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Improved photomeson model for interactions of cosmic ray nuclei

Result description

Photohadronic interactions are important for the sources and the transport of Ultra-High Energy Cosmic Rays (UHECRs). Current state-of-the-art cosmic ray transport simulations handle nuclear disintegration at energies of the Giant Dipole Resonance at a more sophisticated level, as well as the photohadronic interactions of nucleons in the high-energy regime above the pion production threshold. However, the interactions of nuclei above the pion production threshold are commonly modeled by treating the nucleus as a superposition of free nucleons - ignoring the effect of the nuclear medium. We construct an improved, inclusive model for the photomeson regime for nuclei with A <= 56 by employing more accurate, data-driven parametrizations of the interaction cross section, the fragmentation of the primary nucleus and the inclusive pion production cross section that directly affects the production of astrophysical neutrinos.

Keywords

neutrino astronomyultra high energy cosmic rays

The result's identifiers

Alternative languages

  • Result language

    angličtina

  • Original language name

    Improved photomeson model for interactions of cosmic ray nuclei

  • Original language description

    Photohadronic interactions are important for the sources and the transport of Ultra-High Energy Cosmic Rays (UHECRs). Current state-of-the-art cosmic ray transport simulations handle nuclear disintegration at energies of the Giant Dipole Resonance at a more sophisticated level, as well as the photohadronic interactions of nucleons in the high-energy regime above the pion production threshold. However, the interactions of nuclei above the pion production threshold are commonly modeled by treating the nucleus as a superposition of free nucleons - ignoring the effect of the nuclear medium. We construct an improved, inclusive model for the photomeson regime for nuclei with A <= 56 by employing more accurate, data-driven parametrizations of the interaction cross section, the fragmentation of the primary nucleus and the inclusive pion production cross section that directly affects the production of astrophysical neutrinos.

  • Czech name

  • Czech description

Classification

  • Type

    Jimp - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10303 - Particles and field physics

Result continuities

  • Project

  • Continuities

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Cosmology and Astroparticle Physics

  • ISSN

    1475-7516

  • e-ISSN

    1475-7516

  • Volume of the periodical

    2019

  • Issue of the periodical within the volume

    11

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    28

  • Pages from-to

    007

  • UT code for WoS article

    000507259700004

  • EID of the result in the Scopus database

    2-s2.0-85080948709

Basic information

Result type

Jimp - Article in a specialist periodical, which is included in the Web of Science database

Jimp

OECD FORD

Particles and field physics

Year of implementation

2019