Snowmass 2021 LoI: Neutrino-induced Shallow- and Deep-Inelastic Scattering

9 Sep 2020 · L. Alvarez-Ruso, A. M. Ankowski, M. Sajjad Athar, C. Bronner, L. Cremonesi, K. Duffy, S. Dytman, A. Friedland, A. P. Furmanski, K. Gallmeister, S. Gardiner, W. T. Giele, N. Jachowicz, H. Haider, M. Kabirnezhad, T. Katori, A. S. Kronfeld, S. W. Li, J. G. Morfín, U. Mosel, M. Muether, A. Norrick, J. Paley, V. Pandey, R. Petti, L. Pickering, B. J. Ramson, M. H. Reno, T. Sato, J. T. Sobczyk, J. Wolcott, C. Wret, T. Yang ·

In neutrino interactions with nucleons and nuclei, Shallow Inelastic Scattering (SIS) refers to processes, dominated by non-resonant contributions, in the kinematic region where $Q^2$ is small and the invariant mass of the hadronic system, $W$, is above the pion production threshold. The extremely rich science of this complex region, poorly understood both theoretically and experimentally, encompasses the transition from interactions described in terms of hadronic degrees of freedom to interactions with quarks and gluons described by perturbative QCD. Since a large fraction of events in NOvA and DUNE, and in atmospheric neutrino measurements such as IceCube-Upgrade, KM3NeT, Super- and Hyper-Kamiokande, are from this SIS region, there is a definite need to improve our knowledge of this physics. This LoI summarizes the current understandings of the SIS physics and a series of proposals for the path to forward.

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Snowmass 2021 LoI: Neutrino-induced Shallow- and Deep-Inelastic Scattering

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