Constraints on the extremely-high energy cosmic neutrino flux with the IceCube 2008-2009 data

Journal Article · Sun May 01 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.092003· OSTI ID:21541573

Abbasi, R; Aguilar, J A; Andeen, K; Baker, M; BenZvi, S; Berghaus, P; Braun, J; Chirkin, D; Desiati, P; Diaz-Velez, J C; Dumm, J P; Eisch, J; Gladstone, L; Grullon, S; Halzen, F; Hill, G C; Hoshina, K; Jacobsen, J; Karle, A; Kelley, J L ^[1]

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1. Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)

We report on a search for extremely-high energy neutrinos with energies greater than 10{sup 6} GeV using the data taken with the IceCube detector at the South Pole. The data was collected between April 2008 and May 2009 with the half-completed IceCube array. The absence of signal candidate events in the sample of 333.5 days of live time significantly improves model-independent limits from previous searches and allows to place a limit on the diffuse flux of cosmic neutrinos with an E{sup -2} spectrum in the energy range 2.0x10{sup 6}-6.3x10{sup 9} GeV to a level of E{sup 2{phi}{<=}}3.6x10{sup -8} GeV cm{sup -2} sec{sup -1} sr{sup -1}.

• OSTI ID: 21541573
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 83; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTARCTIC REGIONS
ANTARCTICA
COSMIC NEUTRINOS
COSMIC RADIATION
CRYOSPHERE
DEAD TIME
DETECTION
EEV RANGE
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
IONIZING RADIATIONS
LEPTONS
MASSLESS PARTICLES
NEUTRINO DETECTION
NEUTRINOS
POLAR REGIONS
RADIATION DETECTION
RADIATIONS
SPECTRA
TIMING PROPERTIES