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

CollaborationWith : Ancu, Lucian Stefan / Bell, William / Benhar Noccioli, Eleonora / Bilbao De Mendizabal, Javier / Calace, Noemi / Clark, Allan Geoffrey / Delitzsch, Chris Malena / Della Volpe, Domenico / Ferrere, Didier / Gadomski, Szymon / Golling, Tobias / Gonzalez Sevilla, Sergio / Gramling, Johanna Léna / Guescini, Francesco / Iacobucci, Giuseppe / Katre, Akshay / Mermod, Philippe / Miucci, Antonio / Muenstermann, Daniel / Paolozzi, Lorenzo / Picazio, Attilio / Ristic, Branislav / Schramm, Steven / Schwartz, M. / Tykhonov, Andrii / Vallecorsa, Sofia / Wu, Xin
Published in Physics Letters. B. 2015, vol. 750, p. 475-493
Collection Open Access - SCOAP3
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.
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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. In: Physics Letters. B, 2015, vol. 750, p. 475-493. https://archive-ouverte.unige.ch/unige:75555

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Deposited on : 2015-10-01

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