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Limits on the flux of tau neutrinos from 1 PeV to 3 EeV with the MAGIC telescopes


(MAGIC Collaboration) Ahnen, M.L.; ; Ansoldi, S.; Antonelli, L.A.; Arcaro, C.; Baack, D.; Babić, Ana; Banerjee, B.; Bangale, P.; Barres de Almeida, U. et al.
Limits on the flux of tau neutrinos from 1 PeV to 3 EeV with the MAGIC telescopes // Astroparticle physics, 102 (2018), 1; 77-78 doi:10.1016/j.astropartphys.2018.05.002 (međunarodna recenzija, članak, znanstveni)


Naslov
Limits on the flux of tau neutrinos from 1 PeV to 3 EeV with the MAGIC telescopes

Autori
Ahnen, M.L. ; ; Ansoldi, S. ; Antonelli, L.A. ; Arcaro, C. ; Baack, D. ; Babić, Ana ; Banerjee, B. ; Bangale, P. ; Barres de Almeida, U. ; Barrio, J.A. ; González, J. Becerra ; Bednarek, W. ; Bernardini, E. ; Berse, R.Ch. ; Berti, A. ; Bhattacharyya, W. ; Biland, A. ; Blanch, O. ; Bonnoli, G. ; Carosi, R. ; Carosi, A. ; Ceribella, G. ; Chatterjee, A. ; Colak, S.M. ; Colin, P. ; Colombo, E. ; Contreras, J.L. ; Cortina, J. ; Covino, S. ; Cumani, P. ; Vela, P. Da ; Dazzi, F. ; Angelis, A. De ; Lotto, B. De ; Delfino, M. ; Delgado, J. ; Pierro, F. Di ; Domínguez, A. ; Prester D. Dijana ; Dorner, D. ; Doro, M. ; Einecke, S. ; Elsaesser, D. ; Fallah Ramazani, V. ; Fernández-Barral, A. ; Fidalgo, D. ; Fonseca, M.V. ; Font, L. ; Fruck, C. ; Galindo, D. ; García López, R.J. ; Garczarczyk, M. ; Gaug, M. ; Giammaria, P. ; Godinović, Nikola ; Góra, D. ; Guberman, D. ; Hadasch, D. ; Hahn, A. ; Hassan, T. ; Hayashida, M. ; Herrera, J. ; Hose, J. ; Hrupec, Dario ; ; Ishio, K. ; Konno, Y. ; Kubo, H. ; Kushida, J. ; Kuveždić, Danijela ; Lelas, Damir ; Lindfors, E. ; Lombardi, S. ; Longo, F. ; López, M. ; Maggio, C. ; Majumdar, P. ; Makariev, M. ; Maneva, G. ; Manganaro, Marina ; Mannheim, K. ; Maraschi, L. ; Mariotti, M. ; Martínez, M. ; Masuda, S. ; Mazin, D. ; Mielke, K. ; Minev, M. ; Miranda, J.M. ; Mirzoyan, R. ; Moralejo, A. ; Moreno, V. ; Moretti, E. ; Nagayoshi, T. ; Neustroev, V. ; Niedzwiecki, A. ; Nievas Rosillo, M. ; Nigro, C. ; Nilsson, K. ; Ninci, D. ; Nishijima, K. ; Noda, K. ; Nogués, L. ; Paiano, S. ; Palacio, J. ; Paneque, D. ; Paoletti, R. ; Paredes, J.M. ; Pedaletti, G. ; Peresano, M. ; Persic, M. ; Prada Moroni, P.G. ; Prandini, E. ; Puljak, Ivica ; Garcia, J.R. ; Reichardt, I. ; Rhode, W. ; Ribó, M. ; Rico, J. ; Righi, C. ; Rugliancich, A. ; Saito, T. ; Satalecka, K. ; Schweizer, T. ; Sitarek, J. ; Šnidarić, Iva ; Sobczynska, D. ; Stamerra, A. ; Strzys, M. ; Surić, Tihomir ; Takahashi, M. ; Takalo, L. ; Tavecchio, F. ; Temnikov, P. ; Terzić, Tomislav ; , T. ; Teshima, M. ; Torres-Albà, N. ; Treves, A. ; Tsujimoto, S. ; Vanzo, G. ; Vazquez Acosta, M. ; Vovk, I. ; Ward, J.E. ; Will, M. ; Zarić, Darko

Kolaboracija
MAGIC Collaboration

Izvornik
Astroparticle physics (0927-6505) 102 (2018), 1; 77-78

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Gamma-ray astronomy ; Cherenkov telescopes ; tau neutrinos

Sažetak
A search for tau neutrino induced showers with the MAGIC telescopes is presented. The MAGIC telescopes located at an altitude of 2200 m a.s.l. in the Canary Island of La Palma, can point towards the horizon or a few degrees below across an azimuthal range of about 80 degrees. This provides a possibility to search for air showers induced by tau leptons arising from interactions of tau neutrinos in the Earth crust or the surrounding ocean. In this paper we show how such air showers can be discriminated from the background of very inclined hadronic showers by using Monte Carlo simulations. Taking into account the orography of the site, the point source acceptance and the event rates expected have been calculated for a sample of generic neutrino fluxes from photo-hadronic interactions in AGNs. The analysis of about 30 hours of data taken towards the sea leads to a 90% C.L. point source limit for tau neutrinos in the energy range from 1.0 × 10^15 eV to 3.0 × 10^18 eV of about E^2_{; ; ; ; ; ντ}; ; ; ; ; × φ(E_{; ; ; ; ; ντ}; ; ; ; ; ) < 2.0 × 10^{; ; ; ; ; −4}; ; ; ; ; GeV cm^{; ; ; ; ; −2}; ; ; ; ; s^{; ; ; ; ; −1}; ; ; ; ; for an assumed power-law neutrino spectrum with spectral index γ=-2. However, with 300 hours and in case of an optimistic neutrino flare model, limits of the level down to E^2_{; ; ; ; ; ντ}; ; ; ; ; × φ(E_{; ; ; ; ; ντ}; ; ; ; ; ) < 8.4 × 10^{; ; ; ; ; −6}; ; ; ; ; GeV cm^{; ; ; ; ; −2}; ; ; ; ; s^{; ; ; ; ; −1}; ; ; ; ; can be expected.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
HRZZ-IP-06-2016-9782

Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Fakultet elektrotehnike i računarstva, Zagreb,
Institut "Ruđer Bošković", Zagreb,
Sveučilište u Osijeku - Odjel za fiziku,
Sveučilište u Rijeci - Odjel za fiziku

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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