All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data
The ANTARES detector is at present the most sensitive neutrino telescope in the northern hemisphere. The highlysignificant cosmic neutrino excess observed by the Antarctic IceCube detector can be studied with ANTARES,exploiting its complementing field of view, exposure, and lower energy threshold. S...
Published in: | The Astrophysical Journal |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
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Online Access: | http://hdl.handle.net/11386/4781460 https://doi.org/10.3847/2041-8213/aaa4f6 |
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ftunisalernoiris:oai:www.iris.unisa.it:11386/4781460 |
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Open Polar |
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EleA@Unisa (Università degli Studi di Salerno) |
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ftunisalernoiris |
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English |
topic |
astroparticle physic neutrinos |
spellingShingle |
astroparticle physic neutrinos Albert A. Andre M. Anghinolfi M. Anton G. Ardid M. Aubert J. -J. Aublin J. Avgitas T. Baret B. Barrios-Marti J. Basa S. Belhorma B. Bertin V. Biagi S. Bormuth R. Bourret S. Bouwhuis M. C. Branzas H. Bruijn R. Brunner J. Busto J. Capone A. Caramete L. Carr J. Celli S. El Moursli R. C. Chiarusi T. Circella M. Coelho J. A. B. Coleiro A. Coniglione R. Costantini H. Coyle P. Creusot A. Diaz A. F. Deschamps A. Bonis G. D. Distefano C. Palma I. D. Domi A. Donzaud C. Dornic D. Drouhin D. Eberl T. Bojaddaini I. E. Khayati N. E. Elsasser D. Enzenhofer A. Ettahiri A. Fassi F. Felis I. Fusco L. A. Gay P. Giordano V. Glotin H. Gregoire T. Ruiz R. G. Graf K. Hallmann S. Haren H. V. Heijboer A. J. Hello Y. Hernandez-Rey J. J. Hossl J. Hofestadt J. Illuminati G. James C. W. Jong M. D. Jongen M. Kadler M. Kalekin O. Katz U. Kiessling D. Kouchner A. Kreter M. Kreykenbohm I. Kulikovskiy V. Lachaud C. Lahmann R. Lefevre D. Leonora E. Lotze M. Loucatos S. Marcelin M. Margiotta A. Marinelli A. Martinez-Mora J. A. Mele R. Melis K. Michael T. Migliozzi P. Moussa A. Navas S. Nezri E. Organokov M. Pavalas G. E. Pellegrino C. Perrina C. Piattelli P. Popa V. Pradier T. Quinn L. Racca C. Riccobene G. Sanchez-Losa A. Saldana M. Salvadori I. Samtleben D. F. E. Sanguineti M. Sapienza P. Schussler F. Sieger C. Spurio M. Stolarczyk T. Taiuti M. Tayalati Y. Trovato A. Turpin D. Tonnis C. Vallage B. Elewyck V. V. Versari F. Vivolo D. Vizzoca A. Wilms J. Zornoza J. D. Zniga J. All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data |
topic_facet |
astroparticle physic neutrinos |
description |
The ANTARES detector is at present the most sensitive neutrino telescope in the northern hemisphere. The highlysignificant cosmic neutrino excess observed by the Antarctic IceCube detector can be studied with ANTARES,exploiting its complementing field of view, exposure, and lower energy threshold. Searches for an all-flavor diffuseneutrino signal, covering nine years of ANTARES data taking, are presented in this Letter. Upward-going eventsare used to reduce the atmospheric muon background. This work includes for the first time in ANTARES