13 papers
The Dark Side of a Tera-Z Factory
Pablo Olgoso, Paride Paradisi, Nudzeim Selimovic
The future circular collider (FCC-ee or CEPC) will provide unprecedented sensitivity to indirect new physics signals emerging as small deviations from the Standard Model p…
Neutron Star Bounds on Muonic Fifth Forces from Picometer to Kilometer Scales
Damiano F. G. Fiorillo, Alessandro Lella, Georg G. Raffelt +2
Experimental searches for fifth forces coupled to muons are fundamentally limited by the scarcity of muons in ordinary matter, whereas neutron stars contain abundant muon populatio…
Production of Leptophilic Bosons in Ultradegenerate Relativistic Matter
Damiano F. G. Fiorillo, Alessandro Lella, Georg G. Raffelt +2
Neutron stars (NSs) are powerful factories for new particles with masses up to the 100 keV range. These compact stars contain significant populations of charged particles, notably…
Anomalous Dimension of a General Effective Gauge Theory II: Fermionic Sector
Jason Aebischer, Luigi C. Bresciani, Nudzeim Selimovic
The complete set of one-loop anomalous dimensions for general Effective Field Theories (EFTs) is derived using on-shell methods. Combined with previous findings for the bosonic sec…
Hunting for a 17 MeV particle coupled to electrons
Luca Di Luzio, Paride Paradisi, Nudzeim Selimovic
We discuss a set of precision observables that can probe the existence of a light particle coupled to electrons in the mass range of 1-100 MeV. As a case study, we consider the…
Anarchic neutrinos from flavor deconstruction: phenomenology of the lepton sector
Gino Isidori, Paride Paradisi, Andrea Sainaghi +1
We investigate the neutrino sector in the framework of flavor deconstruction with an inverse-seesaw realization. This setup naturally links the hierarchical charged-fermion masses…