Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s=8 TeV with the ATLAS detector
The inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2 fb −1 of data recorded in the ATLAS detector at the LHC at centre-of-mass energy s=8 TeV. In the four-lepton invariant-mass range of 80<m 4ℓ &am...
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2019
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v790_n_p595_Aaboud http://hdl.handle.net/20.500.12110/paper_03702693_v790_n_p595_Aaboud |
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paper:paper_03702693_v790_n_p595_Aaboud2023-06-08T15:37:44Z Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s=8 TeV with the ATLAS detector Double Drell–Yan Double parton-scattering Four-lepton production Higgs golden decay channel The inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2 fb −1 of data recorded in the ATLAS detector at the LHC at centre-of-mass energy s=8 TeV. In the four-lepton invariant-mass range of 80<m 4ℓ <1000 GeV, an artificial neural network is used to enhance the separation between single- and double-parton scattering based on the kinematics of the four leptons in the final state. An upper limit on the fraction of events originating from double-parton scattering is determined at 95% confidence level to be f DPS =0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb. © 2019 The Author(s) 2019 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v790_n_p595_Aaboud http://hdl.handle.net/20.500.12110/paper_03702693_v790_n_p595_Aaboud |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Double Drell–Yan Double parton-scattering Four-lepton production Higgs golden decay channel |
spellingShingle |
Double Drell–Yan Double parton-scattering Four-lepton production Higgs golden decay channel Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s=8 TeV with the ATLAS detector |
topic_facet |
Double Drell–Yan Double parton-scattering Four-lepton production Higgs golden decay channel |
description |
The inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2 fb −1 of data recorded in the ATLAS detector at the LHC at centre-of-mass energy s=8 TeV. In the four-lepton invariant-mass range of 80<m 4ℓ <1000 GeV, an artificial neural network is used to enhance the separation between single- and double-parton scattering based on the kinematics of the four leptons in the final state. An upper limit on the fraction of events originating from double-parton scattering is determined at 95% confidence level to be f DPS =0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb. © 2019 The Author(s) |
title |
Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s=8 TeV with the ATLAS detector |
title_short |
Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s=8 TeV with the ATLAS detector |
title_full |
Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s=8 TeV with the ATLAS detector |
title_fullStr |
Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s=8 TeV with the ATLAS detector |
title_full_unstemmed |
Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s=8 TeV with the ATLAS detector |
title_sort |
study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s=8 tev with the atlas detector |
publishDate |
2019 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v790_n_p595_Aaboud http://hdl.handle.net/20.500.12110/paper_03702693_v790_n_p595_Aaboud |
_version_ |
1768543137617149952 |