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Title: Measurement of three-jet production cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector

Abstract

Double-differential three-jet production cross-sections are measured in proton–proton collisions at a centre-of-mass energy of √s=7TeV using the ATLAS detector at the large hadron collider. The measurements are presented as a function of the three-jet mass (m jjj), in bins of the sum of the absolute rapidity separations between the three leading jets (|Y *|). Invariant masses extending up to 5 TeV are reached for 8<|Y *|<10. These measurements use a sample of data recorded using the ATLAS detector in 2011, which corresponds to an integrated luminosity of 4.51 fb 11. Jets are identified using the anti-k t algorithm with two different jet radius parameters, R=0.4 and R=0.6. The dominant uncertainty in these measurements comes from the jet energy scale. Next-to-leading-order QCD calculations corrected to account for non-perturbative effects are compared to the measurements. Good agreement is found between the data and the theoretical predictions based on most of the available sets of parton distribution functions, over the full kinematic range, covering almost seven orders of magnitude in the measured cross-section values.

Authors:
 [1]
  1. Aix-Marseille Universite and CNRS/IN2P3 (France). et al.
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
Contributing Org.:
ATLAS Collaboration
OSTI Identifier:
1221214
Alternate Identifier(s):
OSTI ID: 1210180; OSTI ID: 1221633; OSTI ID: 1225263; OSTI ID: 1407358
Report Number(s):
BNL-108240-2015-JA
Journal ID: ISSN 1434-6044; KA1101021
Grant/Contract Number:  
SC0012704; AC03-76SF00515; AC02-06CH11357; AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 75; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Aad, G. Measurement of three-jet production cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector. United States: N. p., 2015. Web. doi:10.1140/epjc/s10052-015-3363-3.
Aad, G. Measurement of three-jet production cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector. United States. doi:10.1140/epjc/s10052-015-3363-3.
Aad, G. Wed . "Measurement of three-jet production cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector". United States. doi:10.1140/epjc/s10052-015-3363-3. https://www.osti.gov/servlets/purl/1221214.
@article{osti_1221214,
title = {Measurement of three-jet production cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector},
author = {Aad, G.},
abstractNote = {Double-differential three-jet production cross-sections are measured in proton–proton collisions at a centre-of-mass energy of √s=7TeV using the ATLAS detector at the large hadron collider. The measurements are presented as a function of the three-jet mass (mjjj), in bins of the sum of the absolute rapidity separations between the three leading jets (|Y*|). Invariant masses extending up to 5 TeV are reached for 8<|Y*|<10. These measurements use a sample of data recorded using the ATLAS detector in 2011, which corresponds to an integrated luminosity of 4.51 fb11. Jets are identified using the anti-kt algorithm with two different jet radius parameters, R=0.4 and R=0.6. The dominant uncertainty in these measurements comes from the jet energy scale. Next-to-leading-order QCD calculations corrected to account for non-perturbative effects are compared to the measurements. Good agreement is found between the data and the theoretical predictions based on most of the available sets of parton distribution functions, over the full kinematic range, covering almost seven orders of magnitude in the measured cross-section values.},
doi = {10.1140/epjc/s10052-015-3363-3},
journal = {European Physical Journal. C, Particles and Fields},
issn = {1434-6044},
number = ,
volume = 75,
place = {United States},
year = {2015},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 5 works
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Figures / Tables:

Fig. 1 Fig. 1: Total systematic uncertainty in the three-jet cross-section for anti-kt R = 0.6 jets as a function of m j j j (a) in |Y| < 2 and (b) 8 < |Y| < 10 bins. The bands shows the uncertainties due to jet energy scale, jet angular resolution, jetmore » energy resolution and the combined uncertainty due to jet quality selection and unfolding. The outer band represents the total experimental uncertainty« less

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    Works referencing / citing this record:

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