학술논문
An algorithm for the reconstruction of high-energy neutrino-induced particle showers and its application to the ANTARES neutrino telescope
Document Type
article
Author
A. Albert; M. André; M. Anghinolfi; G. Anton; M. Ardid; J.-J. Aubert; T. Avgitas; B. Baret; J. Barrios-Martí; S. Basa; V. Bertin; S. Biagi; R. Bormuth; S. Bourret; M. C. Bouwhuis; R. Bruijn; J. Brunner; J. Busto; A. Capone; L. Caramete; J. Carr; S. Celli; T. Chiarusi; M. Circella; J. A. B. Coelho; A. Coleiro; R. Coniglione; H. Costantini; P. Coyle; A. Creusot; A. Deschamps; G. De Bonis; C. Distefano; I. Di Palma; A. Domi; C. Donzaud; D. Dornic; D. Drouhin; T. Eberl; I. El Bojaddaini; D. Elsässer; A. Enzenhöfer; I. Felis; F. Folger; L. A. Fusco; S. Galatà; P. Gay; V. Giordano; H. Glotin; T. Grégoire; R. Gracia Ruiz; K. Graf; S. Hallmann; H. van Haren; A. J. Heijboer; Y. Hello; J. J. Hernández-Rey; J. Hößl; J. Hofestädt; C. Hugon; G. Illuminati; C. W. James; M. de Jong; M. Jongen; M. Kadler; O. Kalekin; U. Katz; D. Kießling; A. Kouchner; M. Kreter; I. Kreykenbohm; V. Kulikovskiy; C. Lachaud; R. Lahmann; D. Lefèvre; E. Leonora; M. Lotze; S. Loucatos; M. Marcelin; A. Margiotta; A. Marinelli; J. A. Martínez-Mora; R. Mele; K. Melis; T. Michael; P. Migliozzi; A. Moussa; E. Nezri; M. Organokov; G. E. Păvălaş; C. Pellegrino; C. Perrina; P. Piattelli; V. Popa; T. Pradier; L. Quinn; C. Racca; G. Riccobene; A. Sánchez-Losa; M. Saldaña; I. Salvadori; D. F. E. Samtleben; M. Sanguineti; P. Sapienza; F. Schüssler; C. Sieger; M. Spurio; Th. Stolarczyk; M. Taiuti; Y. Tayalati; A. Trovato; D. Turpin; C. Tönnis; B. Vallage; V. Van Elewyck; F. Versari; D. Vivolo; A. Vizzoca; J. Wilms; J. D. Zornoza; J. Zúñiga
Source
European Physical Journal C: Particles and Fields, Vol 77, Iss 6, Pp 1-11 (2017)
Subject
Language
English
ISSN
1434-6044
1434-6052
1434-6052
Abstract
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 $$6^\circ $$ 6 ∘ for shower energies below 100 TeV. Applying this algorithm to 6 years of data taken with the ANTARES detector, 8 events with reconstructed shower energies above 10 TeV 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 $$90\%$$ 90 % C.L. upper limit on the diffuse astrophysical neutrino flux with a value per neutrino flavour of $$\text {E}^2\cdot \Phi ^{90\%} = 4.9 \cdot 10^{-8}\,\mathrm {GeV} \cdot \mathrm {cm^{-2} \cdot s^{-1}\cdot sr^{-1}}$$ E 2 · Φ 90 % = 4.9 · 10 - 8 GeV · cm - 2 · s - 1 · sr - 1 is set, applicable to the energy range from 23 TeV to 7.8 PeV, assuming an unbroken $$\text {E}^{-2}$$ E - 2 spectrum and neutrino flavour equipartition at Earth.