English

Hierarchy sensitivity of NO$\nu$A in light of T2K $\nu_e$ appearance data

High Energy Physics - Phenomenology 2016-02-11 v1

Abstract

The νe\nu_e appearance data of T2K experiment has given a glimpse of the allowed parameters in the hierarchy-δCP\delta_{CP} parameter space. In this paper, we explore how this data affects our expectations regarding the hierarchy sensitivity of the NOν\nuA experiment. For the favourable combinations of hierarchy and δCP\delta_{CP}, the hierarchy sensitivity of NOν\nuA is unaffected by the addition of T2K data. For the unfavourable combinations, NOν\nuA data gives degenerate solutions. Among these degenerate solutions, T2K data prefers IH and δCP\delta_{CP} in the lower half plane over NH and δCP\delta_{CP} in the upper half plane. Hence, addition of the T2K data to NOν\nuA creates a bias towards IH and δCP\delta_{CP} in the lower half plane irrespective of what the true combination is.

Keywords

Cite

@article{arxiv.1602.03513,
  title  = {Hierarchy sensitivity of NO$\nu$A in light of T2K $\nu_e$ appearance data},
  author = {Suman Bharti and Suprabh Prakash and Ushak Rahaman and S. Uma Sankar},
  journal= {arXiv preprint arXiv:1602.03513},
  year   = {2016}
}

Comments

22 pages, 14 figures