CP violation in long baseline neutrino oscillation experiments

Chise Sakaguchi; Toshihiko Hattori; Seiichi Wakaizumi

paper

CP violation in long baseline neutrino oscillation experiments

arXiv:hep-ph/0112327

Abstract

We define a difference $D_{CP}$ of the neutrino oscillation probability differences with matter effect for the CP-conjugate channels, divided by neutrino beam energy, taken between the two baselines $L = L_{1}$ and $L = L_{2}$ with $L_{1} / E_{1} = L_{2} / E_{2}$ , where $E_{1}$ and $E_{2}$ are the neutrino energy for the experiment with $L_{1}$ and $L_{2}$ , respectively. The quantity $D_{CP}$ doesn't contain the matter effect to the first order in $a L /2 E$ , $a$ representing the matter effect. We show the behavior of $D_{CP}$ with $L_{1} = 300$ km fixed and $L_{2}$ variable in the three-neutrino model.

8 pages, 3 eps figures