bothtrack-like (mainly nm) and shower-like (mainly ne) events in this kind of analysis. Track-like events allow for anincrease of the effective volume of the detector thanks to the long path traveled by muons in rock and/or sea water.Shower-like events are well reconstructed only when the neutrino interaction vertex is close to, or inside, theinstrumented volume. A mild excess of high-energy events over the expected background is observed in nine yearsof ANTARES data in both samples. The best fit for a single power-law cosmic neutrino spectrum, in terms of perflavorflux at 100 TeV, is φ01f100 TeV (1.7±1.0) × 10-18GeV-1 cm-2 s-1 sr-1 with spectral index γ=2.4-0.4+0.5. The null cosmic flux assumption is rejected with a significance of 1.6δ. |
author2 |
Albert, A. Andre, M. Anghinolfi, M. Anton, G. Ardid, M. Aubert, J. -J. Aublin, J. Avgitas, T. Baret, B. Barrios-Marti, J. Basa, S. Belhorma, B. Bertin, V. Biagi, S. Bormuth, R. Bourret, S. Bouwhuis, M. C. Branzas, H. Bruijn, R. Brunner, J. Busto, J. Capone, A. Caramete, L. Carr, J. Celli, S. El Moursli, R. C. Chiarusi, T. Circella, M. Coelho, J. A. B. Coleiro, A. Coniglione, R. Costantini, H. Coyle, P. Creusot, A. Diaz, A. F. Deschamps, A. Bonis, G. D. Distefano, C. Palma, I. D. Domi, A. Donzaud, C. Dornic, D. Drouhin, D. Eberl, T. Bojaddaini, I. E. Khayati, N. E. Elsasser, D. Enzenhofer, A. Ettahiri, A. Fassi, F. |
format |
Article in Journal/Newspaper |
author |
Albert A. Andre M. Anghinolfi M. Anton G. Ardid M. Aubert J. -J. Aublin J. Avgitas T. Baret B. Barrios-Marti J. Basa S. Belhorma B. Bertin V. Biagi S. Bormuth R. Bourret S. Bouwhuis M. C. Branzas H. Bruijn R. Brunner J. Busto J. Capone A. Caramete L. Carr J. Celli S. El Moursli R. C. Chiarusi T. Circella M. Coelho J. A. B. Coleiro A. Coniglione R. Costantini H. Coyle P. Creusot A. Diaz A. F. Deschamps A. Bonis G. D. Distefano C. Palma I. D. Domi A. Donzaud C. Dornic D. Drouhin D. Eberl T. Bojaddaini I. E. Khayati N. E. Elsasser D. Enzenhofer A. Ettahiri A. Fassi F. Felis I. Fusco L. A. Gay P. Giordano V. Glotin H. Gregoire T. Ruiz R. G. Graf K. Hallmann S. Haren H. V. Heijboer A. J. Hello Y. Hernandez-Rey J. J. Hossl J. Hofestadt J. Illuminati G. James C. W. Jong M. D. Jongen M. Kadler M. Kalekin O. Katz U. Kiessling D. Kouchner A. Kreter M. Kreykenbohm I. Kulikovskiy V. Lachaud C. Lahmann R. Lefevre D. Leonora E. Lotze M. Loucatos S. Marcelin M. Margiotta A. Marinelli A. Martinez-Mora J. A. Mele R. Melis K. Michael T. Migliozzi P. Moussa A. Navas S. Nezri E. Organokov M. Pavalas G. E. Pellegrino C. Perrina C. Piattelli P. Popa V. Pradier T. Quinn L. Racca C. Riccobene G. Sanchez-Losa A. Saldana M. Salvadori I. Samtleben D. F. E. Sanguineti M. Sapienza P. Schussler F. Sieger C. Spurio M. Stolarczyk T. Taiuti M. Tayalati Y. Trovato A. Turpin D. Tonnis C. Vallage B. Elewyck V. V. Versari F. Vivolo D. Vizzoca A. Wilms J. Zornoza J. D. Zniga J. |
author_facet |
