کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1852518 1033983 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fourier analysis of the parametric resonance in neutrino oscillations
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Fourier analysis of the parametric resonance in neutrino oscillations
چکیده انگلیسی

Parametric enhancement of the appearance probability of the neutrino oscillation under the inhomogeneous matter is studied. Fourier expansion of the matter density profile leads to a simple resonance condition and manifests that each Fourier mode modifies the energy spectrum of oscillation probability at around the corresponding energy; below the MSW resonance energy, a large-scale variation modifies the spectrum in high energies while a small-scale one does in low energies. In contrast to the simple parametric resonance, the enhancement of the oscillation probability is itself an slow oscillation as demonstrated by a numerical analysis with a single Fourier mode of the matter density. We derive an analytic solution to the evolution equation on the resonance energy, including the expression of frequency of the slow oscillation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 675, Issue 1, 4 May 2009, Pages 69–72
نویسندگان
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