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Title: Escaping Events at the NOvA Far Detector

Abstract

aThe NuMI Off-axis $$\nu_e$$ Appearance (NOvA) experiment studies neutrino oscillations in the NuMI (Neutrinos at the Main Injector) beam. The goal of the experiment is to determine the mass hierarchy and measure $$\delta_{CP}$$, however it is also sensitive to $$\sin\theta_{23}$$, and $$\Delta m^2_{32}$$. The present work tries to improve experimental sensitivity to the oscillation parameters by considering neutrino events which are discarded by the previous analysis - escaping events. The biggest issues with the escaping sample are significant cosmic background and correct energy estimation. Both issues were addressed and inclusion of escaping sample to the final fit led to an effective increase of statistics by 4% with best- fit measurements of $$\sin\theta^2_{23} = 0.504$$ and $$\Delta m^2_{32} = 2.45 \times 10^{-3}$$ eV$^2$.

Authors:
 [1]
  1. Minnesota U.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1529332
Report Number(s):
FERMILAB-THESIS-2018-32
1740226
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Bychkov, Vladimir. Escaping Events at the NOvA Far Detector. United States: N. p., 2018. Web. doi:10.2172/1529332.
Bychkov, Vladimir. Escaping Events at the NOvA Far Detector. United States. doi:10.2172/1529332.
Bychkov, Vladimir. Mon . "Escaping Events at the NOvA Far Detector". United States. doi:10.2172/1529332. https://www.osti.gov/servlets/purl/1529332.
@article{osti_1529332,
title = {Escaping Events at the NOvA Far Detector},
author = {Bychkov, Vladimir},
abstractNote = {aThe NuMI Off-axis $\nu_e$ Appearance (NOvA) experiment studies neutrino oscillations in the NuMI (Neutrinos at the Main Injector) beam. The goal of the experiment is to determine the mass hierarchy and measure $\delta_{CP}$, however it is also sensitive to $\sin\theta_{23}$, and $\Delta m^2_{32}$. The present work tries to improve experimental sensitivity to the oscillation parameters by considering neutrino events which are discarded by the previous analysis - escaping events. The biggest issues with the escaping sample are significant cosmic background and correct energy estimation. Both issues were addressed and inclusion of escaping sample to the final fit led to an effective increase of statistics by 4% with best- fit measurements of $\sin\theta^2_{23} = 0.504$ and $\Delta m^2_{32} = 2.45 \times 10^{-3}$ eV$^2$.},
doi = {10.2172/1529332},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {1}
}

Thesis/Dissertation:
Other availability
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