کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10725209 | 1034095 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Transition radiation by neutrinos
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
We calculate the transition radiation process νâνγ at an interface of two media. The neutrinos are taken to be with only standard-model couplings. The medium fulfills the dual purpose of inducing an effective neutrino-photon vertex and of modifying the photon dispersion relation. The transition radiation occurs when at least one of those quantities have different values in different media. The neutrino mass is ignored due to its negligible contribution. We present a result for the probability of the transition radiation which is both accurate and analytic. For Eν=1 MeV neutrino crossing polyethylene-vacuum interface the transition radiation probability is about 10â39 and the energy intensity is about 10â34eV. At the surface of the neutron stars the transition radiation probability may be â¼10â20. Our result is by the three orders of magnitude larger than those of previous calculations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 702, Issue 4, 19 August 2011, Pages 272-275
Journal: Physics Letters B - Volume 702, Issue 4, 19 August 2011, Pages 272-275
نویسندگان
A.N. Ioannisian, D.A. Ioannisian, N.A. Kazarian,