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Title: New constraints on oscillation parameters from {nu}e appearance and {nu}{mu} disappearance in the NOvA experiment

Abstract

We present updated results from the NOvA experiment for v(mu) -> v(mu) and v(mu) -> v(e) oscillations from an exposure of 8.85 x 10(20) protons on target, which represents an increase of 46% compared to our previous publication. The results utilize significant improvements in both the simulations and analysis of the data. A joint fit to the data for v(mu) disappearance and v(e) appearance gives the best-fit point as normal mass hierarchy, Delta m(32)(2) = 2.44 x 10(-3) eV(2)/c(4), sin(2) theta(23) = 0.56, and delta(CP) = 1.21 pi. The 68.3% confidence intervals in the normal mass hierarchy are Delta m(32)(2) is an element of[2.37, 2.52] x 10(-3) eV(2)/c(4) , sin(2) theta(23) is an element of [0.43; 0.51] boolean OR [0.52; 0.60], and delta(CP) is an element of [0, 0.21 pi] boolean OR [0.91 pi, 2 pi]. The inverted mass hierarchy is disfavored at the 95% confidence level for all choices of the other oscillation parameters.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of High Energy Physics; National Science Foundation (NSF); India Department of Science and Technology
OSTI Identifier:
1577436
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 98; Journal Issue: 3
Country of Publication:
United States
Language:
English

Citation Formats

Acero, M. A., Adamson, P, Aliaga, L., Alion, T., Allakhverdian, V., Anfimov, N., Antoshkin, A., Arrieta-Diaz, Enrique, Aurisano, A., Back, A., Dharmapalan, R., Djurcic, Z., Goodman, M. C., Magill, S., and Talaga, R. L. New constraints on oscillation parameters from {nu}e appearance and {nu}{mu} disappearance in the NOvA experiment. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.98.032012.
Acero, M. A., Adamson, P, Aliaga, L., Alion, T., Allakhverdian, V., Anfimov, N., Antoshkin, A., Arrieta-Diaz, Enrique, Aurisano, A., Back, A., Dharmapalan, R., Djurcic, Z., Goodman, M. C., Magill, S., & Talaga, R. L. New constraints on oscillation parameters from {nu}e appearance and {nu}{mu} disappearance in the NOvA experiment. United States. doi:10.1103/PhysRevD.98.032012.
Acero, M. A., Adamson, P, Aliaga, L., Alion, T., Allakhverdian, V., Anfimov, N., Antoshkin, A., Arrieta-Diaz, Enrique, Aurisano, A., Back, A., Dharmapalan, R., Djurcic, Z., Goodman, M. C., Magill, S., and Talaga, R. L. Fri . "New constraints on oscillation parameters from {nu}e appearance and {nu}{mu} disappearance in the NOvA experiment". United States. doi:10.1103/PhysRevD.98.032012.
@article{osti_1577436,
title = {New constraints on oscillation parameters from {nu}e appearance and {nu}{mu} disappearance in the NOvA experiment},
author = {Acero, M. A. and Adamson, P and Aliaga, L. and Alion, T. and Allakhverdian, V. and Anfimov, N. and Antoshkin, A. and Arrieta-Diaz, Enrique and Aurisano, A. and Back, A. and Dharmapalan, R. and Djurcic, Z. and Goodman, M. C. and Magill, S. and Talaga, R. L.},
abstractNote = {We present updated results from the NOvA experiment for v(mu) -> v(mu) and v(mu) -> v(e) oscillations from an exposure of 8.85 x 10(20) protons on target, which represents an increase of 46% compared to our previous publication. The results utilize significant improvements in both the simulations and analysis of the data. A joint fit to the data for v(mu) disappearance and v(e) appearance gives the best-fit point as normal mass hierarchy, Delta m(32)(2) = 2.44 x 10(-3) eV(2)/c(4), sin(2) theta(23) = 0.56, and delta(CP) = 1.21 pi. The 68.3% confidence intervals in the normal mass hierarchy are Delta m(32)(2) is an element of[2.37, 2.52] x 10(-3) eV(2)/c(4) , sin(2) theta(23) is an element of [0.43; 0.51] boolean OR [0.52; 0.60], and delta(CP) is an element of [0, 0.21 pi] boolean OR [0.91 pi, 2 pi]. The inverted mass hierarchy is disfavored at the 95% confidence level for all choices of the other oscillation parameters.},
doi = {10.1103/PhysRevD.98.032012},
journal = {Physical Review D},
number = 3,
volume = 98,
place = {United States},
year = {2018},
month = {8}
}

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