Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/24372
Title: Measurement of the inclusive and differential t t¯ γ cross sections in the single-lepton channel and EFT interpretation at √s = 13 TeV
Authors: Tumasyan, A
Adam, W
Andrejkovic, JW
Bergauer, T
Chatterjee, S
Dragicevic, M
Escalante Del Valle, A
Frühwirth, R
Jeitler, M
Krammer, N
Lechner, L
Tavernier, S
Van Doninck, W
Van Mulders, P
Beghin, D
Bilin, B
Clerbaux, B
De Lentdecker, G
Favart, L
Grebenyuk, A
Kalsi, AK
Lee, K
Mahdavikhorrami, M
Makarenko, I
Moureaux, L
Pétré, L
Popov, A
Postiau, N
Starling, E
Thomas, L
Vanden Bemden, M
Vander Velde, C
Vanlaer, P
Vannerom, D
Wezenbeek, L
Cornelis, T
Dobur, D
Knolle, J
Lambrecht, L
Mestdach, G
Niedziela, M
Roskas, C
Samalan, A
Skovpen, K
Tytgat, M
Verbeke, W
Vermassen, B
Vit, M
Bethani, A
Bruno, G
Bury, F
Caputo, C
David, P
Delaere, C
Donertas, IS
Giammanco, A
Jaffel, K
Jain, S
Lemaitre, V
Mondal, K
Prisciandaro, J
Taliercio, A
Teklishyn, M
Tran, TT
Vischia, P
Wertz, S
Alves, GA
Coldham, K
Cole, JE
Khan, A
Kyberd, P
Reid, ID
Teodorescu, L
Zahid, S
Liko, D
Mikulec, I
Paulitsch, P
Pitters, FM
Schieck, J
Schöfbeck, R
Spanring, M
Templ, S
Waltenberger, W
Wulz, CE
Chekhovsky, V
Litomin, A
Makarenko, V
Darwish, MR
De Wolf, EA
Janssen, X
Kello, T
Lelek, A
Rejeb Sfar, H
Van Mechelen, P
Van Putte, S
Van Remortel, N
Blekman, F
Bols, ES
D’Hondt, J
De Clercq, J
Delcourt, M
El Faham, H
Lowette, S
Moortgat, S
Morton, A
Müller, D
Sahasransu, AR
Keywords: hadron-hadron scattering (experiments);Top physics
Issue Date: 23-Dec-2021
Publisher: Springer Nature on behalf of SISSA
Citation: CMS collaboration, Tumasyan, A. et al. (2021) 'Measurement of the inclusive and differential t t¯ γ cross sections in the single-lepton channel and EFT interpretation at √s = 13 TeV', Journal of High Energy Physics, 2021, 2021 (12), 180, pp. 1-59. doi: 10.1007/JHEP12(2021)180.
Abstract: Copyright © CERN, for the benefit of the CMS Collaboration. The production cross section of a top quark pair in association with a photon is measured in proton-proton collisions at a center-of-mass energy of 13 TeV. The data set, corresponding to an integrated luminosity of 137 fb−1, was recorded by the CMS experiment during the 2016–2018 data taking of the LHC. The measurements are performed in a fiducial volume defined at the particle level. Events with an isolated, highly energetic lepton, at least three jets from the hadronization of quarks, among which at least one is b tagged, and one isolated photon are selected. The inclusive fiducial tt ¯ γ cross section, for a photon with transverse momentum greater than 20 GeV and pseudorapidity |η| < 1.4442, is measured to be 798 ± 7(stat) ± 48(syst) fb, in good agreement with the prediction from the standard model at next-to-leading order in quantum chromodynamics. The differential cross sections are also measured as a function of several kinematic observables and interpreted in the framework of the standard model effective field theory (EFT), leading to the most stringent direct limits to date on anomalous electromagnetic dipole moment interactions of the top quark and the photon. [Figure not available: see fulltext.].
Description: A preprint version of the article is available at arXiv (https://arxiv.org/abs/2107.01508).
URI: https://bura.brunel.ac.uk/handle/2438/24372
DOI: https://doi.org/10.1007/JHEP12(2021)180
ISSN: 1126-6708
Other Identifiers: 180
180
Appears in Collections:Dept of Electronic and Computer Engineering Research Papers

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