Journal Article

Measurement of thek_(\\mathrm{t}{}{s})plitting scales inZ → ℓℓevents inppcollisions at√s̅ = 8TeV with the ATLAS detector

Kukla, R., Aaboud, M., Lucotte, A., Trocmé, B., Yatsenko, E., Zhao, Y., Jézéquel, S., Koletsou, I., Madaffari, D., Hubaut, F., Ellajosyula, V., Fayard, L., Diaconu, C., Schaffer, A.C., Liu, K., Hrivnac, J., Meideck, T., Hallewell, G.D., Binet, S., Gabaldon, C., Ledroit-Guillon, F., Hadef, A., Grevtsov, K., Bourdarios, C., Makovec, N., Rybkin, G., Hariri, F., Rahal, G., Petit, E., Lafaye, R., Fournier, D., Serin, L., Todorova-Nova, S., Lleres, A., Corga, K. de Vasconcelos, Burger, A.M., Elles, S., Kivernyk, O., Camincher, C., Kosseifi, R. El, Nellist, C., Lorenzo Martinez, N., Crépé-Renaudin, S., Monnier, E., Grivaz, J.-F., Smart, B.H., de Vivie de Regie, J.B., Le Guirriec, E., Hryn’ova, T., Morange, N., Scifo, E., Lévêque, Jérémy, Alstaty, M., Berger, N., Readioff, N.P., Sauvan, E., Renaud, A., Wingerter-Seez, I., Puzo, P., Simion, S., Escalier, M., Malek, F., Ayoub, M.K., Poggioli, L., Stark, J., Guillemin, T., Coadou, Y., Barbero, M., Duflot, L., Zhang, Zhongkai, Muanza, S., Bassalat, A., Berlendis, S., Lounis, A., Di Ciaccio, L., Petroff, P., Vallier, A., Calandri, A., Iconomidou-Fayard, L., Mastrandea, P., Gkougkousis, E.L., Aad, G., Feligion

2017

Overview

A measurement of the splitting scales occuring in thek_(\\mathrm{t}{}{j})et-clustering algorithm is presented for final states containing aZboson. The measurement is done using 20.2 fb ⁻¹of proton-proton collision data collected at a centre-of-mass energy of√s̅ = 8TeV by the ATLAS experiment at the LHC in 2012. The measurement is based on charged-particle track information, which is measured with excellent precision in thep_(\\mathrm{T}{}{r})egion 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.

• Publisher: Springer
• Subject: High Energy Physics - Experiment / Physics