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Abstract:

Measurements of transverse energy–energy correlations and their associated asymmetries in multi-jet events using the ATLAS detector at the LHC are presented. The data used correspond to s=8TeV proton–proton collisions with an integrated luminosity of 20.2fb-1. The results are presented in bins of the scalar sum of the transverse momenta of the two leading jets, unfolded to the particle level and compared to the predictions from Monte Carlo simulations. A comparison with next-to-leading-order perturbative QCD is also performed, showing excellent agreement within the uncertainties. From this comparison, the value of the strong coupling constant is extracted for different energy regimes, thus testing the running of α s (μ) predicted in QCD up to scales over 1TeV. A global fit to the transverse energy–energy correlation distributions yields αs(mZ)=0.1162±0.0011(exp.)-0.0070+0.0084(theo.), while a global fit to the asymmetry distributions yields a value of αs(mZ)=0.1196±0.0013(exp.)-0.0045+0.0075(theo.). © 2017, CERN for the benefit of the ATLAS collaboration.

Registro:

Documento: Artículo
Título:Determination of the strong coupling constant α s from transverse energy–energy correlations in multijet events at √s=8TeV using the ATLAS detector
Autor:ATLAS Collaboration et al.
Este artículo contiene 2875 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2875 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2017
Volumen:77
Número:12
DOI: http://dx.doi.org/10.1140/epjc/s10052-017-5442-0
Título revista:European Physical Journal C
Título revista abreviado:Eur. Phys. J. C
ISSN:14346044
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v77_n12_p_ATLASCollaboration

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Citas:

---------- APA ----------
(2017) . Determination of the strong coupling constant α s from transverse energy–energy correlations in multijet events at √s=8TeV using the ATLAS detector. European Physical Journal C, 77(12).
http://dx.doi.org/10.1140/epjc/s10052-017-5442-0
---------- CHICAGO ----------
ATLAS Collaboration. "Determination of the strong coupling constant α s from transverse energy–energy correlations in multijet events at √s=8TeV using the ATLAS detector" . European Physical Journal C 77, no. 12 (2017).
http://dx.doi.org/10.1140/epjc/s10052-017-5442-0
---------- MLA ----------
ATLAS Collaboration. "Determination of the strong coupling constant α s from transverse energy–energy correlations in multijet events at √s=8TeV using the ATLAS detector" . European Physical Journal C, vol. 77, no. 12, 2017.
http://dx.doi.org/10.1140/epjc/s10052-017-5442-0
---------- VANCOUVER ----------
ATLAS Collaboration. Determination of the strong coupling constant α s from transverse energy–energy correlations in multijet events at √s=8TeV using the ATLAS detector. Eur. Phys. J. C. 2017;77(12).
http://dx.doi.org/10.1140/epjc/s10052-017-5442-0