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In the context of neutrinos, the Large Extra Dimension (LED) model proposes the presence of a right-handed neutrino in a fifth dimension to account for small, non-zero neutrino masses. In this work, we have shown the effect of LED parameters, the LED compactification radius ( \(R_{ED}\) ) and smallest neutrino mass \(m_0\) in the future experiments like P2SO, and the combination of DUNE, T2HK and P2SO. Our results indicate that P2SO provides a stronger constraint on \(R_{ED}\) at the \(90\%\) confidence level (C.L.) compared to DUNE and T2HK. Furthermore, the synergy between DUNE, T2HK, and P2SO yields even tighter bounds on \(R_{ED}\) at the \(90\%\) C.L. than P2SO alone. In our work, we have also shown the effect of \(R_{ED}\) on the sensitivity of CP violation, mass hierarchy and octant of atmospheric angle.

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Effect of Large Extra Dimension in Future Long Baseline Neutrino Experiments

  • 会议论文

  • 发表日期：

    2025年

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  • Papia Panda,
  • Samiran Roy,
  • Monojit Ghosh,
  • Rukmani Mohanta

摘要

In the context of neutrinos, the Large Extra Dimension (LED) model proposes the presence of a right-handed neutrino in a fifth dimension to account for small, non-zero neutrino masses. In this work, we have shown the effect of LED parameters, the LED compactification radius ( \(R_{ED}\) ) and smallest neutrino mass \(m_0\) in the future experiments like P2SO, and the combination of DUNE, T2HK and P2SO. Our results indicate that P2SO provides a stronger constraint on \(R_{ED}\) at the \(90\%\) confidence level (C.L.) compared to DUNE and T2HK. Furthermore, the synergy between DUNE, T2HK, and P2SO yields even tighter bounds on \(R_{ED}\) at the \(90\%\) C.L. than P2SO alone. In our work, we have also shown the effect of \(R_{ED}\) on the sensitivity of CP violation, mass hierarchy and octant of atmospheric angle.