کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1839953 1527724 2015 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Search for sub-eV sterile neutrinos in the precision multiple baselines reactor antineutrino oscillation experiments
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Search for sub-eV sterile neutrinos in the precision multiple baselines reactor antineutrino oscillation experiments
چکیده انگلیسی

According to different effects on neutrino oscillations, the unitarity violation in the MNSP matrix can be classified into the direct unitarity violation and the indirect   unitarity violation which are induced by the existence of the light and the heavy sterile neutrinos respectively. Of which sub-eV sterile neutrinos are of most interesting. We study in this paper the possibility of searching for sub-eV sterile neutrinos in the precision reactor antineutrino oscillation experiments with three different baselines at around 500 m, 2 km and 60 km. We find that the antineutrino survival probabilities obtained in the reactor experiments are sensitive only to the direct unitarity violation and offer very concentrated sensitivity to the two parameters θ14θ14 and Δm412. If such light sterile neutrinos do exist, the active–sterile mixing angle θ14θ14 could be acquired by the combined rate analysis at all the three baselines and the mass-squared difference Δm412 could be obtained by taking the Fourier transformation to the L/EL/E spectrum. Of course, for such measurements to succeed, both high energy resolution and large statistics are essentially important.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 899, October 2015, Pages 312–327
نویسندگان
,