Oct 24 – 29, 2022
Hoam Faculty House at Seoul National University, Seoul, KOREA
Asia/Seoul timezone

Measurements of electron neutrino interactions at the NOvA near detector

Oct 24, 2022, 2:25 PM
20m
Convention Center (Hoam Faculty House at Seoul National University, Seoul, KOREA)

Convention Center

Hoam Faculty House at Seoul National University, Seoul, KOREA

Seoul National University Hoam Faculty House 1 Gwanak-ro, Gwanak-Gu, Seoul, Korea

Speaker

Derek Doyle (Colorado State University)

Description

NOvA is a long-baseline neutrino oscillation experiment designed to measure the $\nu_\mu\rightarrow\nu_e$ and $\bar\nu_\mu\rightarrow\bar\nu_e$ oscillation rates for subsequent extraction of the oscillation parameters of the 3-flavor PMNS model. The NOvA detectors are exposed to Fermilab's NuMI beam, the most powerful accelerator-based neutrino beam in the world. In addition to producing competitive measurements oscillation parameters, the intense neutrino flux from NuMI enables a rich Near Detector (ND) physics program in the range of 1 - 10 GeV of neutrino energy.

The (anti)neutrino flux from NuMI at the Near Detector (ND) is composed of 95%(92%) muon- and 1%(1%) electron-type, respectively, at an average energy of 2 GeV. The NOvA detectors are functionally-identical tracking calorimeters that sit 14 mRad off-axis from the NuMI beam line. Extruded PVC modules filled with liquid scintillator make up the active mass of the detectors, which are composed mostly of CH$_2$. The detectors' composition and configuration are designed to maximize electron/muon separation capabilities and sensitivity to the leptonic CP-violating phase, $\delta_{CP}$.

NOvA's energy range and heavy nuclear targets offer a unique opportunity to study the nuclear effects of $\nu-A$ interactions with high statistics (anti-)$\nu_\mu$ and (anti-)$\nu_e$ samples. We present three measurements of electron neutrino interaction channels in the NOvA ND: (1) recently published results of the first-ever double-differential charged-current (CC) inclusive electron neutrino cross section featuring a novel signal estimation procedure; (2) the status of a complementary double-differential CC inclusive electron antineutrino cross section with data-driven constraint of $\nu_e$ CC background; (3) and the status of a measurement of the elastic neutrino-electron scattering rate with the potential to constrain the flux uncertainties from the NuMI beam.

Primary author

Derek Doyle (Colorado State University)

Presentation materials