Measurement of the k t splitting scales in Z → ℓℓ events in pp collisions at √s = 8 TeV with the ATLAS detector
Metadatos
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Springer Nature
Materia
Hadron-Hadron scattering (experiments)
Fecha
2017-08-08Referencia bibliográfica
The ATLAS collaboration., Aaboud, M., Aad, G. et al. Measurement of the k t splitting scales in Z → ℓℓ events in pp collisions at √s = 8 TeV with the ATLAS detector. J. High Energ. Phys. 2017, 26 (2017). https://doi.org/10.1007/JHEP08(2017)026
Patrocinador
CERN; MINECO; EPLANET; ERC; ERDF; FP7; Horizon 2020; Marie Skłodowska-Curie Actions; CERCA Programme Generalitat de Catalunya; Generalitat ValencianaResumen
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 pT 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.