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Measurements of multijet production cross sections in proton-proton collisions at 7 TeV center-of-mass energy with the ATLAS Detector
Inclusive multijet production has been studied with the ATLAS detector in proton-proton collisions at a center-of-mass energy of 7 TeV, using an integrated luminosity of 17 nb$^{-1}$. The anti-$k_t$ algorithm with distance parameter $R=0.6$ is used to identify jets. The inclusive multijet cross sect...
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Lenguaje: | eng |
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2010
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Acceso en línea: | http://cds.cern.ch/record/1298854 |
_version_ | 1780921003549917184 |
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author | The ATLAS collaboration |
author_facet | The ATLAS collaboration |
author_sort | The ATLAS collaboration |
collection | CERN |
description | Inclusive multijet production has been studied with the ATLAS detector in proton-proton collisions at a center-of-mass energy of 7 TeV, using an integrated luminosity of 17 nb$^{-1}$. The anti-$k_t$ algorithm with distance parameter $R=0.6$ is used to identify jets. The inclusive multijet cross section is measured, as well as the ratio of cross sections for inclusive production of $n-1$ and $n$ jets for $n\leq 6$. The differential cross sections of the first, second, third and fourth leading jets as a function of transverse momentum, and the differential cross section as a function of the scalar sum of the $p_T$ of selected jets, $H_T$, for different jet multiplicities are presented. The ratio of the differential cross section as a function of $H_T$ for 3-jet and 2-jet events is also measured. The results are compared to expectations based on leading order QCD, which agree with the data. |
id | cern-1298854 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2010 |
record_format | invenio |
spelling | cern-12988542021-04-18T19:36:56Zhttp://cds.cern.ch/record/1298854engThe ATLAS collaborationMeasurements of multijet production cross sections in proton-proton collisions at 7 TeV center-of-mass energy with the ATLAS DetectorDetectors and Experimental TechniquesInclusive multijet production has been studied with the ATLAS detector in proton-proton collisions at a center-of-mass energy of 7 TeV, using an integrated luminosity of 17 nb$^{-1}$. The anti-$k_t$ algorithm with distance parameter $R=0.6$ is used to identify jets. The inclusive multijet cross section is measured, as well as the ratio of cross sections for inclusive production of $n-1$ and $n$ jets for $n\leq 6$. The differential cross sections of the first, second, third and fourth leading jets as a function of transverse momentum, and the differential cross section as a function of the scalar sum of the $p_T$ of selected jets, $H_T$, for different jet multiplicities are presented. The ratio of the differential cross section as a function of $H_T$ for 3-jet and 2-jet events is also measured. The results are compared to expectations based on leading order QCD, which agree with the data.ATLAS-CONF-2010-084oai:cds.cern.ch:12988542010-10-11 |
spellingShingle | Detectors and Experimental Techniques The ATLAS collaboration Measurements of multijet production cross sections in proton-proton collisions at 7 TeV center-of-mass energy with the ATLAS Detector |
title | Measurements of multijet production cross sections in proton-proton collisions at 7 TeV center-of-mass energy with the ATLAS Detector |
title_full | Measurements of multijet production cross sections in proton-proton collisions at 7 TeV center-of-mass energy with the ATLAS Detector |
title_fullStr | Measurements of multijet production cross sections in proton-proton collisions at 7 TeV center-of-mass energy with the ATLAS Detector |
title_full_unstemmed | Measurements of multijet production cross sections in proton-proton collisions at 7 TeV center-of-mass energy with the ATLAS Detector |
title_short | Measurements of multijet production cross sections in proton-proton collisions at 7 TeV center-of-mass energy with the ATLAS Detector |
title_sort | measurements of multijet production cross sections in proton-proton collisions at 7 tev center-of-mass energy with the atlas detector |
topic | Detectors and Experimental Techniques |
url | http://cds.cern.ch/record/1298854 |
work_keys_str_mv | AT theatlascollaboration measurementsofmultijetproductioncrosssectionsinprotonprotoncollisionsat7tevcenterofmassenergywiththeatlasdetector |