Measurement of hard double-parton interactions with the ATLAS detector

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The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of sqrt(s)=7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36/pb, collected with the ATLAS detector at the LHC...

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Autor principal: Martin, T A D
Lenguaje:eng
Publicado: 2013
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1556771
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author Martin, T A D
author_facet Martin, T A D
author_sort Martin, T A D
collection CERN
description The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of sqrt(s)=7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36/pb, collected with the ATLAS detector at the LHC. The fraction of events arising from double-parton interactions, fDP(D) has been measured through the momentum balance between the two jets and amounts to fDP(D) = 0.08 +- 0.01 (stat.) +- 0.02 (sys) for jets with transverse momentum PT > 20 GeV and rapidity |y|<2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of sigma_eff = 15 +- 3 (stat.) +5 -3 (sys.) mb.
id cern-1556771
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
record_format invenio
spelling cern-15567712019-09-30T06:29:59Zhttp://cds.cern.ch/record/1556771engMartin, T A DMeasurement of hard double-parton interactions with the ATLAS detectorDetectors and Experimental TechniquesThe production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of sqrt(s)=7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36/pb, collected with the ATLAS detector at the LHC. The fraction of events arising from double-parton interactions, fDP(D) has been measured through the momentum balance between the two jets and amounts to fDP(D) = 0.08 +- 0.01 (stat.) +- 0.02 (sys) for jets with transverse momentum PT > 20 GeV and rapidity |y|<2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of sigma_eff = 15 +- 3 (stat.) +5 -3 (sys.) mb.ATL-PHYS-SLIDE-2013-377oai:cds.cern.ch:15567712013-06-20
spellingShingle Detectors and Experimental Techniques
Martin, T A D
Measurement of hard double-parton interactions with the ATLAS detector
title Measurement of hard double-parton interactions with the ATLAS detector
title_full Measurement of hard double-parton interactions with the ATLAS detector
title_fullStr Measurement of hard double-parton interactions with the ATLAS detector
title_full_unstemmed Measurement of hard double-parton interactions with the ATLAS detector
title_short Measurement of hard double-parton interactions with the ATLAS detector
title_sort measurement of hard double-parton interactions with the atlas detector
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1556771
work_keys_str_mv AT martintad measurementofharddoublepartoninteractionswiththeatlasdetector

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