Search for a diffuse astrophysical neutrino flux from the Galactic Ridge with KM3NeT/ARCA

KM3NeT Collaboration

doi:10.22323/1.501.1039

Search for a diffuse astrophysical neutrino flux from the Galactic Ridge with KM3NeT/ARCA

KM3NeT Collaboration

Physics

Badji Mokhtar University
University of Florence
National Institute for Nuclear Physics
Université de Strasbourg
Université de Haute-Alsace
Khalifa University of Science and Technology
Aix-Marseille Université
University of Valencia
University of Rome La Sapienza
Polytechnic University of Catalonia
Nantes Université
Polytechnic University of Valencia
Université de Paris
University of Genoa
Université de Caen
North West University
University of Bologna
University of Campania Luigi Vanvitelli
University of Hull
Czech Technical University in Prague
Comenius University
National Institute for Subatomic Physics
Mohammed V University in Rabat
University of Salerno
University of Naples Federico II
National Institute for Laser, Plasma and Radiation Physics
University of Amsterdam
Netherlands Organisation for Applied Scientific Research
Cadi Ayyad University
University of the Witwatersrand
University of Catania
Princeton University
Université catholique de Louvain
University of Granada
Friedrich-Alexander University Erlangen-Nürnberg
Demokritos National Centre for Scientific Research
Mohamed I University
Western Sydney University
Royal Netherlands Institute for Sea Research - NIOZ
Leiden University
AGH University of Science and Technology
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Ivane Javakhishvili Tbilisi State University
The University of Georgia, Tbilisi
Institut universitaire de France
Max Planck Institute for Radio Astronomy
Sharjah Academy for Astronomy, Space Sciences & Technology
Charles University
Harvard University
Mohammed VI Polytechnic University
Université Montpellier 2

Research output: Contribution to journal › Conference article › peer-review

Abstract

KM3NeT/ARCA is a second-generation neutrino telescope currently under construction in the Mediterranean Sea. Its capability to collect high-quality data has been recently demonstrated by the detection of an ultra-high-energy neutrino of astrophysical origin. Located in the Northern Hemisphere and operating with a high duty cycle, the detector has an optimal view of the Galactic Center, primarily via well-reconstructed track-like events. This study analyses the KM3NeT/ARCA dataset acquired during the detector operation from September 2021 till September 2023 to search for an excess of neutrino events from the Galactic Ridge, defined by Galactic coordinates |b| < 2° and |l| < 30°. This region, previously investigated also using ANTARES data, is expected to exhibit a harder spectral index for cosmic ray emission compared to other areas of the Galactic plane.

Original language	English
Article number	1039
Journal	Proceedings of Science
Volume	501
DOIs	https://doi.org/10.22323/1.501.1039
Publication status	Published - 30 Dec 2025
Event	39th International Cosmic Ray Conference, ICRC 2025 - Geneva, Switzerland Duration: 15 Jul 2025 → 24 Jul 2025

ASJC Scopus subject areas

Multidisciplinary

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10.22323/1.501.1039

Cite this

@article{62a1872388224b068c8db6ce8cef75ef,

title = "Search for a diffuse astrophysical neutrino flux from the Galactic Ridge with KM3NeT/ARCA",

abstract = "KM3NeT/ARCA is a second-generation neutrino telescope currently under construction in the Mediterranean Sea. Its capability to collect high-quality data has been recently demonstrated by the detection of an ultra-high-energy neutrino of astrophysical origin. Located in the Northern Hemisphere and operating with a high duty cycle, the detector has an optimal view of the Galactic Center, primarily via well-reconstructed track-like events. This study analyses the KM3NeT/ARCA dataset acquired during the detector operation from September 2021 till September 2023 to search for an excess of neutrino events from the Galactic Ridge, defined by Galactic coordinates |b| < 2° and |l| < 30°. This region, previously investigated also using ANTARES data, is expected to exhibit a harder spectral index for cosmic ray emission compared to other areas of the Galactic plane.",

