Editing Geant4 (section)

{{Short description|Scientific software for particle physics}}
{{Infobox software
| name                   = Geant4
| developer              = [https://cern.ch/geant4/collaboration Geant4 Collaboration]
| released               = {{Start date and age|1998}}<ref name="geant4"/>
| latest_release_version = 11.3.0
| latest_release_date    = {{Start date and age|2024|12|06}}
| operating_system       = [[Cross-platform]]
| genre                  = [[Computational physics]]
| license                = [https://geant4.org/download/license Geant4 Software License]
| website                = {{URL|http://geant4.org/}}
}}
[[Image:DAGATA-Detektor Monte Carlo Simulation with Geant4.png|thumb|Visualisation of a simulation. The detector is red and radiation is green.]]

'''Geant4'''<ref name="geant4">{{Cite journal|doi=10.1016/S0168-9002(03)01368-8|title=Geant4—a simulation toolkit|year=2003|last1=Agostinelli|first1=S.|last2=Allison|first2=J.|last3=Amako|first3=K.|last4=Apostolakis|first4=J.|last5=Araujo|first5=H.|last6=Arce|first6=P.|last7=Asai|first7=M.|last8=Axen|first8=D.|last9=Banerjee|first9=S.|last10=Barrand|first10=G.|last11=Behner|first11=F.|last12=Bellagamba|first12=L.|last13=Boudreau|first13=J.|last14=Broglia|first14=L.|last15=Brunengo|first15=A.|last16=Burkhardt|first16=H.|last17=Chauvie|first17=S.|last18=Chuma|first18=J.|last19=Chytracek|first19=R.|last20=Cooperman|first20=G.|last21=Cosmo|first21=G.|last22=Degtyarenko|first22=P.|last23=Dell'Acqua|first23=A.|last24=Depaola|first24=G.|last25=Dietrich|first25=D.|last26=Enami|first26=R.|last27=Feliciello|first27=A.|last28=Ferguson|first28=C.|last29=Fesefeldt|first29=H.|last30=Folger|first30=G.|journal=Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment|volume=506|issue=3|pages=250|display-authors=15|bibcode = 2003NIMPA.506..250A |url=http://infoscience.epfl.ch/record/49909}}</ref><ref name="AllisonAmako2016">{{cite journal|last1=Allison|first1=J.|last2=Amako|first2=K.|last3=Apostolakis|first3=J.|last4=Arce|first4=P.|last5=Asai|first5=M.|last6=Aso|first6=T.|last7=Bagli|first7=E.|last8=Bagulya|first8=A.|last9=Banerjee|first9=S.|last10=Barrand|first10=G.|last11=Beck|first11=B.R.|last12=Bogdanov|first12=A.G.|last13=Brandt|first13=D.|last14=Brown|first14=J.M.C.|last15=Burkhardt|first15=H.|last16=Canal|first16=Ph.|last17=Cano-Ott|first17=D.|last18=Chauvie|first18=S.|last19=Cho|first19=K.|last20=Cirrone|first20=G.A.P.|last21=Cooperman|first21=G.|last22=Cortés-Giraldo|first22=M.A.|last23=Cosmo|first23=G.|last24=Cuttone|first24=G.|last25=Depaola|first25=G.|last26=Desorgher|first26=L.|last27=Dong|first27=X.|last28=Dotti|first28=A.|last29=Elvira|first29=V.D.|last30=Folger|first30=G.|last31=Francis|first31=Z.|last32=Galoyan|first32=A.|last33=Garnier|first33=L.|last34=Gayer|first34=M.|last35=Genser|first35=K.L.|last36=Grichine|first36=V.M.|last37=Guatelli|first37=S.|last38=Guèye|first38=P.|last39=Gumplinger|first39=P.|last40=Howard|first40=A.S.|last41=Hřivnáčová|first41=I.|last42=Hwang|first42=S.|last43=Incerti|first43=S.|last44=Ivanchenko|first44=A.|last45=Ivanchenko|first45=V.N.|last46=Jones|first46=F.W.|last47=Jun|first47=S.Y.|last48=Kaitaniemi|first48=P.|last49=Karakatsanis|first49=N.|last50=Karamitros|first50=M.|last51=Kelsey|first51=M.|last52=Kimura|first52=A.|last53=Koi|first53=T.|last54=Kurashige|first54=H.|last55=Lechner|first55=A.|last56=Lee|first56=S.B.|last57=Longo|first57=F.|last58=Maire|first58=M.|last59=Mancusi|first59=D.|last60=Mantero|first60=A.|last61=Mendoza|first61=E.|last62=Morgan|first62=B.|last63=Murakami|first63=K.|last64=Nikitina|first64=T.|last65=Pandola|first65=L.|last66=Paprocki|first66=P.|last67=Perl|first67=J.|last68=Petrović|first68=I.|last69=Pia|first69=M.G.|last70=Pokorski|first70=W.|last71=Quesada|first71=J.M.|last72=Raine|first72=M.|last73=Reis|first73=M.A.|last74=Ribon|first74=A.|last75=Ristić Fira|first75=A.|last76=Romano|first76=F.|last77=Russo|first77=G.|last78=Santin|first78=G.