Uncertainties in the oscillation parameters measurement due to multi-nucleon effects at NOνA experiment

In this work, we investigate the role of multi-nucleon (MN) effects (mainly 2p-2h and RPA) on the sensitivity measurement of various neutrino oscillation parameters, in the disappearance channel of NOνA (USA) experiment. Short-range correlations and detector effects have also been included in the an...

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Main Authors: Paramita Deka, Jaydip Singh, Neelakshi Sarma, Kalpana Bora
Format: Article
Language:English
Published: Elsevier 2022-10-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321322002541
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author Paramita Deka
Jaydip Singh
Neelakshi Sarma
Kalpana Bora
author_facet Paramita Deka
Jaydip Singh
Neelakshi Sarma
Kalpana Bora
author_sort Paramita Deka
collection DOAJ
description In this work, we investigate the role of multi-nucleon (MN) effects (mainly 2p-2h and RPA) on the sensitivity measurement of various neutrino oscillation parameters, in the disappearance channel of NOνA (USA) experiment. Short-range correlations and detector effects have also been included in the analysis. We use the kinematical method of reconstruction of the incoming neutrino energy, both at the near and far detectors. The extrapolation technique has been used to estimate oscillated events at the far detector. The latest global best fit values of various light neutrino oscillation parameters have been used in the analysis. We find that MN effects increase uncertainty in the measurement of neutrino oscillation parameters, while lower detector efficiency is reflected in more uncertainty. This study can give useful insight into precision studies at long-baseline neutrino experiments in future measurements.
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spelling doaj.art-9ec33750a2564d09850fb9386597f2552022-12-22T04:25:10ZengElsevierNuclear Physics B0550-32132022-10-01983115903Uncertainties in the oscillation parameters measurement due to multi-nucleon effects at NOνA experimentParamita Deka0Jaydip Singh1Neelakshi Sarma2Kalpana Bora3Department Of Physics, Gauhati University, Assam, IndiaDepartment Of Physics, Lucknow University, Uttar Pradesh, IndiaDepartment Of Physics, Gauhati University, Assam, IndiaDepartment Of Physics, Gauhati University, Assam, India; Corresponding author.In this work, we investigate the role of multi-nucleon (MN) effects (mainly 2p-2h and RPA) on the sensitivity measurement of various neutrino oscillation parameters, in the disappearance channel of NOνA (USA) experiment. Short-range correlations and detector effects have also been included in the analysis. We use the kinematical method of reconstruction of the incoming neutrino energy, both at the near and far detectors. The extrapolation technique has been used to estimate oscillated events at the far detector. The latest global best fit values of various light neutrino oscillation parameters have been used in the analysis. We find that MN effects increase uncertainty in the measurement of neutrino oscillation parameters, while lower detector efficiency is reflected in more uncertainty. This study can give useful insight into precision studies at long-baseline neutrino experiments in future measurements.http://www.sciencedirect.com/science/article/pii/S0550321322002541
spellingShingle Paramita Deka
Jaydip Singh
Neelakshi Sarma
Kalpana Bora
Uncertainties in the oscillation parameters measurement due to multi-nucleon effects at NOνA experiment
Nuclear Physics B
title Uncertainties in the oscillation parameters measurement due to multi-nucleon effects at NOνA experiment
title_full Uncertainties in the oscillation parameters measurement due to multi-nucleon effects at NOνA experiment
title_fullStr Uncertainties in the oscillation parameters measurement due to multi-nucleon effects at NOνA experiment
title_full_unstemmed Uncertainties in the oscillation parameters measurement due to multi-nucleon effects at NOνA experiment
title_short Uncertainties in the oscillation parameters measurement due to multi-nucleon effects at NOνA experiment
title_sort uncertainties in the oscillation parameters measurement due to multi nucleon effects at noνa experiment
url http://www.sciencedirect.com/science/article/pii/S0550321322002541
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