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

M. L. Ahnen; S. Ansoldi; L. A. Antonelli; C. Arcaro; D. Baack; A. Babić; B. Banerjee; P. Bangale; U. Barres de Almeida; J. A. Barrio; J. Becerra González; W. Bednarek; E. Bernardini; R. Ch Berse; A. Berti; W. Bhattacharyya; A. Biland; O. Blanch; G. Bonnoli; R. Carosi; A. Carosi; G. Ceribella; A. Chatterjee; S. M. Colak; P. Colin; E. Colombo; J. L. Contreras; J. Cortina; S. Covino; P. Cumani; P. Da Vela; F. Dazzi; A. De Angelis; B. De Lotto; M. Delfino; J. Delgado; F. Di Pierro; A. Domínguez; D. Dominis Prester; D. Dorner; M. Doro; S. Einecke; D. Elsaesser; V. Fallah Ramazani; A. Fernández-Barral; D. Fidalgo; M. V. Fonseca; L. Font; C. Fruck; D. Galindo; R. J. García López; M. Garczarczyk; M. Gaug; P. Giammaria; N. Godinović; D. Góra; D. Guberman; D. Hadasch; A. Hahn; T. Hassan; M. Hayashida; J. Herrera; J. Hose; D. Hrupec; K. Ishio; Y. Konno; H. Kubo; J. Kushida; D. Kuveždić; D. Lelas; E. Lindfors; S. Lombardi; F. Longo; M. López; C. Maggio; P. Majumdar; M. Makariev; G. Maneva; M. Manganaro; K. Mannheim; L. Maraschi; M. Mariotti; M. Martínez; S. Masuda; D. Mazin; K. Mielke; M. Minev; J. M. Miranda; R. Mirzoyan; A. Moralejo; V. Moreno; E. Moretti; T. Nagayoshi; V. Neustroev; A. Niedzwiecki; M. Nievas Rosillo; C. Nigro; K. Nilsson; D. Ninci; K. Nishijima

doi:10.1016/j.astropartphys.2018.05.002

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

M. L. Ahnen, S. Ansoldi, L. A. Antonelli, C. Arcaro, D. Baack, A. Babić, B. Banerjee, P. Bangale, U. Barres de Almeida, J. A. Barrio, J. Becerra González, W. Bednarek, E. Bernardini, R. Ch Berse, A. Berti, W. Bhattacharyya, A. Biland, O. Blanch, G. Bonnoli, R. CarosiA. Carosi, G. Ceribella, A. Chatterjee, S. M. Colak, P. Colin, E. Colombo, J. L. Contreras, J. Cortina, S. Covino, P. Cumani, P. Da Vela, F. Dazzi, A. De Angelis, B. De Lotto, M. Delfino, J. Delgado, F. Di Pierro, A. Domínguez, D. Dominis Prester, D. Dorner, M. Doro, S. Einecke, D. Elsaesser, V. Fallah Ramazani, A. Fernández-Barral, D. Fidalgo, M. V. Fonseca, L. Font, C. Fruck, D. Galindo, R. J. García López, M. Garczarczyk, M. Gaug, P. Giammaria, N. Godinović, D. Góra, D. Guberman, D. Hadasch, A. Hahn, T. Hassan, M. Hayashida, J. Herrera, J. Hose, D. Hrupec, K. Ishio, Y. Konno, H. Kubo, J. Kushida, D. Kuveždić, D. Lelas, E. Lindfors, S. Lombardi, F. Longo, M. López, C. Maggio, P. Majumdar, M. Makariev, G. Maneva, M. Manganaro, K. Mannheim, L. Maraschi, M. Mariotti, M. Martínez, S. Masuda, D. Mazin, K. Mielke, M. Minev, J. M. Miranda, R. Mirzoyan, A. Moralejo, V. Moreno, E. Moretti, T. Nagayoshi, V. Neustroev, A. Niedzwiecki, M. Nievas Rosillo, C. Nigro, K. Nilsson, D. Ninci, K. Nishijima

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Abstract

© 2018 Elsevier B.V. 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°. 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 h 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 × 1015 eV to 3.0 × 1018 eV of about Eντ2×ϕ(Eντ)<2.0×10−4 GeV cm−2 s−1 for an assumed power-law neutrino spectrum with spectral index γ=−2. However, with 300 h and in case of an optimistic neutrino flare model, limits of the level down to Eντ2×ϕ(Eντ)<8.4×10−6 GeV cm−2 s−1 can be expected.