author = "\{KM3NeT Collaboration\} and Bouasla, \{Amani Besma\} and Reda Attallah and O. Adriani and A. Albert and Alhebsi, \{A. R.\} and S. Alshalloudi and M. Alshamsi and \{Alves Garre\}, S. and F. Ameli and M. Andre and L. Aphecetche and M. Ardid and S. Ardid and J. Aublin and F. Badaracco and L. Bailly-Salins and B. Baret and A. Bariego-Quintana and M. Barnard and Y. Becherini and M. Bendahman and \{Benfenati Gualandi\}, F. and M. Benhassi and Benoit, \{D. M.\} and Z. Be{\v n}u{\v s}ov{\'a} and E. Berbee and E. Berti and V. Bertin and P. Betti and S. Biagi and M. Boettcher and D. Bonanno and M. Bond{\`i} and S. Bottai and Bouasla, \{A. B.\} and J. Boumaaza and M. Bouta and M. Bouwhuis and C. Bozza and Bozza, \{R. M.\} and H. Br{\^a}nza{\c s} and F. Bretaudeau and M. Breuhaus and R. Bruijn and J. Brunner and R. Bruno and E. Buis and R. Buompane and I. Burriel and S. Razzaque",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s); 39th International Cosmic Ray Conference, ICRC 2025 ; Conference date: 15-07-2025 Through 24-07-2025",

year = "2025",

month = dec,

day = "30",

doi = "10.22323/1.501.1039",

language = "English",

volume = "501",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

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TY - JOUR

T1 - Search for a diffuse astrophysical neutrino flux from the Galactic Ridge with KM3NeT/ARCA

AU - KM3NeT Collaboration

AU - Bouasla, Amani Besma

AU - Attallah, Reda

AU - Adriani, O.

AU - Albert, A.

AU - Alhebsi, A. R.

AU - Alshalloudi, S.

AU - Alshamsi, M.

AU - Alves Garre, S.

AU - Ameli, F.

AU - Andre, M.

AU - Aphecetche, L.

AU - Ardid, M.

AU - Ardid, S.

AU - Aublin, J.

AU - Badaracco, F.

AU - Bailly-Salins, L.

AU - Baret, B.

AU - Bariego-Quintana, A.

AU - Barnard, M.

AU - Becherini, Y.

AU - Bendahman, M.

AU - Benfenati Gualandi, F.

AU - Benhassi, M.

AU - Benoit, D. M.

AU - Beňušová, Z.

AU - Berbee, E.

AU - Berti, E.

AU - Bertin, V.

AU - Betti, P.

AU - Biagi, S.

AU - Boettcher, M.

AU - Bonanno, D.

AU - Bondì, M.

AU - Bottai, S.

AU - Bouasla, A. B.

AU - Boumaaza, J.

AU - Bouta, M.

AU - Bouwhuis, M.

AU - Bozza, C.

AU - Bozza, R. M.

AU - Brânzaş, H.

AU - Bretaudeau, F.

AU - Breuhaus, M.

AU - Bruijn, R.

AU - Brunner, J.

AU - Bruno, R.

AU - Buis, E.

AU - Buompane, R.

AU - Burriel, I.

AU - Razzaque, S.

PY - 2025/12/30

Y1 - 2025/12/30

N2 - KM3NeT/ARCA is a second-generation neutrino telescope currently under construction in the Mediterranean Sea. Its capability to collect high-quality data has been recently demonstrated by the detection of an ultra-high-energy neutrino of astrophysical origin. Located in the Northern Hemisphere and operating with a high duty cycle, the detector has an optimal view of the Galactic Center, primarily via well-reconstructed track-like events. This study analyses the KM3NeT/ARCA dataset acquired during the detector operation from September 2021 till September 2023 to search for an excess of neutrino events from the Galactic Ridge, defined by Galactic coordinates |b| < 2° and |l| < 30°. This region, previously investigated also using ANTARES data, is expected to exhibit a harder spectral index for cosmic ray emission compared to other areas of the Galactic plane.

AB - KM3NeT/ARCA is a second-generation neutrino telescope currently under construction in the Mediterranean Sea. Its capability to collect high-quality data has been recently demonstrated by the detection of an ultra-high-energy neutrino of astrophysical origin. Located in the Northern Hemisphere and operating with a high duty cycle, the detector has an optimal view of the Galactic Center, primarily via well-reconstructed track-like events. This study analyses the KM3NeT/ARCA dataset acquired during the detector operation from September 2021 till September 2023 to search for an excess of neutrino events from the Galactic Ridge, defined by Galactic coordinates |b| < 2° and |l| < 30°. This region, previously investigated also using ANTARES data, is expected to exhibit a harder spectral index for cosmic ray emission compared to other areas of the Galactic plane.

UR - https://www.scopus.com/pages/publications/105029055318

U2 - 10.22323/1.501.1039

DO - 10.22323/1.501.1039

M3 - Conference article

AN - SCOPUS:105029055318

SN - 1824-8039

VL - 501

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 1039

T2 - 39th International Cosmic Ray Conference, ICRC 2025

Y2 - 15 July 2025 through 24 July 2025

ER -

Search for a diffuse astrophysical neutrino flux from the Galactic Ridge with KM3NeT/ARCA

Abstract

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