Conveners
Sensitivity of Monte Carlo models to data
- Paolo Lipari (INFN Roma 1)
Sensitivity of Monte Carlo models to data: 2
- Paolo Lipari (INFN Roma 1)
Dr
Ralph Engel
(Karlsruhe Institute of Technology (KIT))
29/06/2010, 14:25
Monte Carlo models
Invited
After introducing the general structure of event generators used for simulating cosmic ray interactions we describe the underlying philosophy of the Monte Carlo models EPOS, QGSJET, SIBYLL, and DPMJET. Some of the important assumptions of the models are reviewed in detail and the prediction obtained with the models are discussed. The reliability of the predictions is one of the key questions...
Dr
Tanguy Pierog
(KIT, IK)
30/06/2010, 08:30
Monte Carlo models
Contributed
Since 2006, EPOS hadronic interaction model is being used for very high energy cosmic ray analysis. Designed for minimum bias particle physics and used to have a precise description of SPS and RHIC heavy ion collisions, EPOS brought more detailed description of hadronic interactions in air shower development. Thanks to this model it was possible to understand why there was less muons in air...
Dr
Donghwa Kang
(Karlsruhe Institute of Technology)
30/06/2010, 08:45
Monte Carlo models
Contributed
KASCADE-Grande is a large detector array for the measurement of cosmic ray air showers in the primary energy range of 100 TeV to 1 EeV. Due to the multi-detector concept of the experimental set-up, various observables of the electromagnetic, the muonic and for lower primary energies also the hadronic particle component are measured for individual air showers. The experimental data are compared...
Dr
Ralf Ulrich
(PSU)
30/06/2010, 09:00
Monte Carlo models
Contributed
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...
Prof.
Jean-Noël CAPDEVIELLE
(APC, CNRS-University Paris Diderot)
30/06/2010, 09:15
Monte Carlo models
Contributed
Present results of the LHC (up to 26 PeV in the Lab. system) are a very small lever arm for the extrapolation of models up to 100 EeV. However, the measurements of CMS exhibit a central pseudo rapidity density larger than the prediction of the different models. Introducing on this basis new guidelines, with larger multiplicities in the models inserted in thesimulation, we examine the...
Dr
Eun-Joo Ahn
(Fermilab)
30/06/2010, 09:30
Monte Carlo models
Contributed
The cosmic ray interaction event generator Sibyll is widely used in extensive air shower simulations for cosmic ray and neutrino experiments. Charm particle production has been added to the Monte Carlo with a phenomenological, non-perturbative model that properly accounts for charm production in the forward direction. As prompt decays of charm can become a significant background for neutrino...
Dr
AKINORI OHSAWA
(Institute for Cosmic Ray Research, University of Tokyo.)
30/06/2010, 09:45
Monte Carlo models
Contributed
We describe the rapidity density distribution and the transverse momentum (p_{t}) distribution in multiple particle production, assuming a simple mechanism. It is an assumed mechanism that the newly produced particles are emitted isotropically from several emitting centers which are distributed on the rapidity axis in CMS. The energy distribution of the emitted particles is an exponential...