Albert A. Andre M. Anghinolfi M. Anton G. Ardid M. Aubert J. -J. Aublin J. Avgitas T. Baret B. Barrios-Marti J. Basa S. Belhorma B. Bertin V. Biagi S. Bormuth R. Bourret S. Bouwhuis M. C. Branzas H. Bruijn R. Brunner J. Busto J. Capone A. Caramete L. Carr J. Celli S. El Moursli R. C. Chiarusi T. Circella M. Coelho J. A. B. Coleiro A. Coniglione R. Costantini H. Coyle P. Creusot A. Diaz A. F. Deschamps A. Bonis G. D. Distefano C. Palma I. D. Domi A. Donzaud C. Dornic D. Drouhin D. Eberl T. Bojaddaini I. E. Khayati N. E. Elsasser D. Enzenhofer A. Ettahiri A. Fassi F. Felis I. Fusco L. A. Gay P. Giordano V. Glotin H. Gregoire T. Ruiz R. G. Graf K. Hallmann S. Haren H. V. Heijboer A. J. Hello Y. Hernandez-Rey J. J. Hossl J. Hofestadt J. Illuminati G. James C. W. Jong M. D. Jongen M. Kadler M. Kalekin O. Katz U. Kiessling D. Kouchner A. Kreter M. Kreykenbohm I. Kulikovskiy V. Lachaud C. Lahmann R. Lefevre D. Leonora E. Lotze M. Loucatos S. Marcelin M. Margiotta A. Marinelli A. Martinez-Mora J. A. Mele R. Melis K. Michael T. Migliozzi P. Moussa A. Navas S. Nezri E. Organokov M. Pavalas G. E. Pellegrino C. Perrina C. Piattelli P. Popa V. Pradier T. Quinn L. Racca C. Riccobene G. Sanchez-Losa A. Saldana M. Salvadori I. Samtleben D. F. E. Sanguineti M. Sapienza P. Schussler F. Sieger C. Spurio M. Stolarczyk T. Taiuti M. Tayalati Y. Trovato A. Turpin D. Tonnis C. Vallage B. Elewyck V. V. Versari F. Vivolo D. Vizzoca A. Wilms J. Zornoza J. D. Zniga J. |
author_sort |
Albert A. |
title |
All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data |
title_short |
All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data |
title_full |
All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data |
title_fullStr |
All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data |
title_full_unstemmed |
All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data |
title_sort |
all-flavor search for a diffuse flux of cosmic neutrinos with nine years of antares data |
publishDate |
2018 |
url |
http://hdl.handle.net/11386/4781460 https://doi.org/10.3847/2041-8213/aaa4f6 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000423182700004 volume:853 firstpage:L7 lastpage:L7 journal:THE ASTROPHYSICAL JOURNAL LETTERS http://hdl.handle.net/11386/4781460 doi:10.3847/2041-8213/aaa4f6 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85041193094 |
op_doi |
https://doi.org/10.3847/2041-8213/aaa4f6 |
container_title |
The Astrophysical Journal |
container_volume |
853 |
container_issue |
1 |
container_start_page |
L7 |
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1790604063313756160 |
spelling |
ftunisalernoiris:oai:www.iris.unisa.it:11386/4781460 2024-02-11T09:56:33+01:00 All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data Albert A. Andre M. Anghinolfi M. Anton G. Ardid M. Aubert J. -J. Aublin J. Avgitas T. Baret B. Barrios-Marti J. Basa S. Belhorma B. Bertin V. Biagi S. Bormuth R. Bourret S. Bouwhuis M. C. Branzas H. Bruijn R. Brunner J. Busto J. Capone A. Caramete L. Carr J. Celli S. El Moursli R. C. Chiarusi T. Circella M. Coelho J. A. B. Coleiro A. Coniglione R. Costantini H. Coyle P. Creusot A. Diaz A. F. Deschamps A. Bonis G. D. Distefano C. Palma I. D. Domi A. Donzaud C. Dornic D. Drouhin D. Eberl T. Bojaddaini I. E. Khayati N. E. Elsasser D. Enzenhofer A. Ettahiri A. Fassi F. Felis I. Fusco L. A. Gay P. Giordano V. Glotin H. Gregoire T. Ruiz R. G. Graf K. Hallmann S. Haren H. V. Heijboer A. J. Hello Y. Hernandez-Rey J. J. Hossl J. Hofestadt J. Illuminati G. James C. W. Jong M. D. Jongen M. Kadler