| Issue |
EPJ Web Conf.
Volume 208, 2019
ISVHECRI 2018 - XX International Symposium on Very High Energy Cosmic Ray Interactions
|
|
|---|---|---|
| Article Number | 11001 | |
| Number of page(s) | 8 | |
| Section | Hadronic Interaction Models | |
| DOI | https://doi.org/10.1051/epjconf/201920811001 | |
| Published online | 10 May 2019 | |
https://doi.org/10.1051/epjconf/201920811001
QGSJET-III model: physics and preliminary results
1
Frankfurt Institute for Advanced Studies (FIAS), 60438 Frankfurt am Main, Germany
2
D.V. Skobeltsyn Institute of Nuclear Physics, Moscow State University, 119992 Moscow, Russia
* e-mail: ostapchenko@fias.uni-frankfurt.de
Published online: 10 May 2019
We discuss in some detail the physics content of the new model, QGSJET-III-01, focusing on major problems related to the treatment of semihard processes in the very high energy limit. A special attention has been payed to the main improvement, compared to the QGSJET-II model, which is related to a phenomenological treatment of leading power corrections corresponding to final parton rescattering off soft gluons. In particular, this allowed us to use a twice smaller separation scale between the soft and hard parton physics, compared to the previous model version, QGSJET-II-04. Preliminary results obtained with the new model are also presented.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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