@article{0c899c27c94749469051fee10c6123df,
title = "Measurement of the tt¯ γ production cross section in proton-proton collisions at √s=8 TeV with the ATLAS detector",
abstract = "The cross section of a top-quark pair produced in association with a photon is measured in proton-proton collisions at a centre-of-mass energy of s=8 TeV with 20.2 fb−1 of data collected by the ATLAS detector at the Large Hadron Collider in 2012. The measurement is performed by selecting events that contain a photon with transverse momentum pT > 15 GeV, an isolated lepton with large transverse momentum, large missing transverse momentum, and at least four jets, where at least one is identified as originating from a b-quark. The production cross section is measured in a fiducial region close to the selection requirements. It is found to be 139 ± 7 (stat.) ± 17 (syst.) fb, in good agreement with the theoretical prediction at next-to-leading order of 151 ± 24 fb. In addition, differential cross sections in the fiducial region are measured as a function of the transverse momentum and pseudorapidity of the photon.[Figure not available: see fulltext.].",
keywords = "Hadron-Hadron scattering (experiments), Top physics",
author = "{The ATLAS collaboration} and M. Aaboud and G. Aad and B. Abbott and O. Abdinov and B. Abeloos and Abidi, {S. H.} and AbouZeid, {O. S.} and Abraham, {N. L.} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, {B. S.} and S. Adachi and L. Adamczyk and J. Adelman and M. Adersberger and T. Adye and Affolder, {A. A.} and T. Agatonovic-Jovin and C. Agheorghiesei and Aguilar-Saavedra, {J. A.} and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and S. Akatsuka and H. Akerstedt and {\AA}kesson, {T. P.A.} and E. Akilli and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and P. Albicocco and {Alconada Verzini}, {M. J.} and Alderweireldt, {S. C.} and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and G. Alexander and T. Alexopoulos and M. Alhroob and B. Ali and M. Aliev and G. Alimonti and J. Alison and Alkire, {S. P.} and Allbrooke, {B. M.M.} and Allen, {B. W.} and Citron, {Z. H.} and M. Pitt and P. Balek and S. Bressler and E. Duchovni and M. Dumancic and E. Gross and Kohler, {M. K.} and D. Lellouch and Levinson, {L. J.} and G. Mikenberg and A. Milov and I. Ravinovich and J. Shlomi and V. Smakhtin and D. Turgeman and M. Bellomo and S. Cheatham and O. Gabizon and S. Istin and E. Kajomovitz and J. Meyer and Y. Rozen and S. Tarem and A. Ashkenazi and L. Barak and G. Bella and Y. Benhammou and T. Cao and E. Etzion and O. Kuprash and Lutz, {M. S.} and Y. Oren and A. Soffer",
note = "Publisher Copyright: {\textcopyright} 2017, The Author(s).",
year = "2017",
month = nov,
day = "1",
doi = "https://doi.org/10.1007/JHEP11(2017)086",
language = "American English",
volume = "2017",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "11",
}