EXTENDED SEARCH FOR POINT SOURCES OF NEUTRINOS BELOW AND ABOVE THE HORIZON: COVERING ENERGIES FROM TeV TO EeV WITH ICECUBE
| العنوان: | EXTENDED SEARCH FOR POINT SOURCES OF NEUTRINOS BELOW AND ABOVE THE HORIZON: COVERING ENERGIES FROM TeV TO EeV WITH ICECUBE |
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| المؤلفون: | Lauer, R., IceCube Collaboration |
| المصدر: | International journal of modern physics / D 18, 1587 (2009). doi:10.1142/S0218271809015485 High-Energy Gamma-rays and Neutrinos from Extra-Galactic Sources, Heidelberg, Germany, 2009-01-13-2009-01-16 |
| بيانات النشر: | World Scientific Pub Co Pte Lt, 2009. |
| سنة النشر: | 2009 |
| مصطلحات موضوعية: | High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Muon, 010308 nuclear & particles physics, Point source, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Astrophysics::Instrumentation and Methods for Astrophysics, Northern Hemisphere, FOS: Physical sciences, Astronomy and Astrophysics, Field of view, Astrophysics, 01 natural sciences, Frequency spectrum, Space and Planetary Science, Sky, 0103 physical sciences, ddc:530, Point (geometry), Neutrino, Astrophysics - High Energy Astrophysical Phenomena, 010306 general physics, Mathematical Physics, media_common |
| الوصف: | Point source searches with neutrino telescopes like IceCube are normally restricted to one hemisphere, due to the selection of up-going events as a way of rejecting the atmospheric muon background. In this work we show that the down-going region above the horizon can be included in the search by suppressing the background through energy-sensitive selection procedures. This approach increases the reach to the EeV regime of the signal spectrum, which was previously not accessible due to the absorption of neutrinos with energies above a PeV inside the Earth. We present preliminary results of this analysis, which for the first time includes up-going as well as down-going muon events in a combined approach. We used data collected with IceCube in a configuration of 22 strings. No significant excess above the atmospheric background is observed. While other analyses provided results for the Northern hemisphere, this new approach extends the field of view to a large part of the Southern sky, which was previously not covered with IceCube. 4 pages, 1 figure. To be published in the proceedings of the 2nd Heidelberg workshop "High-Energy Gamma-rays and Neutrinos from Extra-Galactic Sources", 2009 (Journal of Modern Physics D) |
| تدمد: | 1793-6594 0218-2718 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa934f6bbaf78f557b55b575fcfb3a14Test https://doi.org/10.1142/s0218271809015485Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....fa934f6bbaf78f557b55b575fcfb3a14 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17936594 02182718 |
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