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Search for a diffuse flux of high-energy νμ with the ANTARES neutrino telescope

J.A. Aguilar Imen Al Samarai 1 A. Albert 2 M. André M. Anghinolfi G. Anton S. Anvar 3 M. Ardid A.C. Assis Jesus T. Astraatmadja J.-J. Aubert 1 R. Auer B. Baret 4 S. Basa 5 M. Bazzotti V. Bertin 1 S. Biagi C. Bigongiari C. Bogazzi M. Bou-Cabo M.C. Bouwhuis A.M. Brown 1 J. Brunner 1 J. Busto 1 F. Camarena A. Capone C. Cârloganu 6 G. Carminati J. Carr 1 S. Cecchini Ph. Charvis 7 T. Chiarusi M. Circella R. Coniglione H. Costantini N. Cottini 8 P. Coyle 1 C. Curtil 1 M.P. Decowski I. Dekeyser 9 Anne Deschamps 7 C. Donzaud 4, 10 D. Dornic 1 Q. Dorosti D. Drouhin 2 T. Eberl U. Emanuele J.-P. Ernenwein 1 S. Escoffier 1 F. Fehr 6 V. Flaminio F. Folger U. Fritsch J.-L. Fuda 9 S. Galata Pascal Gay 6 G. Giacomelli J.P. Gómez-González K. Graf G. Guillard 6 G. Halladjian 1 G. Hallewell 1 H. van Haren A.J. Heijboer Y. Hello 7 J.J. Hernández-Rey B. Herold J. Hößl C.C. Hsu M. de Jong M. Kadler N. Kalantar-Nayestanaki O. Kalekin A. Kappes U. Katz P. Kooijman C. Kopper A. Kouchner 11 V. Kulikovskiy R. Lahmann P. Lamare 3 G. Larosa Dominique Lefèvre 9 G. Lim D. Lo Presti 3 H. Loehner S. Loucatos 8 F. Lucarelli S. Mangano M. Marcelin 5 A. Margiotta J.A. Martinez-Mora A. Mazure 5 A. Meli T. Montaruli M. Morganti L. Moscoso 4, 8 H. Motz C. Naumann 8 M. Neff D. Palioselitis G.E. Păvălaş P. Payre 1 J. Petrovic P. Piattelli N. Picot-Clemente 1 C. Picq 8 V. Popa T. Pradier E. Presani C. Racca 2 C. Reed 1 G. Riccobene C. Richardt K. Roensch A. Rostovtsev M. Rujoiu G.V. Russo 3 F. Salesa P. Sapienza F. Schöck J.-P. Schuller 8 R. Shanidze F. Simeone A. Spies M. Spurio J.J.M. Steijger Th. Stolarczyk 8 M. Taiuti Christian Tamburini 9 L. Tasca 5 S. Toscano B. Vallage 8 V. van Elewyck 4 G. Vannoni 3 M. Vecchi 1 P. Vernin 8 G. Wijnker E. de Wolf H. Yepes D. Zaborov 1 J.D. Zornoza J. Zúñiga
Abstract : A search for a diffuse flux of astrophysical muon neutrinos, using data collected by the ANTARES neutrino telescope is presented. A (0.83×2π) sr sky was monitored for a total of 334 days of equivalent live time. The searched signal corresponds to an excess of events, produced by astrophysical sources, over the expected atmospheric neutrino background. The observed number of events is found compatible with the background expectation. Assuming an E−2 flux spectrum, a 90% c.l. upper limit on the diffuse νμ flux of View the MathML source in the energy range 20 TeV-2.5 PeV is obtained. Other signal models with different energy spectra are also tested and some rejected.
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Submitted on : Monday, December 13, 2010 - 10:09:56 AM
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J.A. Aguilar, Imen Al Samarai, A. Albert, M. André, M. Anghinolfi, et al.. Search for a diffuse flux of high-energy νμ with the ANTARES neutrino telescope. Nuclear Physics B, Elsevier, 2011, 696, pp.16-22. ⟨10.1016/j.physletb.2010.11.070⟩. ⟨in2p3-00545854⟩

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