کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1848664 1528799 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low energy IceCube data and a possible Dark Matter related excess
ترجمه فارسی عنوان
اطلاعات یخچال انرژی کم و اضافی مربوط به ماده تاریک ممکن است
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
چکیده انگلیسی

In this Letter we focus our attention on the IceCube events in the energy range between 60 and 100 TeV, which show an order 2-sigma excess with respect to a power-law with spectral index 2. We analyze the possible origin of such an excess by comparing the distribution of the arrival directions of IceCube events with the angular distributions of simply distributed astrophysical galactic/extragalactic sources, as well as with the expected flux coming from DM interactions (decay and annihilation) for different DM profiles. The statistical analysis performed seems to disfavor the correlation with the galactic plane, whereas rules out the DM annihilation scenario only in case of small clumpiness effect. The small statistics till now collected does not allow to scrutinize the cases of astrophysical isotropic distribution and DM decay scenarios. For this reason we perform a forecast analysis in order to stress the role of future Neutrino Telescopes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 757, 10 June 2016, Pages 251–256
نویسندگان
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