Neutrino Tridents: A Powerful Probe of New Physics with Neutrino Beams

by Wolfgang Altmannshofer (University of California, Santa Cruz)

Monday 7 Apr 2025, 14:30 → 16:00 Europe/Rome

Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

Neutrino trident production refers to the production of a lepton anti-lepton pair from the scattering of a neutrino in the Coulomb field of a heavy nucleus. This is an extremely rare process and a sensitive probe of new interactions between leptons and neutrinos that can put strong constraints on well-motivated and well-hidden extensions of the Standard Model. In this talk, I will discuss how we make precision predictions of neutrino trident production in the Standard Model, explain why this process is highly sensitive to new physics, review the history of past experimental searches for neutrino tridents, and outline the prospects of discovering neutrino tridents at future experiments, in particular the Deep Underground Neutrino Experiment (DUNE) and a new forward detector at the Large Hadron Collider, FASERnu2.