@article{4c4160dbc4784c55a00b97443c92d30e,
title = "Measurements of inclusive and differential cross-sections of tt¯γ production in pp collisions at s = 13 TeV with the ATLAS detector",
abstract = "Inclusive and differential cross-sections are measured at particle level for the associated production of a top quark pair and a photon (tt¯γ). The analysis is performed using an integrated luminosity of 140 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV collected by the ATLAS detector. The measurements are performed in the single-lepton and dilepton top quark pair decay channels focusing on tt¯γ topologies where the photon is radiated from an initial-state parton or one of the top quarks. The absolute and normalised differential cross-sections are measured for several variables characterising the photon, lepton and jet kinematics as well as the angular separation between those objects. The observables are found to be in good agreement with the Monte Carlo predictions. The photon transverse momentum differential distribution is used to set limits on effective field theory parameters related to the electroweak dipole moments of the top quark. The combined limits using the photon and the Z boson transverse momentum measured in tt¯ production in associations with a Z boson are also set.",
keywords = "Hadron-Hadron Scattering",
author = "G. Aad and E. Aakvaag and B. Abbott and K. Abeling and Abicht, {N. J.} and Abidi, {S. H.} and M. Aboelela and A. Aboulhorma and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, {B. S.} and A. Ackermann and {Adam Bourdarios}, C. and L. Adamczyk and Addepalli, {S. V.} and Addison, {M. J.} and J. Adelman and A. Adiguzel and T. Adye and Affolder, {A. A.} and Y. Afik and Agaras, {M. N.} and J. Agarwala and A. Aggarwal and C. Agheorghiesei and A. Ahmad and F. Ahmadov and Ahmed, {W. S.} and S. Ahuja and X. Ai and G. Aielli and A. Aikot and L. Barak and G. Bella and Y. Benhammou and Biswal, {J. P.} and B. Chen and E. Etzion and Frid, {Y. Y.} and O. Kuprash and Lutz, {M. S.} and R. Nayak and G. Ninio and {Pascual Dominguez}, L. and D. Reikher and {Salvador Salas}, A. and A. Soffer and Tamir, {N. M.} and D. Vannicola and {Ait Tamlihat}, M. and B. Aitbenchikh and I. Aizenberg and M. Akbiyik and {\AA}kesson, {T. P.A.} and Akimov, {A. V.} and D. Akiyama and Akolkar, {N. N.} and S. Aktas and {Al Khoury}, K. and Alberghi, {G. L.} and J. Albert and S. Istin and E. Kajomovitz and L. Moleri and Y. Rozen and S. Tarem and P. Albicocco and Albouy, {G. L.} and S. Alderweireldt and Alegria, {Z. L.} and Citron, {Z. H.}",
note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",
year = "2024",
month = oct,
day = "1",
doi = "https://doi.org/10.1007/JHEP10(2024)191",
language = "الإنجليزيّة",
volume = "2024",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "10",
}