A method for correcting the substructure of multiprong jets using the Lund jet plane

(CMS Collaboration) Hayrapetyan, Aram ; ... ; Godinović, Nikola ; Lelas, Damir ; Šćulac, Ana ; Kovač, Marko ; Petković, Andro ; Šćulac, Toni ; Bargassa, Pedrame ; Brigljević, Vuko ; Chitroda, Bhakti Kanulal ; Ferenček, Dinko ; Jakovčić, Krešimir ; Starodumov, Andrey ; Šuša, Tatjana ; ... ; Mishra, Saswat ; ... ; Roguljić, Matej ; ... ; Sosnov, Dmitry (2025) A method for correcting the substructure of multiprong jets using the Lund jet plane. Journal of High Energy Physics, 11 . ISSN 1126-6708

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Abstract

Many analyses at the CERN LHC exploit the substructure of jets to identify heavy resonances produced with high momenta that decay into multiple quarks and/or gluons. This paper presents a new technique for correcting the substructure of simulated large-radius jets from multiprong decays. The technique is based on reclustering the jet constituents into several subjets such that each subjet represents a single prong, and separately correcting the radiation pattern in the Lund jet plane of each subjet using a correction derived from data. The data presented here correspond to an integrated luminosity of 138 fb−1 collected by the CMS experiment between 2016–2018 at a center-of-mass energy of 13 TeV. The correction procedure improves the agreement between data and simulation for several different substructure observables of multiprong jets. This technique establishes, for the first time, a robust calibration for the substructure of jets with four or more prongs, enabling future measurements and searches for new phenomena containing these signatures.

Item Type:	Article
Uncontrolled Keywords:	High energy physics ; Experimental particle physics ; LHC ; CMS ; Hadron-Hadron Scattering ; Jets
Subjects:	NATURAL SCIENCES > Physics NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Centre for detectors, sensors and electronics Division of Experimental Physics
Depositing User:	Martina Žugaj
Date Deposited:	22 Jan 2026 11:27
URI:	http://fulir.irb.hr/id/eprint/11050
DOI:	10.1007/JHEP11(2025)038

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