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Title: Diffuse flux of galactic neutrinos and gamma rays

Abstract

We calculate the fluxes of neutrinos and gamma rays from interactions of cosmic rays with interstellar matter in our galaxy. We use EPOS-LHC, SIBYLL and GHEISHA to parametrize the yield of these particles in proton, helium and iron collisions at kinetic energies between 1 and 10{sup 8} GeV, and we correlate the cosmic ray density with the mean magnetic field strength in the disk and the halo of our galaxy. We find that at E > 1 PeV the fluxes depend very strongly on the cosmic-ray composition, whereas at 1–5 GeV the main source of uncertainty is the cosmic-ray spectrum out of the heliosphere. We show that the diffuse flux of galactic neutrinos becomes larger than the conventional atmospheric one at E >1 PeV, but that at all IceCube energies it is 4 times smaller than the atmospheric flux from forward-charm decays.

Authors:
;  [1]
  1. CAFPE and Departamento de Física Teórica y del Cosmos, Universidad de Granada, E-18071 Granada (Spain)
Publication Date:
OSTI Identifier:
22679994
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 03; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CERN LHC; COLLISIONS; COSMIC GAMMA SOURCES; COSMIC NEUTRINOS; COSMIC RADIATION; DECAY; DENSITY; GALAXIES; GAMMA RADIATION; GEV RANGE; HELIOSPHERE; HELIUM; ICECUBE NEUTRINO DETECTOR; INTERACTIONS; IRON; MAGNETIC FIELDS; PEV RANGE; PROTONS; SPECTRA

Citation Formats

Carceller, J.M., and Masip, M., E-mail: jmcarcell@correo.ugr.es, E-mail: masip@ugr.es. Diffuse flux of galactic neutrinos and gamma rays. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/03/013.
Carceller, J.M., & Masip, M., E-mail: jmcarcell@correo.ugr.es, E-mail: masip@ugr.es. Diffuse flux of galactic neutrinos and gamma rays. United States. doi:10.1088/1475-7516/2017/03/013.
Carceller, J.M., and Masip, M., E-mail: jmcarcell@correo.ugr.es, E-mail: masip@ugr.es. Wed . "Diffuse flux of galactic neutrinos and gamma rays". United States. doi:10.1088/1475-7516/2017/03/013.
@article{osti_22679994,
title = {Diffuse flux of galactic neutrinos and gamma rays},
author = {Carceller, J.M. and Masip, M., E-mail: jmcarcell@correo.ugr.es, E-mail: masip@ugr.es},
abstractNote = {We calculate the fluxes of neutrinos and gamma rays from interactions of cosmic rays with interstellar matter in our galaxy. We use EPOS-LHC, SIBYLL and GHEISHA to parametrize the yield of these particles in proton, helium and iron collisions at kinetic energies between 1 and 10{sup 8} GeV, and we correlate the cosmic ray density with the mean magnetic field strength in the disk and the halo of our galaxy. We find that at E > 1 PeV the fluxes depend very strongly on the cosmic-ray composition, whereas at 1–5 GeV the main source of uncertainty is the cosmic-ray spectrum out of the heliosphere. We show that the diffuse flux of galactic neutrinos becomes larger than the conventional atmospheric one at E >1 PeV, but that at all IceCube energies it is 4 times smaller than the atmospheric flux from forward-charm decays.},
doi = {10.1088/1475-7516/2017/03/013},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 03,
volume = 2017,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}