Measurement of colour flow with the jet pull angle in t¯tevents using the ATLAS detector at √s=8TeV

Aad, G.G.AadAbbott, B.B.AbbottAbdallah, J.J.AbdallahAbdinov, O.O.AbdinovAben, R.R.AbenAbolins, M.M.AbolinsAbouZeid, O. S.O. S.AbouZeidAbramowicz, H.H.AbramowiczAbreu, H.H.AbreuAbreu, R.R.AbreuZwalinski, L.L.Zwalinski2021-11-222021-11-222015https://resolver.sub.uni-goettingen.de/purl?gro-2/93362The distribution and orientation of energy inside jets is predicted to be an experimental handle on colour connections between the hard-scatter quarks and gluons initiating the jets. This Letter presents a measurement of the distribution of one such variable, the jet pull angle. The pull angle is measured for jets produced in t¯tevents with one Wboson decaying leptonically and the other decaying to jets using 20.3fb−1of data recorded with the ATLAS detector at a centre-of-mass energy of √s=8TeVat the LHC. The jet pull angle distribution is corrected for detector resolution and acceptance effects and is compared to various models.enCC BY 4.0http://creativecommons.org/licenses/by/4.0/colour flow; jet pull angle; ATLAS detector530Measurement of colour flow with the jet pull angle in t¯tevents using the ATLAS detector at √s=8TeVjournal_article10.1016/j.physletb.2015.09.051https://resolver.sub.uni-goettingen.de/purl?gs-1/12680openAccess