Direct Measurement of DPS at ATLAS

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 investigated using data corresponding to an integrated luminosity of 36 pb-1, collected with the ATLAS detector. The fraction of events arising from double-parto...

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Detalles Bibliográficos
Autor principal: Sadeh, I
Lenguaje:eng
Publicado: 2012
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1498427
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author Sadeh, I
author_facet Sadeh, I
author_sort Sadeh, I
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 investigated using data corresponding to an integrated luminosity of 36 pb-1, collected with the ATLAS detector. The fraction of events arising from double-parton scattering, fDP , has been measured through the pT balance between the two jets and amounts to fDP = 0.08+-0.01(stat)+-0.02(sys) for jets with transverse momentum pT > 20 GeV and rapidity |y| < 2.8. This translates into an effective cross section for hard double-parton interactions of sigma_eff = 15+-3(stat)+5-3(sys) mb.
id cern-1498427
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14984272019-09-30T06:29:59Zhttp://cds.cern.ch/record/1498427engSadeh, IDirect Measurement of DPS at ATLASDetectors 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 investigated using data corresponding to an integrated luminosity of 36 pb-1, collected with the ATLAS detector. The fraction of events arising from double-parton scattering, fDP , has been measured through the pT balance between the two jets and amounts to fDP = 0.08+-0.01(stat)+-0.02(sys) for jets with transverse momentum pT > 20 GeV and rapidity |y| < 2.8. This translates into an effective cross section for hard double-parton interactions of sigma_eff = 15+-3(stat)+5-3(sys) mb.ATL-PHYS-SLIDE-2012-783oai:cds.cern.ch:14984272012-12-10
spellingShingle Detectors and Experimental Techniques
Sadeh, I
Direct Measurement of DPS at ATLAS
title Direct Measurement of DPS at ATLAS
title_full Direct Measurement of DPS at ATLAS
title_fullStr Direct Measurement of DPS at ATLAS
title_full_unstemmed Direct Measurement of DPS at ATLAS
title_short Direct Measurement of DPS at ATLAS
title_sort direct measurement of dps at atlas
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1498427
work_keys_str_mv AT sadehi directmeasurementofdpsatatlas

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