2p2h from the Valencia Model Revisited

• Joanna Sobczyk (JGU Mainz)

In this talk I will present our new results for the 2p2h mechanism from a theoretical framework developed by the Valencia group. I will highlight several features, most importantly the exclusive-final-states of the outgoing nucleons and the assessment of theoretical uncertainty of our calculation. In the latest version of the model we treat in a consistent way the nucleon self-energy which introduces substantial changes in respect to the original version of the model. I will present the 2p2h mechanism it in a broader context of the Valencia model, but also delve into some more technical details. This talk will be based on the following papers: J.E.S., J. Nieves, "Neutrino and antineutrino charged-current multi-nucleon cross sections revisited" 2407.21587 J.E.S., J. Nieves, F.Sanchez, "Exclusive-final-state hadron observables from neutrino-nucleus multinucleon knockout'', Phys. Rev. C 102 (2020) no.2, 024601 J. Nieves, I. Ruiz Simo,M.J.Vicente Vacas, "Inclusive Charged--Current Neutrino--Nucleus Reactions" Phys. Rev. C 83 (2011), 045501

Measurement of double differential charged current muon neutrino scattering in three-momentum transfer and available energy using the NOvA Near Detector

• Travis Olson

This talk presents results of inclusive charged-current νµ-nucleus scattering results in three-momentum transfer and available energy. The measurements are based on an estimated 995,760 νµ CC interactions in the scintillator medium of the NOvA Near Detector. The subdomain populated by 2-particle-2-hole is by the cross-section excess relative to predictions for νµ-nucleus scattering that are constrained by a data control sample, and the full domain and restricted domain measured inclusive cross sections are compared to various models for the 2-particle-2-hole process. Resources: NOvA Measurement: https://arxiv.org/abs/2410.05526 MINERvA Measurement: https://arxiv.org/pdf/1511.05944 SuSA v2 GENIE 2p2h implementation: https://arxiv.org/pdf/1905.08556 Valencia model 2p2h: https://arxiv.org/pdf/1307.8105

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