Measurements of top-quark pair spin correlations in the eµ channel at √s = 13 TeV using pp collisions in 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_____%2F20%3A00537144" target="_blank" >RIV/68378271:_____/20:00537144 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0314895" target="_blank" >http://hdl.handle.net/11104/0314895</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-020-8181-6" target="_blank" >10.1140/epjc/s10052-020-8181-6</a>
Alternative languages
Result language
angličtina
Original language name
Measurements of top-quark pair spin correlations in the eµ channel at √s = 13 TeV using pp collisions in the ATLAS detector
Original language description
A measurement of observables sensitive to spin correlations in ttˉt ar{t}ttˉ production is presented, using 36.1 hbox {fb}^{-1} of pp collision data at s=13sqrt{s} = 13s =13 TeV recorded with the ATLAS detector at the Large Hadron Collider. Differential cross-sections are measured in events with exactly one electron and one muon with opposite-sign electric charge as a function of the azimuthal opening angle and the absolute difference in pseudorapidity between the electron and muon candidates in the laboratory frame. The azimuthal opening angle is also measured as a function of the invariant mass of the ttˉt ar{t}ttˉ system. The measured differential cross-sections are compared to predictions by several NLO Monte Carlo generators and fixed-order calculations. The observed degree of spin correlation is somewhat higher than predicted by the generators used. The data are consistent with the prediction of one of the fixed-order calculations at NLO, but agree less well with higher-order predictions.n
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
<a href="/en/project/LTT17018" target="_blank" >LTT17018: Getting new knowledge of the microworld using the CERN infrastructure</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
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
80
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
43
Pages from-to
1-43
UT code for WoS article
000565271700001
EID of the result in the Scopus database
2-s2.0-85090083990