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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Autor principal: Aaboud, M.
Formato: JOUR
Materias:
Double Drell–Yan
Double parton-scattering
Four-lepton production
Higgs golden decay channel
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03702693_v790_n_p595_Aaboud
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_03702693_v790_n_p595_Aaboud2023-10-03T15:30:07Z Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s=8 TeV with the ATLAS detector Aaboud, M. 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) JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Aaboud, M.
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)
format JOUR
author Aaboud, M.
author_facet Aaboud, M.
author_sort Aaboud, M.
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
url http://hdl.handle.net/20.500.12110/paper_03702693_v790_n_p595_Aaboud
work_keys_str_mv AT aaboudm studyoftheharddoublepartonscatteringcontributiontoinclusivefourleptonproductioninppcollisionsats8tevwiththeatlasdetector
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