Systematic uncertainties in air shower measurements from high-energy hadronic interaction models - INSPIRE

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Systematic uncertainties in air shower measurements from high-energy hadronic interaction models

R.D. Parsons
(
- Leeds U.
)
,
C. Bleve
(
- Wuppertal U.
)
,
S.S. Ostapchenko
(
- Norwegian U. Sci. Tech. and
- SINP, Moscow
)
,
J. Knapp
(
- Leeds U.
)

Feb, 2011

8 pages

Published in:

Astropart.Phys. 34 (2011) 832-839

e-Print:

1102.4603 [astro-ph.HE]

DOI:

10.1016/j.astropartphys.2011.02.007

View in:

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Abstract: (arXiv)

Hadronic interaction models at cosmic ray (CR) energies are inherently uncertain due to the lack of a fundamental theoretical description of soft hadronic and nuclear interactions and the large extrapolation required from collider energies to the range of the most energetic cosmic rays observed (

>10^{20}

eV). Model uncertainties are evaluated within the QGSJET-II model, by varying some of the crucial parameters in the limits allowed by collider data, and between QGSJET-II and other models commonly used in air shower simulations. The crucial parameters relate to hard processes, string fragmentation, diffraction and baryon production. Results on inelastic cross sections, on secondary particle production and on the properties of air showers measured by ground detectors from energies of

10^{12}

to

10^{19}

eV are presented.

Air showers
Simulations
Hadronic interaction models
showers: air
interaction: model
hadron hadron: interaction
string: fragmentation
production
cosmic radiation: VHE
cosmic radiation: UHE

References(25)

Figures(0)

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