Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session J12: Mini-Symposium: Constraining the Neutrino-nucleus Interaction for Neutrino Oscillations IFocus
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Sponsoring Units: DNP DPF Chair: Alex Himmel, Fermilab Room: Sheraton Plaza Court 1 |
Sunday, April 14, 2019 1:30PM - 2:06PM |
J12.00001: Constraining the neutrino-nucleus interaction for neutrino oscillations Invited Speaker: Minerba Betancourt Accurate neutrino cross-section measurements and the modeling of nuclear effects are required for precise measurements of neutrino oscillation physics, such as CP-violation and the ordering of the neutrino masses. Significant model discrepancies are observed from different neutrino cross section measurements in numerous experiments. This talk will review the various efforts to constrain neutrino-nucleus interactions, including different cross section measurements, reanalysis of the bubble chamber data, and a new effort from electron scattering to constrain neutrino iteration modeling. |
Sunday, April 14, 2019 2:06PM - 2:18PM |
J12.00002: Progress towards the extraction of exclusive ν μ -Ar CCQEcross sections using the MicroBooNE LArTPC detector Afroditi Papadopoulou Next generation neutrino oscillation experiments aim towards a high-precision extraction of the |
Sunday, April 14, 2019 2:18PM - 2:30PM |
J12.00003: Inclusive and Exclusive Electron Scattering on 40Ar and 48Ti to Aid Precision Neutrino Oscillation Experiments Daniel L Abrams E12-14-012 at Jefferson Lab was conducted to measure the 40Ar spectral function, S(k,E), through coincidence electron scattering 40Ar(e,e′p). S(k,E) yields the probability of removing a nucleon of momentum k = |k| from the nuclear ground state, leaving the residual nuclear system with excitation energy E. E12-14-012 collected coincidence data from 40Ar and 48Ti, as well as inclusive data (e,e′) from 12C, 48Ti and 40Ar. Upcoming neutrino oscillation experiments, such as DUNE, will use Liquid Argon Time Projection Chamber (LArTPC) detectors, and hence an understanding of the argon nuclear ground state and its response to neutrino interactions is essential. A direct measurement of the coincidence (e,e′p) cross section on argon will provide the experimental input necessary to constrain the theoretical models used to calculate S(k,E), thus paving the way for a reliable estimate of the neutrino cross sections. After a brief introduction to the motivation and experimental details, the state of the analysis will be presented. |
Sunday, April 14, 2019 2:30PM - 2:42PM |
J12.00004: Tuning Neutrino-Nucleus Interactions for the NOvA Oscillation Measurements Gregory Pawloski One of the largest sources of systematic uncertainty for the NOvA oscillation measurements is from the modeling of the neutrino-nucleus interaction. By studying neutrino interactions in the NOvA Near Detector, the experiment can tune its GENIE-based simulation of neutrino events, particularly with respect to 2p2h events. The tuning procedure and observed features in the NOvA Near Detector data will be discussed. |
Sunday, April 14, 2019 2:42PM - 2:54PM |
J12.00005: Cross section tuning in NOvA Maria Martinez-Casales NOvA is a long baseline neutrino experiment based at Fermilab that studies neutrino oscillation parameters via electron neutrino appearance and muon neutrino disappearance. The oscillation measurements compare the Far Detector data to an oscillated prediction which accounts for the Near Detector (ND) data and our understanding of neutrino interactions and cross-sections by using GENIE simulation. By tuning the cross section model to better represent neutrino scattering data from NOvA’s ND and other experiments, we can extract oscillation parameters with a more accurate representation of cross section uncertainties. This tuning process is performed in the ND, before the oscillations occur. We present potential improvements to the cross section tune used for NOvA’s 2018 joint neutrino and antineutrino analysis. |
Sunday, April 14, 2019 2:54PM - 3:06PM |
J12.00006: Recent cross section measurements from T2K experiment Kendall Mahn Uncertainties on neutrino interactions with matter are important for current and future generation neutrino long baseline experiments, which infer neutrino mixing parameters. The Tokai-to-Kamioka experiment in Japan produces an intense neutrino and antineutrino source which impinges on multiple detectors located close to production. This talk will describe various open questions about neutrino interaction modelling and outstanding discrepancies between previous measurements, and recent measurements made by T2K of neutrino and antineutrino interactions which aim to answer those issues. |
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