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arXiv · 1811.01210

Tensions between the appearance data of T2K and NOvA

Mohammad Nizam·Suman Bharti·Suprabh Prakash·Ushak Rahaman·S. Uma Sankar
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Abstract

The long baseline neutrino experiments, T2K and NOvA, have taken significant amount of data in each of the four channels: (a) $\nu_\mu$ disappearance, (b) $\bar\nu_\mu$ disappearance (c) $\nu_e$ appearance and (d) $\bar\nu_e$ appearance. There is a mild tension between the disappearance and the appearance data sets of T2K. A more serious tension exists between the $\nu_e$ appearance data of T2K and the $\nu_e / \bar\nu_e$ appearance data of NOvA. This tension is significant enough that T2K rules out the best-fit point of NOvA at $95\%$ confidence level whereas NOvA rules out T2K best-fit point at $90\%$ confidence level. We explain the reason why these tensions arise. We also do a combined fit of T2K and NOvA data and comment on the results of this fit.

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Mohammad Nizam, Suman Bharti, Suprabh Prakash, Ushak Rahaman, S. Uma Sankar. 2018-11-03. Tensions between the appearance data of T2K and NOvA. https://doi.org/10.1142/s0217732320500212

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