Neutrino Trident Scattering at Near Detectors

Understand

Neutrino trident scattering is a rare Standard Model process where a charged-lepton pair is produced in neutrino-nucleus scattering.

• To date, only the dimuon final-state has been observed, with around 100 total events, while the other channels are as yet unexplored.
• In this work, we compute the trident production cross section by performing a complete four-body phase space calculation for different hadronic targets.
• This provides a correct estimate both of the coherent and the diffractive contributions to these cross sections, but also allows us to address certain inconsistencies in the literature related to the use of the Equivalent Photon Approximation in this context.