ANTARES neutrino search for time and space correlations with IceCube high-energy neutrino events

A. Albert 1 M. André M. Anghinolfi G. Anton M. Ardid J.-J. Aubert 2 J. Aublin 3 B. Baret 3 J. Barrios-Martí S. Basa 4 B. Belhorma V. Bertin 2 S. Biagi R. Bormuth J. Boumaaza S. Bourret 3 M. Bouta M.C. Bouwhuis H. Brânzaş R. Bruijn J. Brunner 2 J. Busto 2 A. Capone L. Caramete J. Carr 2 S. Celli M. Chabab R. Cherkaoui El Moursli T. Chiarusi M. Circella A. Coleiro 3 M. Colomer 3 R. Coniglione H. Costantini 2 P. Coyle 2 A. Creusot 3 A.F. Díaz A. Deschamps 5 C. Distefano I. Di Palma A. Domi R. Donà C. Donzaud 3, 6 D. Dornic 2 D. Drouhin 1 T. Eberl I. El Bojaddaini N. El Khayati D. Elsässer A. Enzenhöfer 2 A. Ettahiri F. Fassi P. Fermani G. Ferrara L. Fusco 3 P. Gay 3, 7 H. Glotin 8 R. Gozzini T. Grégoire 3 R. Gracia Ruiz 1 K. Graf S. Hallmann H. van Haren A.J. Heijboer Y. Hello 5 J.J. Hernández-Rey J. Hößl J. Hofestädt G. Illuminati C.W. James M. de Jong M. Jongen M. Kadler O. Kalekin U. Katz N.R. Khan-Chowdhury A. Kouchner 3 M. Kreter I. Kreykenbohm V. Kulikovskiy R. Lahmann R. Le Breton 3 D. Lefèvre 9 E. Leonora G. Levi M. Lincetto 2 D. Lopez-Coto M. Lotze S. Loucatos 3, 10 G. Maggi 2 M. Marcelin 4 A. Margiotta A. Marinelli J.A. Martínez-Mora R. Mele K. Melis P. Migliozzi A. Moussa S. Navas E. Nezri 4 C. Nielsen 3 A. Nuñez 2, 4 M. Organokov 1 G.E. Păvălaş C. Pellegrino M. Perrin-Terrin 2 P. Piattelli V. Popa T. Pradier 1 L. Quinn 2 C. Racca 11 N. Randazzo G. Riccobene A. Sánchez-Losa A. Salah-Eddine I. Salvadori 2 D.F.E. Samtleben M. Sanguineti P. Sapienza F. Schüssler 10 M. Spurio Th. Stolarczyk 10 M. Taiuti Y. Tayalati T. Thakore A. Trovato B. Vallage 3, 10 V. van Elewyck 3 F. Versari S. Viola D. Vivolo J. Wilms D. Zaborov 2 J.D. Zornoza J. Zúñiga
Abstract : In the past years, the IceCube Collaboration has reported in several analyses the observation of astrophysical high-energy neutrino events. Despite a compelling evidence for the first identification of a neutrino source, TXS 0506+056, the origin of the majority of these events is still unknown. In this paper, a possible transient origin of the IceCube astrophysical events is searched for using neutrino events detected by the ANTARES telescope. The arrival time and direction of 6894 track-like and 160 shower-like events detected over 2346 days of livetime are examined to search for coincidences with 54 IceCube high-energy track-like neutrino events, by means of a maximum likelihood method. No significant correlation is observed and upper limits on the one-flavour neutrino fluence from the direction of the IceCube candidates are derived. The non-observation of time and space correlation within the time window of 0.1 days with the two most energetic IceCube events constrains the spectral index of a possible point-like transient neutrino source, to be harder than $-2.3$ and $-2.4$ for each event, respectively.
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Submitted on : Wednesday, March 13, 2019 - 5:51:08 PM
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A. Albert, M. André, M. Anghinolfi, G. Anton, M. Ardid, et al.. ANTARES neutrino search for time and space correlations with IceCube high-energy neutrino events. Astrophys.J., 2019, 879 (2), pp.108. ⟨10.3847/1538-4357/ab253c⟩. ⟨hal-02066913⟩

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