To distinguish the pseudo-Dirac from Dirac neutrinos by observing the high-energy astrophysical neutrinos.

Tsungche Liu^4,2*, Guey-Lin Lin¹, Kwang-Chang Lai³

¹Institute of Physics, National Chiao Tung University, Hsinchu, Taiwan
²LeCosPA, National Taiwan university, Taipei, Taiwan
³Center for General Education, Chang Gung University, Taoyuan, Taiwan
⁴Department of Physics, national Taiwan university, Taipei, Taiwan

* Presenter:Tsungche Liu, email:tcliu@ntu.edu.tw

The Pseudo-Dirac neutrino is composed of two maximally-mixed Majorana neutrinos with a tiny mass difference. The oscillation phenomenology of Pseudo-Dirac neutrino is different from the phenomenology of usual active neutrinos. In this work, we consider the distance distribution of blazars to predict the observable neutrino sky map of Pseudo-Dirac neutrino on Earth.

Keywords: astroparticle physics, neutrino phenomenology, neutrino telescope