Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment

Abstract: This paper presents updated Monte Carlo configurations used to model the production of single electroweak vector bosons (W, Z/γ∗) in association with jets in proton-proton collisions for the ATLAS experiment at the Large Hadron Collider. Improvements pertaining to the electroweak input scheme, parton-shower splitting kernels and scale-setting scheme are shown for multi-jet merged configurations accurate to next-to-leading order in the strong and electroweak couplings. The computational resources required for these set-ups are assessed, and approximations are introduced resulting in a factor three reduction of the per-event CPU time without affecting the physics modelling performance. Continuous statistical enhancement techniques are introduced by ATLAS in order to populate low cross-section regions of phase space and are shown to match or exceed the generated effective luminosity. This, together with the lower per-event CPU time, results in a 50% reduction in the required computing resources compared to a legacy set-up previously used by the ATLAS collaboration. The set-ups described in this paper will be used for future ATLAS analyses and lay the foundation for the next generation of Monte Carlo predictions for single vector-boson plus jets production

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch
• Anmerkungen: Journal of high energy physics. - 2022, 8 (2022) , 89, ISSN: 1029-8479

Beteiligte, Orts- und Zeitangaben

• Ereignis: Veröffentlichung
• (wo): Freiburg
• (wer): Universität
• (wann): 2022
• Urheber: ATLAS Collaboration CERN ; Argyropoulos, Spyridon ; Becherer, Fabian ; Böhler, Michael ; Fernandez Pretel, Jose Antonio ; Gargiulo, Simona ; Heidegger, Constantin ; Heidegger, Kim K. ; Heinemann, Beate ; Herten, Gregor ; Hohn, David ; Hönig, Jan Cedric ; Jakobs, Karl ; Jenni, Peter ; Karentzos, Efstathios ; Knue, Andrea ; Köneke, Karsten ; Kuprash, Oleg ; Landgraf, Ulrich ; Lang, Valerie ; Lösle, Alena ; Magerl, Veronika ; Moskalets, Tetiana ; Parzefall, Ulrich ; Plesanovs, Vladislavs ; Rafanoharana, Dimbiniaina ; Rodriguez Rodriguez, Arturo ; Roland, Benoit ; Rottler, Benjamin ; Rühr, Frederik ; Rúriková, Zuzana ; Sammel, Dirk ; Sauerburger, Frank ; Schleicher, Katharina E. ; Scholer, Patrick ; Schumacher, Markus ; Solomon, Shalu ; Solovieva, Ksenia ; Sperlich, Dennis ; Weiser, Christian ; Wiik-Fuchs, Liv ; Winter, Benedict T. ; Young, Christopher ; Zanzi, Daniele ; Zimmermann, Stephanie ; et al
• Beteiligte Personen und Organisationen: Experimentelle Teilchenphysik, Abt. Prof. Heinemann ; Experimentelle Teilchenphysik, Abt. Prof. Dr. Gregor Herten ; Experimentelle Teilchenphysik, Abt. Prof. Karl Jakobs ; Experimentelle Teilchenphysik, Abt. Prof. Schumacher

Weitere Informationen

• DOI: 10.1007/jhep08(2022)089
• URN: urn:nbn:de:bsz:25-freidok-2321305
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 25.03.2025, 13:51 MEZ