Speaker
Dr
Ralf Ulrich
(PSU)
Description
Only by measurement of extensive air showers it is possible to
explore the nature of cosmic ray particles at the highest energies.
Most properties can only be obtained from the interpretation of air
shower data and are thus depending on predictions of hadronic
interaction models at ultra-high energies. We discuss different
scenarios of model extrapolations from accelerator data to
air shower energies and investigate their impact on the
corresponding air shower predictions. For this purpose we developed
an ad hoc model, which is based on
the modification of the output of standard hadronic interaction event generators within
the air shower simulation process. This model allows us to study the impact
of changing interaction features on the air shower development.
In a systematic study we demonstrate the resulting changes of important air shower
observables and discuss them also in terms of the predictions of the
Heitler model of air shower cascades.
| If this is a contributed presentation, please indicate preference for Oral (O) or Poster (P): | O |
|---|
Primary author
Dr
Ralf Ulrich
(PSU)
Co-authors
Dr
Michael Unger
(KIT, Karlsruhe, Germany)
Dr
Ralph Engel
(KIT, Karlsruhe, Germany)