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Effect of Sterile Phases on Degeneracy Resolution Capabilities of LBL Experiments

Abstract

In sterile neutrino (\(3+1\)) parameterization, we observe that sterile phases (\(\delta_{14}\), \(\delta_{24}\)) are always together in oscillation probability, even when the MSW effect is considered. We see that the difference between the sterile phases has a more dominating effect over event rates compared to small variations due to changes in individual values. In this work, we show the value of sterile phase difference (\(\delta_{14}-\delta_{24}\)) that least affects the parameter degeneracy resolution of \(\delta_{13}\), \(\theta_{23}\) at long-baseline experiments.

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Correspondence to Akshay Chatla or Bindu A Bambah.

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Chatla, A., Bambah, B.A. Effect of Sterile Phases on Degeneracy Resolution Capabilities of LBL Experiments. Phys. Atom. Nuclei 84, 377–380 (2021). https://doi.org/10.1134/S106377882103008X

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