Measurement of colour flow with the jet pull angle in $t\\bart$ events using the ATLAS detector at $\\sqrts=8$ TeV
Journal
Physics Letters
Journal Volume
B750
Pages
475-493
Date Issued
2015
Author(s)
Aad, Georges et al. (The ATLAS Collaboration)
Abstract
The 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 tt- events with one W boson decaying leptonically and the other decaying to jets using 20.3 fb-1 of data recorded with the ATLAS detector at a centre-of-mass energy of s=8 TeV at the LHC. The jet pull angle distribution is corrected for detector resolution and acceptance effects and is compared to various models.
SDGs
Type
journal article