Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/22149
Title: Observation of electroweak production of Wγ with two jets in proton-proton collisions at s=13 TeV
Authors: Sirunyan, AM
Tumasyan, A
Adam, W
Ambrogi, F
Bergauer, T
Dragicevic, M
Erö, J
Escalante Del Valle, A
Frühwirth, R
Jeitler, M
Krammer, N
Lechner, L
Liko, D
Madlener, T
Mikulec, I
Pitters, FM
Rad, N
Schieck, J
Schöfbeck, R
Spanring, M
Templ, S
Waltenberger, W
Wulz, CE
Zarucki, M
Chekhovsky, V
Litomin, A
Makarenko, V
Suarez Gonzalez, J
Darwish, MR
De Wolf, EA
Di Croce, D
Janssen, X
Kello, T
Lelek, A
Pieters, M
Rejeb Sfar, H
Van Haevermaet, H
Van Mechelen, P
Van Putte, S
Van Remortel, N
Blekman, F
Bols, ES
Chhibra, SS
D'Hondt, J
De Clercq, J
Lontkovskyi, D
Lowette, S
Marchesini, I
Moortgat, S
Morton, A
Python, Q
Tavernier, S
Van Doninck, W
Van Mulders, P
Beghin, D
Bilin, B
Clerbaux, B
De Lentdecker, G
Dorney, B
Favart, L
Grebenyuk, A
Kalsi, AK
Makarenko, I
Moureaux, L
Pétré, L
Popov, A
Postiau, N
Starling, E
Thomas, L
Vander Velde, C
Vanlaer, P
Vannerom, D
Wezenbeek, L
Cornelis, T
Dobur, D
Gruchala, M
Khvastunov, I
Niedziela, M
Roskas, C
Skovpen, K
Tytgat, M
Verbeke, W
Vermassen, B
Vit, M
Bruno, G
Bury, F
Caputo, C
David, P
Delaere, C
Delcourt, M
Donertas, IS
Giammanco, A
Lemaitre, V
Mondal, K
Prisciandaro, J
Taliercio, A
Teklishyn, M
Vischia, P
Wuyckens, S
Zobec, J
Keywords: CMS;Physics
Issue Date: 2020
Publisher: Elsevier
Citation: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2020
Abstract: © 2020 The Author(s) A first observation is presented for the electroweak production of a W boson, a photon, and two jets in proton-proton collisions. The W boson decays are selected by requiring one identified electron or muon and an imbalance in transverse momentum. The two jets are required to have a high dijet mass and a large separation in pseudorapidity. The measurement is based on data collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The observed (expected) significance for this process is 4.9 (4.6) standard deviations. After combining with previously reported CMS results at 8 TeV, the observed (expected) significance is 5.3 (4.8) standard deviations. The cross section for the electroweak Wγjj production in a restricted fiducial region is measured as 20.4±4.5fb and the total cross section for Wγ production in association with 2 jets in the same fiducial region is 108±16fb. All results are in good agreement with recent theoretical predictions. Constraints are placed on anomalous quartic gauge couplings in terms of dimension-8 effective field theory operators.
URI: http://bura.brunel.ac.uk/handle/2438/22149
DOI: http://dx.doi.org/10.1016/j.physletb.2020.135988
ISSN: 0370-2693
Appears in Collections:Dept of Electronic and Computer Engineering Research Papers

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