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Measurement of the k t splitting scales in Z → ℓℓ events in pp collisions at √s = 8 TeV with the ATLAS detector

CollaborationWith : Ancu, Lucian Stefan / Benoit, Mathieu / Bilbao De Mendizabal, Javier / Calace, Noemi / Clark, Allan Geoffrey / Coccaro, Andrea / Delitzsch, Chris Malena / Della Volpe, Domenico / Di Bello, Francesco Armando / Dubreuil, Arnaud / Ferrere, Didier / Golling, Tobias / Gonzalez Sevilla, Sergio / Iacobucci, Giuseppe / Jansky, Roland / Katre, Akshay / Khoo, Teng Jian / Lanfermann, Marie Christine / Lionti, Anthony Eric / March Ruiz, Luis / Mermod, Philippe / Nackenhorst, Olaf / Nessi, Marzio / Paolozzi, Lorenzo / Ristic, Branislav / Schramm, Steven / Sfyrla, Anna / Wu, Xin
Published in . 2017, vol. 1708, p. 026-67
Collection Open Access - SCOAP3
Abstract A measurement of the splitting scales occuring in the k t jet-clustering algorithm is presented for final states containing a Z boson. The measurement is done using 20.2 fb −1 of proton-proton collision data collected at a centre-of-mass energy of √s = 8 TeV by the ATLAS experiment at the LHC in 2012. The measurement is based on chargedparticle track information, which is measured with excellent precision in the p T region relevant for the transition between the perturbative and the non-perturbative regimes. The data distributions are corrected for detector effects, and are found to deviate from state-of-the-art predictions in various regions of the observables.
Keywords Hadron-Hadron scattering (experiments)
arXiv: 1704.01530
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ATLAS COLLABORATION. Measurement of the k t splitting scales in Z → ℓℓ events in pp collisions at √s = 8 TeV with the ATLAS detector. In: Journal of High Energy Physics, 2017, vol. 1708, p. 026-67. doi: 10.1007/JHEP08(2017)026 https://archive-ouverte.unige.ch/unige:96455

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Deposited on : 2017-09-01

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