Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/115225
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dc.contributor.author | Aaboud, M. | - |
dc.contributor.author | Aad, G. | - |
dc.contributor.author | Abbott, B. | - |
dc.contributor.author | Abdallah, J. | - |
dc.contributor.author | Abdinov, O. | - |
dc.contributor.author | Abeloos, B. | - |
dc.contributor.author | Aben, R. | - |
dc.contributor.author | AbouZeid, O. | - |
dc.contributor.author | Abraham, N. | - |
dc.contributor.author | Abramowicz, H. | - |
dc.contributor.author | Abreu, H. | - |
dc.contributor.author | Abreu, R. | - |
dc.contributor.author | Abulaiti, Y. | - |
dc.contributor.author | Acharya, B. | - |
dc.contributor.author | Adachi, S. | - |
dc.contributor.author | Adamczyk, L. | - |
dc.contributor.author | Adams, D. | - |
dc.contributor.author | Adelman, J. | - |
dc.contributor.author | Adomeit, S. | - |
dc.contributor.author | Adye, T. | - |
dc.contributor.author | et al. | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | The Journal of High Energy Physics, 2016; 2016(11):110-0-110-51 | - |
dc.identifier.issn | 1126-6708 | - |
dc.identifier.issn | 1029-8479 | - |
dc.identifier.uri | http://hdl.handle.net/2440/115225 | - |
dc.description | Published: November 21, 2016 | - |
dc.description.abstract | Inclusive four-jet events produced in proton-proton collisions at a centre-of-mass energy of s√=7 TeV are analysed for the presence of hard double-parton scattering using data corresponding to an integrated luminosity of 37.3 pb⁻¹, collected with the ATLAS detector at the LHC. The contribution of hard double-parton scattering to the production of four-jet events is extracted using an artificial neural network, assuming that hard double-parton scattering can be approximated by an uncorrelated overlaying of dijet events. For events containing at least four jets with transverse momentum p T ≥ 20 GeV and pseudorapidity |η| ≤ 4.4, and at least one having p T ≥ 42.5 GeV, the contribution of hard double-parton scattering is estimated to be f DPS = 0.092 − 0.011 + 0.005 (stat.) − 0.037 + 0.033 (syst.). After combining this measurement with those of the inclusive dijet and four-jet cross-sections in the appropriate phase space regions, the effective cross-section, σ eff , was determined to be σ eff = 14. 9 − 1.0 + 1.2 (stat.) − 3.8 + 5.1 (syst.) mb. This result is consistent within the quoted uncertainties with previous measurements of σ eff , performed at centre-of-mass energies between 63 GeV and 8 TeV using various final states, and it corresponds to 21 − 6 + 7 % of the total inelastic cross-section measured at s√=7 TeV. The distributions of the observables sensitive to the contribution of hard double-parton scattering, corrected for detector effects, are also provided. | - |
dc.description.statementofresponsibility | The ATLAS collaboration, M. Aaboud ... P. Jackson ... L. Lee ... A. Petridis ... M.J. White ... et al. | - |
dc.language.iso | en | - |
dc.publisher | Springer-Verlag | - |
dc.rights | Copyright: © The Author(s) 2016. Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. | - |
dc.source.uri | http://dx.doi.org/10.1007/jhep11(2016)110 | - |
dc.subject | Hadron-Hadron scattering (experiments) | - |
dc.title | Study of hard double-parton scattering in four-jet events in pp collisions at √s=7 TeV with the ATLAS experiment | - |
dc.title.alternative | Study of hard double-parton scattering in four-jet events in pp collisions at root s=7 TeV with the ATLAS experiment | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1007/JHEP11(2016)110 | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest 8 Physics publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_115225.pdf | Published version | 1.34 MB | Adobe PDF | View/Open |
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