Improved precision on 2-3 oscillation parameters using the synergy between DUNE and T2HK ...

A high-precision measurement of $Δm^2_{31}$ and $θ_{23}$ is inevitable to estimate the Earth's matter effect in long-baseline experiments which in turn plays an important role in addressing the issue of neutrino mass ordering and to measure the value of CP phase in $3ν$ framework. After reviewi...

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Bibliographic Details
Main Authors: Agarwalla, Sanjib Kumar, Kundu, Ritam, Singh, Masoom
Format: Article in Journal/Newspaper
Language:unknown
Published: arXiv 2024
Subjects:
Online Access:https://dx.doi.org/10.48550/arxiv.2408.12735
https://arxiv.org/abs/2408.12735
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Summary:A high-precision measurement of $Δm^2_{31}$ and $θ_{23}$ is inevitable to estimate the Earth's matter effect in long-baseline experiments which in turn plays an important role in addressing the issue of neutrino mass ordering and to measure the value of CP phase in $3ν$ framework. After reviewing the results from the past and present experiments, and discussing the near-future sensitivities from the IceCube Upgrade and KM3NeT/ORCA, we study the expected improvements in the precision of 2-3 oscillation parameters that the next-generation long-baseline experiments, DUNE and T2HK, can bring either in isolation or combination. We highlight the relevance of the possible complementarities between these two experiments in obtaining the improved sensitivities in determining the deviation from maximal mixing of $θ_{23}$, excluding the wrong-octant solution of $θ_{23}$, and obtaining high precision on 2-3 oscillation parameters, as compared to their individual performances. We observe that for the current best-fit ... : 28 pages, 11 figures, and 4 tables. Comments are welcome ...