Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/21137
Title: | Measurement of the cross section for electroweak production of a Z boson, a photon and two jets in proton-proton collisions at √s = 13 TeV and constraints on anomalous quartic couplings |
Authors: | Sirunyan, AM Tumasyan, A Adam, W Ambrogi, F Bergauer, T Brandstetter, J Dragicevic, M Erö, J Escalante Del Valle, A Flechl, M Frühwirth, R Jeitler, M Krammer, N Krätschmer, I Liko, D Madlener, T Mikulec, I Rad, N Schieck, J Schöfbeck, R Spanring, M Spitzbart, D Waltenberger, W Wulz, CE Zarucki, M Drugakov, V Mossolov, V Suarez Gonzalez, J Darwish, MR De Wolf, EA Di Croce, D Janssen, X 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 Python, Q Skovpen, K Tavernier, S Van Doninck, W Van Mulders, P Beghin, D Bilin, B Brun, H Clerbaux, B De Lentdecker, G Delannoy, H Dorney, B Favart, L Grebenyuk, A Kalsi, AK Popov, A Postiau, N Starling, E Thomas, L Vander Velde, C Vanlaer, P Vannerom, D Cornelis, T Dobur, D Khvastunov, I Niedziela, M Roskas, C Trocino, D Tytgat, M Verbeke, W Vermassen, B Vit, M Bondu, O Bruno, G Caputo, C David, P Delaere, C Delcourt, M Giammanco, A Lemaitre, V Prisciandaro, J Saggio, A Vidal Marono, M Vischia, P Zobec, J Alves, FL Alves, GA Correia Silva, G Hensel, C Moraes, A Rebello Teles, P Belchior Batista Das Chagas, E |
Keywords: | Electroweak interaction;Hadron-Hadron scattering (experiments) |
Issue Date: | 10-Jun-2020 |
Publisher: | Springer |
Citation: | The CMS collaboration., Sirunyan, A.M., Tumasyan, A. et al. Measurement of the cross section for electroweak production of a Z boson, a photon and two jets in proton-proton collisions at s√ = 13 TeV and constraints on anomalous quartic couplings. J. High Energ. Phys. 2020, 76 (2020). https://doi.org/10.1007/JHEP06(2020)076 |
Abstract: | A measurement is presented of the cross section for electroweak production of a Z boson and a photon in association with two jets (Zγjj) in proton-proton collisions. The Z boson candidates are selected through their decay into a pair of electrons or muons. The process of interest, electroweak Zγjj production, is isolated by selecting events with a large dijet mass and a large pseudorapidity gap between the two jets. The measurement is based on data collected at the CMS experiment at s√ = 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The observed significance of the signal is 3.9 standard deviations, where a significance of 5.2 standard deviations is expected in the standard model. These results are combined with published results by CMS at s√ = 8 TeV, which leads to observed and expected respective significances of 4.7 and 5.5 standard deviations. From the 13 TeV data, a value is obtained for the signal strength of electroweak Zγjj production and bounds are given on quartic vector boson interactions in the framework of dimension-eight effective field theory operators. |
URI: | http://bura.brunel.ac.uk/handle/2438/21137 |
DOI: | https://doi.org/10.1007/JHEP06(2020)076 |
ISSN: | 1126-6708 1029-8479 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
FullText.pdf | 773.4 kB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License