Original language	English
Pages (from-to)	77-88
Journal	Astroparticle Physics
Volume	102
DOIs	https://doi.org/10.1016/j.astropartphys.2018.05.002
Publication status	Published - 1 Nov 2018

Keywords

Cherenkov telescopes
Gamma-ray astronomy
Tau neutrinos

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10.1016/j.astropartphys.2018.05.002

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Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Arcaro, C., Baack, D., Babić, A., Banerjee, B., Bangale, P., Barres de Almeida, U., Barrio, J. A., González, J. B., Bednarek, W., Bernardini, E., Berse, R. C., Berti, A., Bhattacharyya, W., Biland, A., Blanch, O., Bonnoli, G., ... Nishijima, K. (2018). Limits on the flux of tau neutrinos from 1 PeV to 3 EeV with the MAGIC telescopes. Astroparticle Physics, 102, 77-88. https://doi.org/10.1016/j.astropartphys.2018.05.002

Ahnen, M. L. ; Ansoldi, S. ; Antonelli, L. A. ; Arcaro, C. ; Baack, D. ; Babić, A. ; 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. Dominis ; 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, N. ; Góra, D. ; Guberman, D. ; Hadasch, D. ; Hahn, A. ; Hassan, T. ; Hayashida, M. ; Herrera, J. ; Hose, J. ; Hrupec, D. ; Ishio, K. ; Konno, Y. ; Kubo, H. ; Kushida, J. ; Kuveždić, D. ; Lelas, D. ; Lindfors, E. ; Lombardi, S. ; Longo, F. ; López, M. ; Maggio, C. ; Majumdar, P. ; Makariev, M. ; Maneva, G. ; Manganaro, M. ; 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. / Limits on the flux of tau neutrinos from 1 PeV to 3 EeV with the MAGIC telescopes. In: Astroparticle Physics. 2018 ; Vol. 102. pp. 77-88.

@article{775044e256284658916179db3bd86e27,

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

abstract = "{\textcopyright} 2018 Elsevier B.V. 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°. 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 h 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 × 1015 eV to 3.0 × 1018 eV of about Eντ2×ϕ(Eντ)<2.0×10−4 GeV cm−2 s−1 for an assumed power-law neutrino spectrum with spectral index γ=−2. However, with 300 h and in case of an optimistic neutrino flare model, limits of the level down to Eντ2×ϕ(Eντ)<8.4×10−6 GeV cm−2 s−1 can be expected.",

keywords = "Cherenkov telescopes, Gamma-ray astronomy, Tau neutrinos",

author = "Ahnen, {M. L.} and S. Ansoldi and Antonelli, {L. A.} and C. Arcaro and D. Baack and A. Babi{\'c} and B. Banerjee and P. Bangale and {Barres de Almeida}, U. and Barrio, {J. A.} and Gonz{\'a}lez, {J. Becerra} and W. Bednarek and E. Bernardini and Berse, {R. Ch} and A. Berti and W. Bhattacharyya and A. Biland and O. Blanch and G. Bonnoli and R. Carosi and A. Carosi and G. Ceribella and A. Chatterjee and Colak, {S. M.} and P. Colin and E. Colombo and Contreras, {J. L.} and J. Cortina and S. Covino and P. Cumani and Vela, {P. Da} and F. Dazzi and Angelis, {A. De} and Lotto, {B. De} and M. Delfino and J. Delgado and Pierro, {F. Di} and A. Dom{\'i}nguez and Prester, {D. Dominis} and D. Dorner and M. Doro and S. Einecke and D. Elsaesser and {Fallah Ramazani}, V. and A. Fern{\'a}ndez-Barral and D. Fidalgo and Fonseca, {M. V.} and L. Font and C. Fruck and D. Galindo and {Garc{\'i}a L{\'o}pez}, {R. J.} and M. Garczarczyk and M. Gaug and P. Giammaria and N. Godinovi{\'c} and D. G{\'o}ra and D. Guberman and D. Hadasch and A. Hahn and T. Hassan and M. Hayashida and J. Herrera and J. Hose and D. Hrupec and K. Ishio and Y. Konno and H. Kubo and J. Kushida and D. Kuve{\v z}di{\'c} and D. Lelas and E. Lindfors and S. Lombardi and F. Longo and M. L{\'o}pez and C. Maggio and P. Majumdar and M. Makariev and G. Maneva and M. Manganaro and K. Mannheim and L. Maraschi and M. Mariotti and M. Mart{\'i}nez and S. Masuda and D. Mazin and K. Mielke and M. Minev and Miranda, {J. M.} and R. Mirzoyan and A. Moralejo and V. Moreno and E. Moretti and T. Nagayoshi and V. Neustroev and A. Niedzwiecki and {Nievas Rosillo}, M. and C. Nigro and K. Nilsson and D. Ninci and K. Nishijima",

