Maiezza, Miha Nemevsek, Fabrizio Nesti
We show that within the Left-Right symmetric model, lepton number violating decays of the Higgs boson can be discovered at the LHC. The process is due to the mixing of the Higgs wi…
Present and Future K and B Meson Mixing Constraints on TeV Scale Left-Right Symmetry
Stefano Bertolini, Alessio Maiezza, Fabrizio Nesti
We revisit the transitions in the and neutral meson systems in the context of the minimal Left-Right symmetric model. We take into account, in addition to up-t…
K to ππ hadronic matrix elements of left-right current-current operators
Stefano Bertolini, Alessio Maiezza, Fabrizio Nesti
Effective ΔS=1 four fermion operators involving left- and right-handed currents are relevant in left-right gauge extensions of the standard model and scalar extension of the Yukawa…
New physics in ε' from chromomagnetic contributions and limits on Left-Right symmetry
Stefano Bertolini, Jan O. Eeg, Alessio Maiezza +1
New physics in the chromomagnetic flavor changing transition s->dg* can avoid the strong GIM suppression of the Standard Model and lead to large contributions to CP-violating obser…
Neutrinoless Double Beta Decay: Low Left-Right Symmetry Scale?
Miha Nemevsek, Fabrizio Nesti, Goran Senjanovic +1
Experiments in progress may confirm a nonzero neutrinoless double beta decay rate in conflict with the cosmological upper limit on neutrino masses and thus require new physics beyo…
Type II Seesaw at LHC: the Roadmap
Alejandra Melfo, Miha Nemevsek, Fabrizio Nesti +2
In this Letter we revisit the type-II seesaw mechanism based on the addition of a weak triplet scalar to the standard model. We perform a comprehensive study of its phenomenology a…
Inert Doublet Dark Matter and Mirror/Extra Families after Xenon100
Alejandra Melfo, Miha Nemevsek, Fabrizio Nesti +2
It was shown recently that mirror fermions, naturally present in a number of directions for new physics, seem to require an inert scalar doublet in order to pass the electroweak pr…
First Limits on Left-Right Symmetry Scale from LHC Data
Miha Nemevsek, Fabrizio Nesti, Goran Senjanović +1
We use the early Large Hadron Collider data to set the lower limit on the scale of Left-Right symmetry, by searching for the right-handed charged gauge boson via the final st…
Three Extra Mirror or Sequential Families: a Case for Heavy Higgs and Inert Doublet
Homero Martínez, Alejandra Melfo, Fabrizio Nesti +1
We study the possibility of the existence of extra fermion families and an extra Higgs doublet. We find that requiring the extra Higgs doublet to be inert leaves space for three ex…
Left-Right Symmetry: from LHC to Neutrinoless Double Beta Decay
Vladimir Tello, Miha Nemevsek, Fabrizio Nesti +2
The Large Hadron Collider has a potential to probe the scale of left-right symmetry restoration and the associated lepton number violation. Moreover, it offers hope of measuring th…
Left-Right Symmetry at LHC
Alessio Maiezza, Miha Nemevsek, Fabrizio Nesti +1
We revisit the issue of the limit on the scale of Left-Right symmetry breaking. We focus on the minimal SU(2)_L x SU(2)_R x U(1)_B-L gauge theory with the seesaw mechanism and disc…
Flavour physics of leptons and dipole moments
M. Raidal, A. van der Schaaf, I. Bigi +82
This chapter of the report of the ``Flavour in the era of the LHC'' Workshop discusses the theoretical, phenomenological and experimental issues related to flavour phenomena in the…
Fermion Masses at intermediate Tan(beta): Unification of Yukawa Determinants
F. Nesti
In the context of the Grand Unified MSSM, we investigate the fermion mass matrices at GUT scale. We note that from the experimental mass pattern the determinants of the Yukawa matr…
Soft SUSY breaking contributions to proton decay
Zurab Berezhiani, Fabrizio Nesti, Luigi Pilo
We show that in supersymmetric grand unified theories new effective D=4 and D=5 operators for proton decay are induced by soft SUSY-breaking terms, when heavy GUT gauge bosons are…
Supersymmetric SO(10) for fermion masses and mixings: rank-1 structures of flavour
Z. Berezhiani, F. Nesti
We consider a supersymmetric SO(10) model with a SU(3) symmetry of flavour in which fermion masses emerge via the see-saw mixing with superheavy fermions in 16+16bar representation…