Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-11-30
Phys.Rev.D65:053015,2002
Physics
High Energy Physics
High Energy Physics - Phenomenology
32pages, 15figures, Accepted for publication in Physical Review D Discussion about CP violation is based on chi_{3}^{2} in thi
Scientific paper
10.1103/PhysRevD.65.053015
We study the sensitivity to the CP/T-violation search in the presence of ambiguities of the theoretical parameters. Three generations of neutrinos are considered. The parameters whose ambiguities are considered are the differences of the squared masses, the mixing angles, and the density of matter. We first consider the statistics that are sensitive to the genuine CP-violation effect originating from the imaginary coupling. No ambiguity of the parameters is considered in this part. It is argued that the widely-adopted usual statistics are not necessarily sensitive to the genuine CP-violation effect. Two statistics that are sensitive to the imaginary coupling are proposed. The qualitative difference between these statistics and the usual one are discussed. Next we proceed to the case where the ambiguity of the parameters is present. The sensitivity of the CP-violation search is greatly spoiled when the baseline length is longer than about one thousand kilometers, which turns out to be due to the ambiguity of the matter effect. Thus the CP-violation search by use of CP conjugate channels turns out to require a low energy neutrino and short baseline length. It is also shown that such a loss of sensitivity is avoided by using T-conjugate oscillation channels.
Koike Masafumi
Ota Toshihiko
Sato Joe
No associations
LandOfFree
Ambiguities of theoretical parameters and CP/T violation in neutrino factories does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Ambiguities of theoretical parameters and CP/T violation in neutrino factories, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ambiguities of theoretical parameters and CP/T violation in neutrino factories will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-248848