Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
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Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector. / Aartsen, M.G.; Abbasi, R.; Ackermann, M.; Adams, J.; Aguilar, J.A.; Ahlers, M.; Altmann, D.; Auffenberg, J.; Bai, X.; Baker, M.; Sarkar, Subir; Koskinen, David Jason.
In: Science, Vol. 342, No. 6161, 12428562, 22.11.2013.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
AU - Aartsen, M.G.
AU - Abbasi, R.
AU - Ackermann, M.
AU - Adams, J.
AU - Aguilar, J.A.
AU - Ahlers, M.
AU - Altmann, D.
AU - Auffenberg, J.
AU - Bai, X.
AU - Baker, M.
AU - Sarkar, Subir
AU - Koskinen, David Jason
PY - 2013/11/22
Y1 - 2013/11/22
N2 - We report on results of an all-sky search for high-energy neutrino events interacting within the IceCube neutrino detector conducted between May 2010 and May 2012. The search follows up on the previous detection of two PeV neutrino events, with improved sensitivity and extended energy coverage down to about 30 TeV. Twenty-six additional events were observed, substantially more than expected from atmospheric backgrounds. Combined, both searches reject a purely atmospheric origin for the 28 events at the 4s level. These 28 events, which include the highestenergy neutrinos ever observed, have flavors, directions, and energies inconsistent with those expected from the atmospheric muon and neutrino backgrounds. These properties are, however, consistent with generic predictions for an additional component of extraterrestrial origin.
AB - We report on results of an all-sky search for high-energy neutrino events interacting within the IceCube neutrino detector conducted between May 2010 and May 2012. The search follows up on the previous detection of two PeV neutrino events, with improved sensitivity and extended energy coverage down to about 30 TeV. Twenty-six additional events were observed, substantially more than expected from atmospheric backgrounds. Combined, both searches reject a purely atmospheric origin for the 28 events at the 4s level. These 28 events, which include the highestenergy neutrinos ever observed, have flavors, directions, and energies inconsistent with those expected from the atmospheric muon and neutrino backgrounds. These properties are, however, consistent with generic predictions for an additional component of extraterrestrial origin.
U2 - 10.1126/science.1242856
DO - 10.1126/science.1242856
M3 - Journal article
VL - 342
JO - Science
JF - Science
SN - 0036-8075
IS - 6161
M1 - 12428562
ER -
ID: 96234161