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

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ATLAS Collaboration. Measurement of colour flow with the jet pull angle in tt ̄ events using the ATLAS detector at √s = 8 TeV. Phys Lett B , 2015.

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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.

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https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37376463

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