@article{3dbe53f3b0314823a23d09fe6f72dcac,
title = "Measurement of the mass difference between top and anti-top quarks in pp collisions at √s=7 TeV using the ATLAS detector",
abstract = "A measurement of the mass difference between top and anti-top quarks is presented. In a 4.7 fb−1 data sample of proton–proton collisions at s=7 TeV recorded with the ATLAS detector at the LHC, events consistent with tt¯ production and decay into a single charged lepton final state are reconstructed. For each event, the mass difference between the top and anti-top quark candidate is calculated. A two b-tag requirement is used in order to reduce the background contribution. A maximum likelihood fit to these per-event mass differences yields Δm≡mt−mt¯=0.67±0.61(stat)±0.41(syst) GeV, consistent with CPT invariance.",
author = "{ATLAS Collaboration} and G. Aad and T. Abajyan and B. Abbott and J. Abdallah and {Abdel Khalek}, S. and O. Abdinov and R. Aben and B. Abi and M. Abolins and AbouZeid, {O. S.} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and Addy, {T. N.} and J. Adelman and S. Adomeit and T. Adye and S. Aefsky and T. Agatonovic-Jovin and Aguilar-Saavedra, {J. A.} and M. Agustoni and Ahlen, {S. P.} and A. Ahmad and F. Ahmadov and M. Ahsan and G. Aielli and {\AA}kesson, {T. P.A.} and G. Akimoto and Akimov, {A. V.} and Alam, {M. A.} and J. Albert and S. Albrand and {Alconada Verzini}, {M. J.} and M. Aleksa and Aleksandrov, {I. N.} and F. Alessandria and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and M. Aliev and G. Alimonti and L. Alio and J. Alison and Allbrooke, {B. M.M.} and Lee, {J. S.H.}",
note = "Publisher Copyright: {\textcopyright} 2013 The Authors",
year = "2014",
month = jan,
day = "20",
doi = "10.1016/j.physletb.2013.12.010",
language = "English",
volume = "728",
pages = "363--379",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier B.V.",
}