一种用于重建高能中微子诱发粒子簇射的算法及其在ANTARES中微子望远镜中的应用。
An algorithm for the reconstruction of high-energy neutrino-induced particle showers and its application to the ANTARES neutrino telescope.
作者信息
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 T, 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 A, Marinelli A, Martínez-Mora J A, Mele R, Melis K, Michael T, Migliozzi P, Moussa A, Nezri E, Organokov M, Păvălaş G E, Pellegrino C, 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 M, Stolarczyk Th, Taiuti M, Tayalati Y, Trovato A, Turpin D, Tönnis C, Vallage B, Van Elewyck V, Versari F, Vivolo D, Vizzoca A, Wilms J, Zornoza J D, Zúñiga J
机构信息
GRPHE, Université de Haute Alsace, Institut universitaire de technologie de Colmar, 34 rue du Grillenbreit, BP 50568, 68008 Colmar, France.
Laboratory of Applied Bioacoustics, Rambla Exposició, Technical University of Catalonia, 08800 Vilanova i la Geltrú, Barcelona, Spain.
出版信息
Eur Phys J C Part Fields. 2017;77(6):419. doi: 10.1140/epjc/s10052-017-4979-2. Epub 2017 Jun 21.
A novel algorithm to reconstruct neutrino-induced particle showers within the ANTARES neutrino telescope is presented. The method achieves a median angular resolution of [Formula: see text] 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 [Formula: see text] C.L. upper limit on the diffuse astrophysical neutrino flux with a value per neutrino flavour of [Formula: see text] is set, applicable to the energy range from 23 TeV to 7.8 PeV, assuming an unbroken [Formula: see text] spectrum and neutrino flavour equipartition at Earth.
本文提出了一种用于在ANTARES中微子望远镜内重建中微子诱发粒子簇射的新算法。对于能量低于100 TeV的簇射，该方法实现了[公式：见正文]的中值角分辨率。将此算法应用于ANTARES探测器采集的6年数据，观测到8个重建簇射能量高于10 TeV的事件。这与大气背景预期的约5个事件一致，但也与冰立方合作组对弥漫天体物理通量的测量结果相符，预计从中还会有2 - 4个额外事件。在假设地球处中微子味均分且[公式：见正文]谱未破缺的情况下，设定了一个[公式：见正文]置信水平上限，即每个中微子味的弥漫天体物理中微子通量值为[公式：见正文]，适用于从23 TeV到7.8 PeV的能量范围。
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