year = "2018",

month = nov,

day = "1",

doi = "10.1016/j.astropartphys.2018.05.002",

language = "English",

volume = "102",

pages = "77--88",

journal = "Astroparticle Physics",

issn = "0927-6505",

}

Ahnen, ML, Ansoldi, S, Antonelli, LA, Arcaro, C, Baack, D, Babić, A, Banerjee, B, Bangale, P, Barres de Almeida, U, Barrio, JA, González, JB, Bednarek, W, Bernardini, E, Berse, RC, Berti, A, Bhattacharyya, W, Biland, A, Blanch, O, Bonnoli, G, Carosi, R, Carosi, A, Ceribella, G, Chatterjee, A, Colak, SM, Colin, P, Colombo, E, Contreras, JL, Cortina, J, Covino, S, Cumani, P, Vela, PD, Dazzi, F, Angelis, AD, Lotto, BD, Delfino, M, Delgado, J, Pierro, FD, Domínguez, A, Prester, DD, Dorner, D, Doro, M, Einecke, S, Elsaesser, D, Fallah Ramazani, V, Fernández-Barral, A, Fidalgo, D, Fonseca, MV, Font, L, Fruck, C, Galindo, D, García López, RJ, Garczarczyk, M, Gaug, M, Giammaria, P, Godinović, N, Góra, D, Guberman, D, Hadasch, D, Hahn, A, Hassan, T, Hayashida, M, Herrera, J, Hose, J, Hrupec, D, Ishio, K, Konno, Y, Kubo, H, Kushida, J, Kuveždić, D, Lelas, D, Lindfors, E, Lombardi, S, Longo, F, López, M, Maggio, C, Majumdar, P, Makariev, M, Maneva, G, Manganaro, M, Mannheim, K, Maraschi, L, Mariotti, M, Martínez, M, Masuda, S, Mazin, D, Mielke, K, Minev, M, Miranda, JM, 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 2018, 'Limits on the flux of tau neutrinos from 1 PeV to 3 EeV with the MAGIC telescopes', Astroparticle Physics, vol. 102, pp. 77-88. https://doi.org/10.1016/j.astropartphys.2018.05.002

Limits on the flux of tau neutrinos from 1 PeV to 3 EeV with the MAGIC telescopes. / Ahnen, M. L.; Ansoldi, S.; Antonelli, L. A.; Arcaro, C.; Baack, D.; Babić, A.; 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. Dominis; 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, N.; Góra, D.; Guberman, D.; Hadasch, D.; Hahn, A.; Hassan, T.; Hayashida, M.; Herrera, J.; Hose, J.; Hrupec, D.; Ishio, K.; Konno, Y.; Kubo, H.; Kushida, J.; Kuveždić, D.; Lelas, D.; Lindfors, E.; Lombardi, S.; Longo, F.; López, M.; Maggio, C.; Majumdar, P.; Makariev, M.; Maneva, G.; Manganaro, M.; 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.

In: Astroparticle Physics, Vol. 102, 01.11.2018, p. 77-88.

Research output: Contribution to journal › Article › Research

TY - JOUR

T1 - Limits on the flux of tau neutrinos from 1 PeV to 3 EeV with the MAGIC telescopes

AU - Ahnen, M. L.

AU - Ansoldi, S.

AU - Antonelli, L. A.

AU - Arcaro, C.

AU - Baack, D.

