Rimoldi, Marco; Mullier, Geoffrey; Miucci, Antonio; Merlassino, Claudia; Haug, Sigve; Weber, Michael; Meloni, Federico; Beck, Hans Peter; Ereditato, Antonio (2018). Measurement of the Soft-Drop Jet Mass in pp Collisions at √s = 13 TeV with the ATLAS Detector. Physical review letters, 121(9) American Physical Society 10.1103/PhysRevLett.121.092001
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Jet substructure observables have significantly extended the search program for physics beyond the standard model at the Large Hadron Collider. The state-of-the-art tools have been motivated by theoretical calculations, but there has never been a direct comparison between data and calculations of jet substructure observables that are accurate beyond leading-logarithm approximation. Such observables are significant not only for probing the collinear regime of QCD that is largely unexplored at a hadron collider, but also for improving the understanding of jet substructure properties that are used in many studies at the Large Hadron Collider. This Letter documents a measurement of the first jet substructure quantity at a hadron collider to be calculated at next-to-next-to-leading-logarithm accuracy. The normalized, differential crosssection is measured as a function of log₁₀ρ², where ρ is the ratio of the soft-drop mass to the ungroomed jet transverse momentum. This quantity is measured in dijet events from 32.9 fb⁻¹ of √s = 13TeV proton-proton collisions recorded by the ATLAS detector. The data are unfolded to correct for detector effects andcompared to precise QCD calculations and leading-logarithm particle-level Monte Carlo simulations
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Haug, Sigve, Weber, Michele, Beck, Hans Peter |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0031-9007 |
Publisher: |
American Physical Society |
Language: |
English |
Submitter: |
BORIS Import LHEP |
Date Deposited: |
27 Jun 2019 08:41 |
Last Modified: |
05 Dec 2022 15:27 |
Publisher DOI: |
10.1103/PhysRevLett.121.092001 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autoren namentlich erwaehnt |
BORIS DOI: |
10.7892/boris.129093 |
URI: |
https://boris.unibe.ch/id/eprint/129093 |
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