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2021 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 1, article id 188Article in journal (Refereed) Published
Abstract [en]
A measurement of event-shape variables in proton-proton collisions at large momentum transfer is presented using data collected at root s = 13 TeV with the ATLAS detector at the Large Hadron Collider. Six event-shape variables calculated using hadronic jets are studied in inclusive multijet events using data corresponding to an integrated luminosity of 139 fb(-1). Measurements are performed in bins of jet multiplicity and in different ranges of the scalar sum of the transverse momenta of the two leading jets, reaching scales beyond 2 TeV. These measurements are compared with predictions from Monte Carlo event generators containing leading-order or next-to-leading order matrix elements matched to parton showers simulated to leading-logarithm accuracy. At low jet multiplicities, shape discrepancies between the measurements and the Monte Carlo predictions are observed. At high jet multiplicities, the shapes are better described but discrepancies in the normalisation are observed.
Place, publisher, year, edition, pages
Springer NatureSPRINGER, 2021
Keywords
Hadron-Hadron scattering (experiments)
National Category
Subatomic Physics
Identifiers
urn:nbn:se:uu:diva-440053 (URN)10.1007/JHEP01(2021)188 (DOI)000613473000001 ()
Funder
CERNSwedish Research CouncilEU, European Research CouncilEU, Horizon 2020
Note
Correction in: Journal of High Energy Physics, Issue 12, Article number 53, DOI 10.1007/JHEP12(2021)053For complete list of authors see http://dx.doi.org/10.1007/JHEP01(2021)188
2021-04-142021-04-142024-01-15Bibliographically approved