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Search for neutrino-induced cascades with five years of AMANDA data
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2011 (English)In: Astroparticle physics, ISSN 0927-6505, E-ISSN 1873-2852, Vol. 34, no 6, 420-430 p.Article in journal (Refereed) Published
Abstract [en]

We report on the search for electromagnetic and hadronic showers ("cascades") produced by a diffuse flux of extraterrestrial neutrinos in the AMANDA neutrino telescope. Data for this analysis were recorded during 1001 days of detector livetime in the years 2000-2004. The observed event rates are consistent with the background expectation from atmospheric neutrinos and muons. An upper limit is derived for the diffuse flux of neutrinos of all flavors assuming a flavor ratio of v(e):v(mu):v(tau) = 1:1:1 at the detection site. The all-flavor flux of neutrinos with an energy spectrum Phi proportional to E-2 is less than 5.0 x 10(-7) GeV s(-1) sr(-1) cm(-2) at a 90% C.L. Here, 90% of the simulated signal would fall within the energy range 40 TeV to 9 PeV. We discuss flux limits in the context of several specific models of extraterrestrial and prompt atmospheric neutrino production.

Place, publisher, year, edition, pages
2011. Vol. 34, no 6, 420-430 p.
Keyword [en]
Neutrinos, Cascades
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-148657DOI: 10.1016/j.astropartphys.2010.10.007ISI: 000287068800012OAI: oai:DiVA.org:uu-148657DiVA: diva2:402671
Available from: 2011-03-09 Created: 2011-03-09 Last updated: 2011-03-09Bibliographically approved

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de los Heros, Carlos Perez
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