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Abstract:

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 cross section is measured as a function of log10ρ 2 , 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 = 13 TeV protonproton collisions recorded by the ATLAS detector. The data are unfolded to correct for detector effects and compared to precise QCD calculations and leading-logarithm particle-level Monte Carlo simulations. © 2018 CERN, for the ATLAS Collaboration.

Registro:

Documento: Artículo
Título:Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector
Autor:Aaboud, M. et al.
Este artículo contiene 2886 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2886 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Drops; Hadrons; Intelligent systems; Microstrip devices; Monte Carlo methods; Particle accelerators; Detector effects; Differential cross section; Large Hadron Collider; Logarithm approximation; Proton proton collisions; The standard model; Theoretical calculations; Transverse momenta; Tellurium compounds
Año:2018
Volumen:121
Número:9
DOI: http://dx.doi.org/10.1103/PhysRevLett.121.092001
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v121_n9_p_Aaboud

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Citas:

---------- APA ----------
(2018) . Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector. Physical Review Letters, 121(9).
http://dx.doi.org/10.1103/PhysRevLett.121.092001
---------- CHICAGO ----------
Aaboud, M. "Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector" . Physical Review Letters 121, no. 9 (2018).
http://dx.doi.org/10.1103/PhysRevLett.121.092001
---------- MLA ----------
Aaboud, M. "Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector" . Physical Review Letters, vol. 121, no. 9, 2018.
http://dx.doi.org/10.1103/PhysRevLett.121.092001
---------- VANCOUVER ----------
Aaboud, M. Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector. Phys Rev Lett. 2018;121(9).
http://dx.doi.org/10.1103/PhysRevLett.121.092001