M. Kalekin O. Katz U. Kiessling D. Kouchner A. Kreter M. Kreykenbohm I. Kulikovskiy V. Lachaud C. Lahmann R. Lefevre D. Leonora E. Lotze M. Loucatos S. Marcelin M. Margiotta A. Marinelli A. Martinez-Mora J. A. Mele R. Melis K. Michael T. Migliozzi P. Moussa A. Navas S. Nezri E. Organokov M. Pavalas G. E. Pellegrino C. Perrina C. Piattelli P. Popa V. Pradier T. Quinn L. Racca C. Riccobene G. Sanchez-Losa A. Saldana M. Salvadori I. Samtleben D. F. E. Sanguineti M. Sapienza P. Schussler F. Sieger C. Spurio M. Stolarczyk T. Taiuti M. Tayalati Y. Trovato A. Turpin D. Tonnis C. Vallage B. Elewyck V. V. Versari F. Vivolo D. Vizzoca A. Wilms J. Zornoza J. D. Zniga J. Albert, A. Andre, M. Anghinolfi, M. Anton, G. Ardid, M. Aubert, J. -J. Aublin, J. Avgitas, T. Baret, B. Barrios-Marti, J. Basa, S. Belhorma, B. Bertin, V. Biagi, S. Bormuth, R. Bourret, S. Bouwhuis, M. C. Branzas, H. Bruijn, R. Brunner, J. Busto, J. Capone, A. Caramete, L. Carr, J. Celli, S. El Moursli, R. C. Chiarusi, T. Circella, M. Coelho, J. A. B. Coleiro, A. Coniglione, R. Costantini, H. Coyle, P. Creusot, A. Diaz, A. F. Deschamps, A. Bonis, G. D. Distefano, C. Palma, I. D. Domi, A. Donzaud, C. Dornic, D. Drouhin, D. Eberl, T. Bojaddaini, I. E. Khayati, N. E. Elsasser, D. Enzenhofer, A. Ettahiri, A. Fassi, F. 2018 http://hdl.handle.net/11386/4781460 https://doi.org/10.3847/2041-8213/aaa4f6 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000423182700004 volume:853 firstpage:L7 lastpage:L7 journal:THE ASTROPHYSICAL JOURNAL LETTERS http://hdl.handle.net/11386/4781460 doi:10.3847/2041-8213/aaa4f6 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85041193094 astroparticle physic neutrinos info:eu-repo/semantics/article 2018 ftunisalernoiris https://doi.org/10.3847/2041-8213/aaa4f6 2024-01-24T17:48:14Z The ANTARES detector is at present the most sensitive neutrino telescope in the northern hemisphere. The highlysignificant cosmic neutrino excess observed by the Antarctic IceCube detector can be studied with ANTARES,exploiting its complementing field of view, exposure, and lower energy threshold. Searches for an all-flavor diffuseneutrino signal, covering nine years of ANTARES data taking, are presented in this Letter. Upward-going eventsare used to reduce the atmospheric muon background. This work includes for the first time in ANTARES bothtrack-like (mainly nm) and shower-like (mainly ne) events in this kind of analysis. Track-like events allow for anincrease of the effective volume of the detector thanks to the long path traveled by muons in rock and/or sea water.Shower-like events are well reconstructed only when the neutrino interaction vertex is close to, or inside, theinstrumented volume. A mild excess of high-energy events over the expected background is observed in nine yearsof ANTARES data in both samples. The best fit for a single power-law cosmic neutrino spectrum, in terms of perflavorflux at 100 TeV, is φ01f100 TeV (1.7±1.0) × 10-18GeV-1 cm-2 s-1 sr-1 with spectral index γ=2.4-0.4+0.5. The null cosmic flux assumption is rejected with a significance of 1.6δ. Article in Journal/Newspaper Antarc* Antarctic EleA@Unisa (Università degli Studi di Salerno) Antarctic The Antarctic The Astrophysical Journal 853 1 L7 |