IPA Colloquium HS25

Tuesday 30 Sept 2025, 12:00 → 13:00 Europe/Zurich

40/R-C10 (CERN)

Davide Sgalaberna (ETH Zurich (CH))

Please note the DIFFERENT ROOM 40-R-C10

12:05 → 13:00 Talk

12:05 The physics of neutrino flux: The NA61/SHINE neutrino program

Accelerator-based neutrino experiments require precise understanding of their neutrino flux, which in conventional beams originates from meson decays in flight. These mesons are produced in high-energy hadron-nucleus interactions in extended targets. The cross sections and particle yields of the primary and secondary hadronic processes involved are generally poorly measured, making hadron production the leading systematic uncertainty source on neutrino flux at all major experimental neutrino facilities. The NA61/SHINE (SPS Heavy Ion and Neutrino Experiment) multi-particle spectrometer at CERN has established a dedicated program to make precise measurements of hadron production processes for neutrino beams, and has taken data on processes important for both T2K and the Fermilab long-baseline neutrino program. Future prospects include a low-energy beam that could provide input to atmospheric neutrino models as well as to a new set of neutrino experiments.

Speaker: Eric Daniel Zimmerman (University of Colorado Boulder (US))