Zoom: Please see the email announcement for zoom link.
Meeting room at FNAL: Gold Mine (WH13SE)
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
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