An algorithm for the reconstruction of high-energy neutrino-induced particle showers and its application to the ANTARES neutrino telescope

Albert, A.; André, M.; Anghinolfi, M.; Anton, G.; Ardid, M.; Aubert, J. J.; Avgitas, T.; Baret, B.; Barrios Martí, J.; Basa, S.; Bertin, V.; Biagi, S.; Bormuth, R.; Bourret, S.; Bouwhuis, M. C.; Bruijn, R.; Brunner, J.; Busto, J.; Capone, A.; Caramete, L.; Carr, J.; Celli, S.; CHIARUSI, TOMMASO; Circella, M.; Coelho, J. A. B.; Coleiro, A.; Coniglione, R.; Costantini, H.; Coyle, P.; Creusot, A.; Deschamps, A.; De Bonis, G.; Distefano, C.; Di Palma, I.; Domi, A.; Donzaud, C.; Dornic, D.; Drouhin, D.; Eberl, T.; El Bojaddaini, I.; Elsässer, D.; Enzenhöfer, A.; Felis, I.; Folger, F.; Fusco, L. A.; Galatà, S.; Gay, P.; Giordano, V.; Glotin, H.; Grégoire, T.; Gracia Ruiz, R.; Graf, K.; Hallmann, S.; van Haren, H.; Heijboer, A. J.; Hello, Y.; Hernández Rey, J. J.; Hößl, J.; Hofestädt, J.; Hugon, C.; Illuminati, G.; James, C. W.; de Jong, M.; Jongen, M.; Kadler, M.; Kalekin, O.; Katz, U.; Kießling, D.; Kouchner, A.; Kreter, M.; Kreykenbohm, I.; Kulikovskiy, V.; Lachaud, C.; Lahmann, R.; Lefèvre, D.; Leonora, E.; Lotze, M.; Loucatos, S.; Marcelin, M.; MARGIOTTA, ANNARITA; Marinelli, A.; Martínez Mora, J. A.; Mele, R.; Melis, K.; Michael, T.; Migliozzi, P.; Moussa, A.; Nezri, E.; Organokov, M.; Păvălaş, G. E.; PELLEGRINO, CARMELO; Perrina, C.; Piattelli, P.; Popa, V.; Pradier, T.; Quinn, L.; Racca, C.; Riccobene, G.; Sánchez Losa, A.; Saldaña, M.; Salvadori, I.; Samtleben, D. F. E.; Sanguineti, M.; Sapienza, P.; Schüssler, F.; Sieger, C.; SPURIO, MAURIZIO; Stolarczyk, T. h.; Taiuti, M.; Tayalati, Y.; Trovato, A.; Turpin, D.; Tönnis, C.; Vallage, B.; Van Elewyck, V.; VERSARI, FEDERICO; Vivolo, D.; Vizzoca, A.; Wilms, J.; Zornoza, J. D.; Zúñiga, J.

doi:10.1140/epjc/s10052-017-4979-2

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A novel algorithm to reconstruct neutrino-induced particle showers within the ANTARES neutrino telescope is presented. The method achieves a median angular resolution of 6◦ for shower energies below 100TeV. Applying this algorithm to 6 years of data taken with theANTARES detector, 8 events with reconstructed shower energies above 10TeV are observed. This is consistent with the expectation of about 5 events from atmospheric backgrounds, but also compatible with diffuse astrophysical flux measurements by the IceCube collaboration, from which 2–4 additional events are expected. A 90% C.L. upper limit on the diffuse astrophysical neutrino flux with a value per neutrino flavour of E2 ·90% = 4.9 · 10−8 GeV · cm−2 · s−1 · sr−1 is set, applicable to the energy range from 23TeV to 7.8PeV, assuming an unbroken E−2 spectrum and neutrino flavour equipartition at Earth.