|last79=Sasaki|first79=T.|last80=Sawkey|first80=D.|last81=Shin|first81=J.I.|last82=Strakovsky|first82=I.I.|last83=Taborda|first83=A.|last84=Tanaka|first84=S.|last85=Tomé|first85=B.|last86=Toshito|first86=T.|last87=Tran|first87=H.N.|last88=Truscott|first88=P.R.|last89=Urban|first89=L.|last90=Uzhinsky|first90=V.|last91=Verbeke|first91=J.M.|last92=Verderi|first92=M.|last93=Wendt|first93=B.L.|last94=Wenzel|first94=H.|last95=Wright|first95=D.H.|last96=Wright|first96=D.M.|last97=Yamashita|first97=T.|last98=Yarba|first98=J.|last99=Yoshida|first99=H.|title=Recent developments in G eant 4|journal=Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment|volume=835|year=2016|pages=186–225|issn=0168-9002|doi=10.1016/j.nima.2016.06.125|bibcode=2016NIMPA.835..186A|doi-access=free}}</ref><ref name="geant4-2">{{Cite journal|doi=10.1109/TNS.2006.869826|title=Geant4 developments and applications|year=2006|last1=Allison|first1=J.|last2=Amako|first2=K.|last3=Apostolakis|first3=J.|last4=Araujo|first4=H.|last5=Arce Dubois|first5=P.|last6=Asai|first6=M.|last7=Barrand|first7=G.|last8=Capra|first8=R.|last9=Chauvie|first9=S.|last10=Chytracek|first10=R.|last11=Cirrone|first11=G.A.P.|last12=Cooperman|first12=G.|last13=Cosmo|first13=G.|last14=Cuttone|first14=G.|last15=Daquino|first15=G.G.|last16=Donszelmann|first16=M.|last17=Dressel|first17=M.|last18=Folger|first18=G.|last19=Foppiano|first19=F.|last20=Generowicz|first20=J.|last21=Grichine|first21=V.|last22=Guatelli|first22=S.|last23=Gumplinger|first23=P.|last24=Heikkinen|first24=A.|last25=Hrivnacova|first25=I.|last26=Howard|first26=A.|last27=Incerti|first27=S.|last28=Ivanchenko|first28=V.|last29=Johnson|first29=T.|last30=Jones|first30=F.|journal=IEEE Transactions on Nuclear Science|volume=53|issue=1|pages=270–278|bibcode = 2006ITNS...53..270A |display-authors=15|hdl=2047/d20000660|url=https://cds.cern.ch/record/1035669/files/cer-002694037.pdf|hdl-access=free}}</ref><ref name="geant4-3">{{Cite journal|doi=10.1016/j.nima.2016.06.125|title=Recent developments in Geant4|year=2016|last1=Allison|first1=J.|last2=Amako|first2=K.|last3=Apostolakis|first3=J.|last4=Arce|first4=P.|last5=Asai|first5=M.|last6=Aso|first6=T.|last7=Bagli|first7=E.|last8=Bagulya|first8=A.|last9=Banerjee|first9=S.|last10=Barrand|first10=G.|last11=Beck|first11=B.R.|last12=Bogdanov|first12=A.G.|last13=Brandt|first13=D.|last14=Brown|first14=J.M.C.|last15=Burkhardt|first15=H.|last16=Canal|first16=Ph.|last17=Cano-Ott|first17=D.|last18=Chauvie|first18=S.|last19=Cho|first19=K.|last20=Cirrone|first20=G.A.P.|last21=Cooperman|first21=G.|last22=Cortés-Giraldo|first22=M.A.|last23=Cosmo|first23=G.|last24=Cuttone|first24=G.|last25=Depaola|first25=G.|last26=Desorgher|first26=L.|last27=Dong|first27=X.|last28=Dotti|first28=A.|last29=Elvira|first29=V.D.|last30=Folger|first30=G.|journal=Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment|volume=835|pages=186–225|display-authors=15|bibcode = 2016NIMPA.835..186A |doi-access=free}}</ref> (for '''GEometry ANd Tracking''') is a [[Platform (computing)|platform]] for "the [[simulation]] of the passage of [[Elementary particle|particle]]s through [[matter]]" using [[Monte Carlo methods]].  It is the successor of the [[GEANT (program)|GEANT]] series of software toolkits developed by The Geant4 Collaboration, and the first to use [[object oriented programming]] (in [[C++]]). Its development, maintenance and user support are taken care by the international Geant4 Collaboration. Application areas include [[high energy physics]] and [[nuclear reaction|nuclear]] experiments, [[Particle accelerator|accelerator]] and [[space physics]] studies.<ref name="geant4-2"/> The software is used by a number of research projects around the world.

The Geant4 software and source code is freely available from the project web site; until version 8.1 (released June 28, 2006), no specific software license for its use existed; Geant4 is now provided under the Geant4 Software License.