Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/18205
Title: Search for new physics in dijet angular distributions using proton–proton collisions at √s=13TeV and constraints on dark matter and other models
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
Friedl, M
Frühwirth, R
Ghete, VM
Grossmann, J
Hrubec, J
Jeitler, M
König, A
Krammer, N
Krätschmer, I
Liko, D
Madlener, T
Mikulec, I
Pree, E
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
Seva, T
Starling, E
Velde, CV
Vanlaer, P
Vannerom, D
Yonamine, R
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
Issue Date: 28-Sep-2018
Publisher: Springer Verlag
Citation: European Physical Journal C, 2018, 78 (9)
Abstract: A search is presented for physics beyond the standard model, based on measurements of dijet angular distributions in proton–proton collisions at s=13TeV. The data collected with the CMS detector at the LHC correspond to an integrated luminosity of 35.9fb-1. The observed distributions, corrected to particle level, are found to be in agreement with predictions from perturbative quantum chromodynamics that include electroweak corrections. Constraints are placed on models containing quark contact interactions, extra spatial dimensions, quantum black holes, or dark matter, using the detector-level distributions. In a benchmark model where only left-handed quarks participate, contact interactions are excluded at the 95% confidence level up to a scale of 12.8 or 17.5TeV, for destructive or constructive interference, respectively. The most stringent lower limits to date are set on the ultraviolet cutoff in the Arkani–Hamed–Dimopoulos–Dvali model of extra dimensions. In the Giudice–Rattazzi–Wells convention, the cutoff scale is excluded up to 10.1TeV. The production of quantum black holes is excluded for masses below 5.9 and 8.2TeV, depending on the model. For the first time, lower limits between 2.0 and 4.6TeVare set on the mass of a dark matter mediator for (axial-)vector mediators, for the universal quark coupling g q = 1.0.
URI: http://bura.brunel.ac.uk/handle/2438/18205
DOI: http://dx.doi.org/10.1140/epjc/s10052-018-6242-x
ISSN: 1434-6044
http://dx.doi.org/10.1140/epjc/s10052-018-6242-x
1434-6052
Appears in Collections:Dept of Electronic and Computer Engineering Research Papers

Files in This Item:
File Description SizeFormat 
FullText.pdf1.09 MBAdobe PDFView/Open


Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.