Measurement of Electron Neutrino and Antineutrino Appearance with the NO{$$\nu$$}A Experiment
Thesis/Dissertation
·
OSTI ID:1712756
- IIT, Chicago
As a long-baseline neutrino oscillation experiment, the NuMI Off-axis $$\nu_e$$ Appearance (NOvA) experiment aims at studying neutrino physics by measuring neutrino oscillation parameters using the neutrino flux from the Main Injector (NuMI) beam. It has two functionally identical detectors. The near detector is onsite at Fermi National Accelerator Laboratory. The far detector is 810 km away from the source of neutrinos and antineutrinos, at Ash River, Minnesota. At the near detector, muon neutrinos or antineutrinos, before significant oscillations take place, are used to correct the Monte Carlo simulation. At the far detector, the neutrino and antineutrino fluxes after significant oscillations have happened are measured and analyzed to study neutrino oscillation. The NOvA experiment is sensitive to the values of $$\sin^2{\theta_{23}}$$, $$\Delta m^2_{32}$$, and $$\delta_{CP}$$. The latest values from the NOvA 2020 analysis are as follows: $$\sin^2{\theta_{23}}= 0.57^{+0.03}_{-0.04}$$, $$\Delta m^2_{32} = (2.41 \pm 0.07)\times 10^{-3}$$\,eV$^2/c^4$, and $$\delta_{CP}=0.82\pi$$ with a wide 1$$\sigma$$ interval of uncertainty. My study is focused on the neutrino oscillation analysis with NOvA, including detector light model tuning, particle classification with convolutional neural network, electron neutrino and antineutrino energy reconstruction, and oscillation background estimation. Most of my studies have been used in the latest NOvA publication and the NOvA 2020 analysis.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1712756
- Report Number(s):
- FERMILAB-THESIS-2020-15; oai:inspirehep.net:1828890
- Country of Publication:
- United States
- Language:
- English
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