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

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Measurement of colour flow with the jet pull angle in t t¯ events using the ATLAS detector at √s = 8 TeV	1 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1016/j.physletb.2015.09.051

Title: Measurement of colour flow with the jet pull angle in t t¯ events using the ATLAS detector at √s = 8 TeV
Creator: Aad, G.
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Abdallah, J.
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Chelkov, G. A.
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Abbott, B.
Contributor: Томский государственный университет Радиофизический факультет Научные подразделения РФФ
Date: 2015
DOI: 10.1016/j.physletb.2015.09.051
Description: 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.