کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8141139 | 1523700 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the non-detection of Glashow resonance in IceCube
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
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چکیده انگلیسی
Electron anti-neutrinos at the Glashow resonance (GR, at Eν¯eâ¼6.3 PeV) have an enhanced probability to be detected. With three neutrinos detected by IceCube in the (1-2) PeV energy range at present, one would expect that about 1 to 4 GR ν¯e should have been detected. The high-energy â¼8.7 PeV muon neutrino detected by IceCube may not be a GR event. If so, we expect to detect 50 to 70 GR ν¯e, then one would have a “missing Glashow-resonance problem”. This would suggest (1) that pγ interaction rather than pp interaction is the dominant channel to produce the observed IceCube high-energy neutrinos; (2) that multi-pion pγ interactions are suppressed; and (3) that the magnetic field and photon energy density in the pγ emission region is such that significant μ+ cooling occurs before decaying, yet Ï+'s essentially do not cool before decaying.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of High Energy Astrophysics - Volume 18, June 2018, Pages 1-4
Journal: Journal of High Energy Astrophysics - Volume 18, June 2018, Pages 1-4
نویسندگان
Sarira Sahu, Bing Zhang,