Emulating the impact of additional proton–proton interactions in the ATLAS simulation by presampling sets of inelastic Monte Carlo events

dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2022-10-07T08:35:03Z
dc.date.available2022-10-07T08:35:03Z
dc.date.issued2022-12
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractAbstract: he accurate simulation of additional interactions at the ATLAS experiment for the analysis of proton– proton collisions delivered by the Large Hadron Collider presents a significant challenge to the computing resources. During the LHC Run 2 (2015–2018), there were up to 70 inelastic interactions per bunch crossing, which need to be accounted for in Monte Carlo (MC) production. In this document, a new method to account for these additional interactions in the simulation chain is described. Instead of sampling the inelastic interactions and adding their energy deposits to a hard-scatter interaction one-by-one, the inelastic interactions are presampled, independent of the hard scatter, and stored as combined events. Consequently, for each hard-scatter interaction, only one such presampled event needs to be added as part of the simulation chain. For the Run 2 simulation chain, with an average of 35 interactions per bunch crossing, this new method provides a substantial reduction in MC production CPU needs of around 20%, while reproducing the properties of the reconstructed quantities relevant for physics analyses with good accuracyen_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1007/s41781-021-00062-2en_US
dc.identifier.issn2510-2044
dc.identifier.scopus2-s2.0-85124276335en_US
dc.identifier.urihttps://hdl.handle.net/11411/4555
dc.identifier.urihttps://doi.org/10.1007/s41781-021-00062-2
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakScopusen_US
dc.issue1en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors10+en_US
dc.pages12785en_US
dc.publisherSpringer Natureen_US
dc.relation.ispartofComputing and Software for Big Science,en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.titleEmulating the impact of additional proton–proton interactions in the ATLAS simulation by presampling sets of inelastic Monte Carlo eventsen_US
dc.typeArticleen_US
dc.volume6en_US

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