Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/102716
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dc.contributor.author | Aad, G. | - |
dc.contributor.author | Abbott, B. | - |
dc.contributor.author | Abdallah, J. | - |
dc.contributor.author | Abdel Khalek, S. | - |
dc.contributor.author | Abdinov, O. | - |
dc.contributor.author | Aben, R. | - |
dc.contributor.author | Abi, B. | - |
dc.contributor.author | Abolins, M. | - |
dc.contributor.author | AbouZeid, O. | - |
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 | 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 | Agatonovic-Jovin, T. | - |
dc.contributor.author | et al. | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | European Physical Journal C: Particles and Fields, 2015; 75(5):1-29 | - |
dc.identifier.issn | 1434-6052 | - |
dc.identifier.issn | 1434-6052 | - |
dc.identifier.uri | http://hdl.handle.net/2440/102716 | - |
dc.description.abstract | The production of a Z boson in association with a J/ψ meson in proton–proton collisions probes the production mechanisms of quarkonium and heavy flavour in association with vector bosons, and allows studies of multiple parton scattering. Using 20.3fb−1 of data collected with the ATLAS experiment at the LHC in pp collisions at s√=8TeV, the first measurement of associated Z+J/ψ production is presented for both prompt and non-prompt J/ψ production, with both signatures having a significance in excess of 5σ. The inclusive production cross-sections for Z boson production (analysed in μ+μ− or e+e− decay modes) in association with prompt and non-prompt J/ψ(→μ+μ−) are measured relative to the inclusive production rate of Z bosons in the same fiducial volume to be (36.8±6.7±2.5)×10−7 and (65.8±9.2±4.2)×10−7 respectively. Normalised differential production cross-section ratios are also determined as a function of the Jψ transverse momentum. The fraction of signal events arising from single and double parton scattering is estimated, and a lower limit of 5.3 (3.7)mb at 68 (95)% confidence level is placed on the effective cross-section regulating double parton interactions. | - |
dc.description.statementofresponsibility | G. Aad … P. Jackson … L. Lee … A. Petridis … N. Soni ... M. White ... et al. (The ATLAS Collaboration) | - |
dc.language.iso | en | - |
dc.publisher | Springer | - |
dc.rights | © CERN for the benefit of the ATLAS collaboration 2015. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecomm ons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3. | - |
dc.source.uri | http://dx.doi.org/10.1140/epjc/s10052-015-3406-9 | - |
dc.subject | Atlas Collaboration | - |
dc.title | Observation and measurements of the production of prompt and non-prompt Jψ mesons in association with a ZZ boson in pp collisions at √s=8TeV with the ATLAS detector | - |
dc.title.alternative | Observation and measurements of the production of prompt and non-prompt Jpsi mesons in association with a ZZ boson in pp collisions at root s=8TeV with the ATLAS detector | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1140/epjc/s10052-015-3406-9 | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest 7 Physics publications |
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hdl_102716.pdf | Published version | 2.45 MB | Adobe PDF | View/Open |
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