Electron Neutrino Appearance in the MINOS Experiment
Abstract
This thesis describes a search for v e appearance in the two-detector long-baseline MINOS neutrino experiment at Fermilab, based on a data set representing an exposure of 8.2×10 20 protons on the NuMI target. The analysis detailed herein represents an increase in sensitivity to the θ 13 mixing angle of approximately 25% over previous analyses, due to improvements in the event discriminant and fitting technique. Based on our observation, we constrain the value of θ 13 further, finding 2 sin 2θ 23 sin 2θ 13< 0.12(0.20) at the 90% confidence level for δ CP = 0 and the normal (inverted) neutrino mass hierarchy. The best-fit value is 2 sin 2θ 23 sin 2θ 13 = 0.041 +0.047 -0.031(0.079 +0.071 -0.053) under the same assumptions. We exclude the θ 13 = 0 hypothesis at the 89% confidence level.
- Authors:
-
- California Inst. of Technology (CalTech), Pasadena, CA (United States)
- 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:
- 1156435
- Report Number(s):
- FERMILAB-THESIS-2012-10
- 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
Orchanian, Mhair-armen Hagop. Electron Neutrino Appearance in the MINOS Experiment. United States: N. p., 2012.
Web. doi:10.2172/1156435.
Orchanian, Mhair-armen Hagop. Electron Neutrino Appearance in the MINOS Experiment. United States. doi:10.2172/1156435.
Orchanian, Mhair-armen Hagop. Sun .
"Electron Neutrino Appearance in the MINOS Experiment". United States. doi:10.2172/1156435. https://www.osti.gov/servlets/purl/1156435.
@article{osti_1156435,
title = {Electron Neutrino Appearance in the MINOS Experiment},
author = {Orchanian, Mhair-armen Hagop},
abstractNote = {This thesis describes a search for ve appearance in the two-detector long-baseline MINOS neutrino experiment at Fermilab, based on a data set representing an exposure of 8.2×1020 protons on the NuMI target. The analysis detailed herein represents an increase in sensitivity to the θ13 mixing angle of approximately 25% over previous analyses, due to improvements in the event discriminant and fitting technique. Based on our observation, we constrain the value of θ13 further, finding 2 sin2θ 23 sin2θ 13< 0.12(0.20) at the 90% confidence level for δCP = 0 and the normal (inverted) neutrino mass hierarchy. The best-fit value is 2 sin2θ 23 sin2θ 13 = 0.041+0.047 -0.031(0.079+0.071 -0.053) under the same assumptions. We exclude the θ 13 = 0 hypothesis at the 89% confidence level.},
doi = {10.2172/1156435},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2012},
month = {Sun Jan 01 00:00:00 EST 2012}
}