Title
Extending the search for neutrino point sources with iceCube above the horizon
Date Issued
24 November 2009
Access level
open access
Resource Type
journal article
Author(s)
Abbasi R.
Abdou Y.
Abu-Zayyad T.
Adams J.
Aguilar J.A.
Ahlers M.
Andeen K.
Auffenberg J.
Bai X.
Baker M.
Barwick S.W.
Bay R.
Beattie K.
Beatty J.J.
Bechet S.
Becker J.K.
Becker K.H.
Benabderrahmane M.L.
Berdermann J.
Berghaus P.
Berley D.
Bernardini E.
Bertrand D.
Besson D.Z.
Bissok M.
Blaufuss E.
Boersma D.J.
Bohm C.
Botner O.
Bradley L.
Braun J.
Breder D.
Carson M.
Castermans T.
Chirkin D.
Christy B.
Clem J.
Cohen S.
Cowen D.F.
D'Agostino M.V.
Danninger M.
Day C.T.
De Clercq C.
Demirörs L.
Depaepe O.
Descamps F.
Desiati P.
De Vries-Uiterweerd G.
Deyoung T.
Díaz-Vélez J.C.
Dreyer J.
Dumm J.P.
Duvoort M.R.
Edwards W.R.
Ehrlich R.
Eisch J.
Ellsworth R.W.
Engdegård O.
Euler S.
Evenson P.A.
Fadiran O.
Fazely A.R.
Feusels T.
Filimonov K.
Finley C.
Foerster M.M.
Fox B.D.
Franckowiak A.
Franke R.
Gaisser T.K.
Gallagher J.
Ganugapati R.
Gerhardt L.
Gladstone L.
Goldschmidt A.
Goodman J.A.
Gozzini R.
Grant D.
Griesel T.
Groß A.
Grullon S.
Gunasingha R.M.
Gurtner M.
Ha C.
Hallgren A.
Halzen F.
Han K.
Hanson K.
Hasegawa Y.
Helbing K.
Herquet P.
Hickford S.
Hill G.C.
Hoffman K.D.
Homeier A.
Hoshina K.
Hubert D.
Huelsnitz W.
Hülß J.P.
RWTH Aachen University
Abstract
Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies. © 2009 The American Physical Society.
Volume
103
Issue
22
Language
English
OCDE Knowledge area
Astronomía
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-72649098574
Source
Physical Review Letters
ISSN of the container
00319007
Sources of information:
Directorio de Producción Científica
Scopus