Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/19443
Title: Azimuthal separation in nearly back-to-back jet topologies in inclusive 2- and 3-jet events in pp collisions at √s=13Te
Authors: Sirunyan, AM
Tumasyan, A
Adam, W
Ambrogi, F
Asilar, E
Bergauer, T
Brandstetter, J
Brondolin, E
Dragicevic, M
Erö, J
Del Valle, AE
Flechl, M
Frühwirth, R
Ghete, VM
Hrubec, J
Jeitler, M
Krammer, N
Krätschmer, I
Liko, D
Madlener, T
Mikulec, I
Rad, N
Rohringer, H
Schieck, J
Schöfbeck, R
Spanring, M
Spitzbart, D
Taurok, A
Waltenberger, W
Wittmann, J
Wulz, CE
Zarucki, M
Chekhovsky, V
Mossolov, V
Gonzalez, JS
De Wolf, EA
Di Croce, D
Janssen, X
Lauwers, J
Pieters, M
Van De Klundert, M
Van Haevermaet, H
Van Mechelen, P
Van Remortel, N
Zeid, SA
Blekman, F
D’Hondt, J
De Bruyn, I
De Clercq, J
Deroover, K
Flouris, G
Lontkovskyi, D
Lowette, S
Marchesini, I
Moortgat, S
Moreels, L
Python, Q
Skovpen, K
Tavernier, S
Van Doninck, W
Van Mulders, P
Van Parijs, I
Beghin, D
Bilin, B
Brun, H
Clerbaux, B
De Lentdecker, G
Delannoy, H
Dorney, B
Fasanella, G
Favart, L
Goldouzian, R
Grebenyuk, A
Kalsi, AK
Lenzi, T
Luetic, J
Postiau, N
Starling, E
Thomas, L
Velde, CV
Vanlaer, P
Vannerom, D
Wang, Q
Cornelis, T
Dobur, D
Fagot, A
Gul, M
Khvastunov, I
Poyraz, D
Roskas, C
Trocino, D
Tytgat, M
Verbeke, W
Vermassen, B
Vit, M
Zaganidis, N
Bakhshiansohi, H
Bondu, O
Brochet, S
Bruno, G
Keywords: CMS;Physics;QCD;Jets;Azimuthal angle;MC generators
Issue Date: 1-Sep-2019
Publisher: Springer Verlag
Citation: European Physical Journal C, 2019, 79 (9)
Abstract: A measurement for inclusive 2- and 3-jet events of the azimuthal correlation between the two jets with the largest transverse momenta, Δϕ12Δϕ12, is presented. The measurement considers events where the two leading jets are nearly collinear (“back-to-back”) in the transverse plane and is performed for several ranges of the leading jet transverse momentum. Proton-proton collision data collected with the CMS experiment at a center-of-mass energy of 13TeV13TeVand corresponding to an integrated luminosity of 35.9fb−135.9fb−1 are used. Predictions based on calculations using matrix elements at leading-order and next-to-leading-order accuracy in perturbative quantum chromodynamics supplemented with leading-log parton showers and hadronization are generally in agreement with the measurements. Discrepancies between the measurement and theoretical predictions are as large as 15%, mainly in the region 177∘<Δϕ12<180∘177∘<Δϕ12<180∘ . The 2- and 3-jet measurements are not simultaneously described by any of models.
URI: http://bura.brunel.ac.uk/handle/2438/19443
DOI: http://dx.doi.org/10.1140/epjc/s10052-019-7276-4
ISSN: 1434-6044
http://dx.doi.org/10.1140/epjc/s10052-019-7276-4
Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

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