Measurement of the prompt J/ ψ pair production cross-section in pp collisions at √s = 8 TeV with the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00485241" target="_blank" >RIV/68378271:_____/17:00485241 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1140/epjc/s10052-017-4644-9" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-017-4644-9</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-017-4644-9" target="_blank" >10.1140/epjc/s10052-017-4644-9</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the prompt J/ ψ pair production cross-section in pp collisions at √s = 8 TeV with the ATLAS detector
Original language description
The production of two prompt J/ψ mesons, each with transverse momenta pT>8.5 GeV and rapidity |y|<2.1 , is studied using a sample of proton-proton collisions at s√=8 TeV, corresponding to an integrated luminosity of 11.4 fb−1 collected in 2012 with the ATLAS detector at the LHC. The differential cross-section, assuming unpolarised J/ψ production, is measured as a function of the transverse momentum of the lower- pT J/ψ meson, di- J/ψ pT and mass, the difference in rapidity between the two J/ψ mesons, and the azimuthal angle between the two J/ψ mesons. The fraction of prompt pair events due to double parton scattering is determined by studying kinematic correlations between the two J/ψ mesons. The total and double parton scattering cross-sections are compared with predictions. The effective cross-section of double parton scattering is measured to be σeff=6.3±1.6(stat)±1.0(syst) mb.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
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Volume of the periodical
77
Issue of the periodical within the volume
2
Country of publishing house
DE - GERMANY
Number of pages
34
Pages from-to
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UT code for WoS article
000400004500001
EID of the result in the Scopus database
2-s2.0-85011954449