TY  - JOUR
AU  - Fiorillo
AU  - Vliet, Arjen René van
AU  - Morisi, Stefano
AU  - Winter, Walter
TI  - Unified thermal model for photohadronic neutrino production in astrophysical sources
JO  - Journal of cosmology and astroparticle physics
VL  - 2021
IS  - 07
SN  - 1475-7508
CY  - London
PB  - IOP
M1  - PUBDB-2021-01548
M1  - DESY-21-045
M1  - arXiv:2103.16577
SP  - 028 (1-38)
PY  - 2021
N1  - JCAP 07 (2021) 028. 38 pages, 13 figures; data available at https://github.com/damianofiorillo/Unified-thermal-model
AB  - High-energy astrophysical neutrino fluxes are, for many applications, modeled as simple power laws as a function of energy. While this is reasonable in the case of neutrino production in hadronuclear pp sources, it typically does not capture the behavior in photohadronic pγ sources: in that case, the neutrino spectrum depends on the properties of the target photons the cosmic rays collide with and on possible magnetic-field effects on the secondary pions and muons. We show that the neutrino production from known photohadronic sources can be reproduced by a thermal (black-body) target-photon spectrum if one suitably adjusts the temperature,  thanks to multi-pion production processes. This allows discussing neutrino production from most known pγ sources, such as gamma-ray bursts, active galactic nuclei and tidal disruption events, in terms of a few parameters. We apply this thermal model to study the sensitivity of different classes of neutrino telescopes to photohadronic sources: we classify the model parameter space according to which experiment is most suitable for detection of a specific source class and demonstrate that different experiment classes, such as dense arrays, conventional neutrino telescopes, or radio-detection experiments, cover different parts of the parameter space. Since the model can also reproduce the flavor and neutrino-antineutrino composition, we study the impact on the track-to-shower ratio and the Glashow resonance.
KW  - neutrino: production (INSPIRE)
KW  - neutrino: detector (INSPIRE)
KW  - model: thermal (INSPIRE)
KW  - neutrino: spectrum (INSPIRE)
KW  - neutrino: flux (INSPIRE)
KW  - photon: cosmic radiation (INSPIRE)
KW  - photon hadron (INSPIRE)
KW  - magnetic field: effect (INSPIRE)
KW  - gamma ray: burst (INSPIRE)
KW  - neutrino antineutrino (INSPIRE)
KW  - temperature (INSPIRE)
KW  - sensitivity (INSPIRE)
KW  - black body (INSPIRE)
KW  - capture (INSPIRE)
KW  - flavor (INSPIRE)
KW  - muon (INSPIRE)
KW  - AGN (INSPIRE)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000683046300029
DO  - DOI:10.1088/1475-7516/2021/07/028
UR  - https://bib-pubdb1.desy.de/record/456598
ER  -