AU - Babić, A.

AU - Banerjee, B.

AU - Bangale, P.

AU - Barres de Almeida, U.

AU - Barrio, J. A.

AU - González, J. Becerra

AU - Bednarek, W.

AU - Bernardini, E.

AU - Berse, R. Ch

AU - Berti, A.

AU - Bhattacharyya, W.

AU - Biland, A.

AU - Blanch, O.

AU - Bonnoli, G.

AU - Carosi, R.

AU - Carosi, A.

AU - Ceribella, G.

AU - Chatterjee, A.

AU - Colak, S. M.

AU - Colin, P.

AU - Colombo, E.

AU - Contreras, J. L.

AU - Cortina, J.

AU - Covino, S.

AU - Cumani, P.

AU - Vela, P. Da

AU - Dazzi, F.

AU - Angelis, A. De

AU - Lotto, B. De

AU - Delfino, M.

AU - Delgado, J.

AU - Pierro, F. Di

AU - Domínguez, A.

AU - Prester, D. Dominis

AU - Dorner, D.

AU - Doro, M.

AU - Einecke, S.

AU - Elsaesser, D.

AU - Fallah Ramazani, V.

AU - Fernández-Barral, A.

AU - Fidalgo, D.

AU - Fonseca, M. V.

AU - Font, L.

AU - Fruck, C.

AU - Galindo, D.

AU - García López, R. J.

AU - Garczarczyk, M.

AU - Gaug, M.

AU - Giammaria, P.

AU - Godinović, N.

AU - Góra, D.

AU - Guberman, D.

AU - Hadasch, D.

AU - Hahn, A.

AU - Hassan, T.

AU - Hayashida, M.

AU - Herrera, J.

AU - Hose, J.

AU - Hrupec, D.

AU - Ishio, K.

AU - Konno, Y.

AU - Kubo, H.

AU - Kushida, J.

AU - Kuveždić, D.

AU - Lelas, D.

AU - Lindfors, E.

AU - Lombardi, S.

AU - Longo, F.

AU - López, M.

AU - Maggio, C.

AU - Majumdar, P.

AU - Makariev, M.

AU - Maneva, G.

AU - Manganaro, M.

AU - Mannheim, K.

AU - Maraschi, L.

AU - Mariotti, M.

AU - Martínez, M.

AU - Masuda, S.

AU - Mazin, D.

AU - Mielke, K.

AU - Minev, M.

AU - Miranda, J. M.

AU - Mirzoyan, R.

AU - Moralejo, A.

AU - Moreno, V.

AU - Moretti, E.

AU - Nagayoshi, T.

AU - Neustroev, V.

AU - Niedzwiecki, A.

AU - Nievas Rosillo, M.

AU - Nigro, C.

AU - Nilsson, K.

AU - Ninci, D.

AU - Nishijima, K.

PY - 2018/11/1

Y1 - 2018/11/1

N2 - © 2018 Elsevier B.V. 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°. 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 h 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 × 1015 eV to 3.0 × 1018 eV of about Eντ2×ϕ(Eντ)<2.0×10−4 GeV cm−2 s−1 for an assumed power-law neutrino spectrum with spectral index γ=−2. However, with 300 h and in case of an optimistic neutrino flare model, limits of the level down to Eντ2×ϕ(Eντ)<8.4×10−6 GeV cm−2 s−1 can be expected.

AB - © 2018 Elsevier B.V. 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°. 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 h 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 × 1015 eV to 3.0 × 1018 eV of about Eντ2×ϕ(Eντ)<2.0×10−4 GeV cm−2 s−1 for an assumed power-law neutrino spectrum with spectral index γ=−2. However, with 300 h and in case of an optimistic neutrino flare model, limits of the level down to Eντ2×ϕ(Eντ)<8.4×10−6 GeV cm−2 s−1 can be expected.

KW - Cherenkov telescopes

KW - Gamma-ray astronomy

KW - Tau neutrinos

U2 - 10.1016/j.astropartphys.2018.05.002

DO - 10.1016/j.astropartphys.2018.05.002

M3 - Article

VL - 102

SP - 77

EP - 88

JO - Astroparticle Physics

JF - Astroparticle Physics

SN - 0927-6505

ER -

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

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