Titolo:	An algorithm for the reconstruction of high-energy neutrino-induced particle showers and its application to the ANTARES neutrino telescope
Autore/i:	Albert, A.; André, M.; Anghinolfi, M.; Anton, G.; Ardid, M.; Aubert, J. J.; Avgitas, T.; Baret, B.; Barrios Martí, J.; Basa, S.; Bertin, V.; Biagi, S.; Bormuth, R.; Bourret, S.; Bouwhuis, M. C.; Bruijn, R.; Brunner, J.; Busto, J.; Capone, A.; Caramete, L.; Carr, J.; Celli, S.; CHIARUSI, TOMMASO; Circella, M.; Coelho, J. A. B.; Coleiro, A.; Coniglione, R.; Costantini, H.; Coyle, P.; Creusot, A.; Deschamps, A.; De Bonis, G.; Distefano, C.; Di Palma, I.; Domi, A.; Donzaud, C.; Dornic, D.; Drouhin, D.; Eberl, T.; El Bojaddaini, I.; Elsässer, D.; Enzenhöfer, A.; Felis, I.; Folger, F.; Fusco, L. A.; Galatà, S.; Gay, P.; Giordano, V.; Glotin, H.; Grégoire, T.; Gracia Ruiz, R.; Graf, K.; Hallmann, S.; van Haren, H.; Heijboer, A. J.; Hello, Y.; Hernández Rey, J. J.; Hößl, J.; Hofestädt, J.; Hugon, C.; Illuminati, G.; James, C. W.; de Jong, M.; Jongen, M.; Kadler, M.; Kalekin, O.; Katz, U.; Kießling, D.; Kouchner, A.; Kreter, M.; Kreykenbohm, I.; Kulikovskiy, V.; Lachaud, C.; Lahmann, R.; Lefèvre, D.; Leonora, E.; Lotze, M.; Loucatos, S.; Marcelin, M.; MARGIOTTA, ANNARITA; Marinelli, A.; Martínez Mora, J. A.; Mele, R.; Melis, K.; Michael, T.; Migliozzi, P.; Moussa, A.; Nezri, E.; Organokov, M.; Păvălaş, G. E.; PELLEGRINO, CARMELO; Perrina, C.; Piattelli, P.; Popa, V.; Pradier, T.; Quinn, L.; Racca, C.; Riccobene, G.; Sánchez Losa, A.; Saldaña, M.; Salvadori, I.; Samtleben, D. F. E.; Sanguineti, M.; Sapienza, P.; Schüssler, F.; Sieger, C.; SPURIO, MAURIZIO; Stolarczyk, T.h.; Taiuti, M.; Tayalati, Y.; Trovato, A.; Turpin, D.; Tönnis, C.; Vallage, B.; Van Elewyck, V.; VERSARI, FEDERICO; Vivolo, D.; Vizzoca, A.; Wilms, J.; Zornoza, J. D.; Zúñiga, J.
Autore/i Unibo:	Albert, A. André, M. Anghinolfi, M. Anton, G. Ardid, M. Aubert, J. J. Avgitas, T. Baret, B. Barrios Martí, J. Basa, S. Bertin, V. Biagi, S. Bormuth, R. Bourret, S. Bouwhuis, M. C. Bruijn, R. Brunner, J. Busto, J. Capone, A. Caramete, L. Carr, J. Celli, S. CHIARUSI, TOMMASO Circella, M. Coelho, J. A. B. Coleiro, A. Coniglione, R. Costantini, H. Coyle, P. Creusot, A. Deschamps, A. De Bonis, G. Distefano, C. Di Palma, I. Domi, A. Donzaud, C. Dornic, D. Drouhin, D. Eberl, T. El Bojaddaini, I. Elsässer, D. Enzenhöfer, A. Felis, I. Folger, F. Fusco, L. A. Galatà, S. Gay, P. Giordano, V. Glotin, H. Grégoire, T. Gracia Ruiz, R. Graf, K. Hallmann, S. van Haren, H. Heijboer, A. J. Hello, Y. Hernández Rey, J. J. Hößl, J. Hofestädt, J. Hugon, C. Illuminati, G. James, C. W. de Jong, M. Jongen, M. Kadler, M. Kalekin, O. Katz, U. Kießling, D. Kouchner, A. Kreter, M. Kreykenbohm, I. Kulikovskiy, V. Lachaud, C. Lahmann, R. Lefèvre, D. Leonora, E. Lotze, M. Loucatos, S. Marcelin, M. MARGIOTTA, ANNARITA Marinelli, A. Martínez Mora, J. A. Mele, R. Melis, K. Michael, T. Migliozzi, P. Moussa, A. Nezri, E. Organokov, M. Păvălaş, G. E. PELLEGRINO, CARMELO Perrina, C. Piattelli, P. Popa, V. Pradier, T. Quinn, L. Racca, C. Riccobene, G. Sánchez Losa, A. Saldaña, M. Salvadori, I. Samtleben, D. F. E. Sanguineti, M. Sapienza, P. Schüssler, F. Sieger, C. SPURIO, MAURIZIO Stolarczyk, T.h. Taiuti, M. Tayalati, Y. Trovato, A. Turpin, D. Tönnis, C. Vallage, B. Van Elewyck, V. VERSARI, FEDERICO Vivolo, D. Vizzoca, A. Wilms, J. Zornoza, J. D. Zúñiga, J. mostra contributor esterni nascondi contributor esterni
Anno:	2017
Rivista:	THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Digital Object Identifier (DOI):	http://dx.doi.org/10.1140/epjc/s10052-017-4979-2
Abstract:	A novel algorithm to reconstruct neutrino-induced particle showers within the ANTARES neutrino telescope is presented. The method achieves a median angular resolution of 6◦ for shower energies below 100TeV. Applying this algorithm to 6 years of data taken with theANTARES detector, 8 events with reconstructed shower energies above 10TeV are observed. This is consistent with the expectation of about 5 events from atmospheric backgrounds, but also compatible with diffuse astrophysical flux measurements by the IceCube collaboration, from which 2–4 additional events are expected. A 90% C.L. upper limit on the diffuse astrophysical neutrino flux with a value per neutrino flavour of E2 ·90% = 4.9 · 10−8 GeV · cm−2 · s−1 · sr−1 is set, applicable to the energy range from 23TeV to 7.8PeV, assuming an unbroken E−2 spectrum and neutrino flavour equipartition at Earth.
Data stato definitivo:	2017-06-28T14:36:00Z
Appare nelle tipologie:	1.01 Articolo in rivista

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