Measurement of colour flow using jet-pull observables in in t(t)over-bar events with the ATLAS experiment at root s=13TeVVise andre og tillknytning
Rekke forfattare: 28422018 (engelsk)Inngår i: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 78, nr 10, artikkel-id 847
Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]
Previous studies have shown that weighted angular moments derived from jet constituents encode the colour connections between partons that seed the jets. This paper presents measurements of two such distributions, the jet-pull angle and jet-pull magnitude, both of which are derived from the jet-pull angular moment. The measurement is performed in delivered by the Large Hadron Collider. The observables are measured for two dijet systems, corresponding to the colour-connected daughters of the Wboson and the two b-jets from the top-quark decays, which are not expected to be colour connected. To allow the comparison of the measured distributions to colour model predictions, the measured distributions are unfolded to particle level, after correcting for experimental effects introduced by the detector. While good agreement can be found for some combinations of predictions and observables, none of the predictions describes the data well across all observables.
sted, utgiver, år, opplag, sider
SPRINGER , 2018. Vol. 78, nr 10, artikkel-id 847
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-369907DOI: 10.1140/epjc/s10052-018-6290-2ISI: 000448080300001OAI: oai:DiVA.org:uu-369907DiVA, id: diva2:1272097
Forskningsfinansiär
Swedish Research CouncilEU, European Research CouncilEU, FP7, Seventh Framework ProgrammeEU, Horizon 2020
Merknad
For complete list of authors see http://dx.doi.org/10.1140/epjc/s10052-018-6290-2
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