Determining the octant of theta(23) at LBNE in conjunction with reactor experiments

作者：Bora Kalpana; Dutta Debajyoti^*; Ghoshal Pomita

来源：Modern Physics Letters A, 2015, 30(14): 1550066.

DOI：10.1142/S0217732315500662

• Neutrino oscillation
• octant sensitivity
• LBNE

We have explored the possibility of resolving the theta(23) octant degeneracy present in the newly planned Long-Baseline Neutrino Experiment (LBNE) by combining reactor experiments. Reactor experiments have already measured the third mixing angle theta(13) very precisely and this precise measurement of theta(13) in turn helps in determining the octant of theta(23). We have examined the octant sensitivity with and without data from reactors. Octant sensitivity increases if reactors are added. The comparative study of octant sensitivities of 10 kt and 35 kt liquid argon far detector (FD), with and without the near detector (ND), reveals that the sensitivity increases with an increase in detector mass. Also, the presence of the ND improves the sensitivity. The effect of adding prior on octant determination is also studied in this work.

• 出版日期2015-5-10