# CORSIKA

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{{Short description|Physics computer software}}
{{other uses|Corsica}}
{{Infobox software
| name = CORSIKA,<br />an Extensive Air Shower Simulation Program
| logo = 
| screenshot = 
| caption = 
| author = [Dieter Heck](/source/Dieter_Heck), [Tanguy Pierog](/source/Tanguy_Pierog), [Institut für Astroteilchenphysik](/source/Institut_f%C3%BCr_Astroteilchenphysik), [Forschungszentrum Karlsruhe](/source/Forschungszentrum_Karlsruhe), [Germany](/source/Germany);<br />[Johannes Knapp](/source/Johannes_Knapp), [Deutsches Elektronen-Synchrotron](/source/Deutsches_Elektronen-Synchrotron), [Zeuthen](/source/Zeuthen), [Germany](/source/Germany)
| developer = CORSIKA collaboration
| released = 
| latest release version = 7.7410<ref>{{cite web|url=https://zenodo.org/record/5246070|doi=10.5281/zenodo.5246070|last1=Pierog |first1=Tanguy |last2=Heck |first2=Dieter |last3=Ulrich |first3=Ralf |publisher=Zenodo|title=CORSIKA}}</ref>
| latest release date = May 01, 2021
| latest preview version = 
| latest preview date = 
| operating system = 
| platform = 
| language = [FORTRAN 77](/source/FORTRAN_77)
| status = 
| genre = [Astroparticle physics](/source/Astroparticle_physics)
| license = CORSIKA is available to every scientist [free of charge](/source/free_of_charge) [http://www-ik.fzk.de/corsika/technicalities.html (more)]
| website = [https://www.iap.kit.edu/corsika/]
}}

'''CORSIKA''' ('''CO'''smic '''R'''ay '''SI'''mulations for ['''KA'''scade](/source/KASCADE)) is a [physics](/source/physics) [computer software](/source/computer_software) for simulation of extensive [air showers](/source/Air_shower_(physics)) induced by [high energy](/source/High_energy_physics) [cosmic ray](/source/cosmic_ray)s, i.e. protons and [atomic nuclei](/source/atomic_nucleus), as well as [Gamma rays](/source/Gamma_Ray) (photons), [electron](/source/electron)s, and [neutrino](/source/neutrino)s. It may be used up to and beyond the highest energies of 100 [E](/source/exa-)[eV](/source/Electronvolt).

In the current version the program utilizes the [hadronic](/source/hadronic) interaction models EPOS,<ref>{{cite journal
|last1=Pierog
|first1=Tanguy
|last2=Werner
|first2=Klaus
|title=EPOS Model and Ultra High Energy Cosmic Rays
|doi=10.1016/j.nuclphysbps.2009.09.017
|journal=Nucl. Phys. B Proc. Suppl. 
|pages=102–205
|volume=196
|year=2009
|arxiv=0905.1198
}}</ref> [QGSJET](/source/QGSJET), and [DPMJET](/source/DPMJET), which are based on [Gribov-Regge theory](/source/Gribov-Regge_theory), and [SIBYLL](/source/SIBYLL) based on a [minijet](/source/minijet) model for high
energies. Hadronic interactions at lower energies are described either by the [GHEISHA](/source/GHEISHA) module, by [FLUKA](/source/FLUKA), or by the [UrQMD](/source/UrQMD) model. Electromagnetic interactions are treated by an adapted version of the  [EGS4](/source/EGS_(program)) code,
customized by including the [Landau–Pomeranchuk–Migdal effect](/source/Landau%E2%80%93Pomeranchuk%E2%80%93Migdal_effect) relevant at higher energies.

It can be used to simulate the generation of [Cherenkov radiation](/source/Cherenkov_radiation), radio emission ([Askaryan radiation](/source/Askaryan_radiation)),<ref>{{cite journal
|doi=10.1063/1.4807534
|title=Simulating radio emission from air showers with CoREAS
|last1=Huege
|first1=T.
|last2=Ludwig
|first2=M.
|last3=James
|first3=C. W.
|journal=AIP Conf. Proc.
|number=1
|page=128
|year=2013
|volume=1535
|arxiv=1301.2132
}}
</ref> and atmospheric [neutrino](/source/neutrino)s.

A complete rewrite of CORSIKA in [C++](/source/C%2B%2B) named CORSIKA 8 is currently work in progress.<ref>{{cite journal
|last1=Engel
|first1=Ralph
|display-authors=etal
|title=Towards a next generation of CORSIKA: A framework for the simulation of particle cascades in astroparticle physics
|journal=Comput. Softw. Big Sci.
|doi=10.1007/s41781-018-0013-0
|volume=3
|pages=2
|year=2019
|arxiv=1808.08226
}}</ref>

== References ==
{{reflist}}

== External links ==
* [http://www.citebase.org/abstract?id=oai%3AarXiv.org%3Aastro-ph%2F0103073 Extensive Air Shower Simulations with CORSIKA and the Influence of High-Energy Hadronic Interaction Models] by Heck, D. at, [oai:arXiv.org:astro-ph/0103073](/source/arxiv%3Aastro-ph%2F0103073) at [arXiv](/source/arXiv)
* [https://web.archive.org/web/20070927184540/http://www.auger.de/interna/docs/repository/gap_2001_059.ps The Automated Air Shower Generation with CORSIKA at the Computing Center of IN2P3] <small>[PS](/source/PostScript)</small>
* [https://web.ikp.kit.edu/heck/publications/icrc_durban.pdf Recent Extensions to the Air Shower Simulation Program CORSIKA], proceedings of the 25th [ICRC](/source/International_Cosmic_Ray_Conference).

Category:Physics software

{{physics-software-stub}}

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Adapted from the Wikipedia article [CORSIKA](https://en.wikipedia.org/wiki/CORSIKA) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/CORSIKA?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.