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

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

In: Journal of High Energy Physics, Vol. 2022, No. 8, 089, 05.08.2022.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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ATLAS Collaboration. Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment. Journal of High Energy Physics. 2022 Aug 5;2022(8):089. doi: 10.1007/jhep08(2022)089

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ATLAS Collaboration. / Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment. In: Journal of High Energy Physics. 2022 ; Vol. 2022, No. 8.

Bibtex

@article{21707634c04f46519046cb5111da2e2c,
title = "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.",
keywords = "Regular Article - Experimental Physics, Hadron-Hadron Scattering",
author = "{ATLAS Collaboration} and A.E. Barton and I.A. Bertram and G. Borissov and E.V. Bouhova-Thacker and H. Fox and R.C.W. Henderson and R.W.L. Jones and V. Kartvelishvili and P.A. Love and L. Meng and D. Muenstermann and K. Rybacki and Izaac Sanderswood and M. Smizanska and S. Spinali and A.M. Wharton and Melissa Yexley",
year = "2022",
month = aug,
day = "5",
doi = "10.1007/jhep08(2022)089",
language = "English",
volume = "2022",
journal = "Journal of High Energy Physics",
issn = "1029-8479",
publisher = "Springer-Verlag",
number = "8",

}

RIS

TY - JOUR

T1 - Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment

AU - ATLAS Collaboration

AU - Barton, A.E.

AU - Bertram, I.A.

AU - Borissov, G.

AU - Bouhova-Thacker, E.V.

AU - Fox, H.

AU - Henderson, R.C.W.

AU - Jones, R.W.L.

AU - Kartvelishvili, V.

AU - Love, P.A.

AU - Meng, L.

AU - Muenstermann, D.

AU - Rybacki, K.

AU - Sanderswood, Izaac

AU - Smizanska, M.

AU - Spinali, S.

AU - Wharton, A.M.

AU - Yexley, Melissa

PY - 2022/8/5

Y1 - 2022/8/5

N2 - 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.

AB - 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.

KW - Regular Article - Experimental Physics

KW - Hadron-Hadron Scattering

U2 - 10.1007/jhep08(2022)089

DO - 10.1007/jhep08(2022)089

M3 - Journal article

VL - 2022

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 8

M1 - 089

ER -