par Tumasyan, A.;Beghin, Diego
;Bilin, Bugra
;Clerbaux, Barbara
;De Lentdecker, Gilles
;Favart, Laurent
;Grebenyuk, Anastasia
;Kalsi, Amandeep Kaur
;Lee, Kyeongpil
;Mahdavikhorrami, Mostafa
;Makarenko, Inna
;Malara, Andrea
;Moureaux, Louis
;Pétré, Laurent
;Popov, Andrey
;Postiau, Nicolas
;Starling, Elizabeth Rose
;Thomas, Laurent
;Vanden Bemden, Max
;Vander Velde, Catherine
;Vanlaer, Pascal
;Vannerom, David
;Wezenbeek, Liam
; [et al.]
Référence The journal of high energy physics (Online), 2021, 12, 180
Publication Publié, 2021-12-01






















Référence The journal of high energy physics (Online), 2021, 12, 180
Publication Publié, 2021-12-01
Article révisé par les pairs
Résumé : | 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 |