Top-quark production in ATLAS

International Workshop on Discovery Physics at the LHC 2012

De Lima, Danilo Enoque Ferreira^1

Kelvin Building, University of Glasgow, Glasgow G12 8QQ, United Kingdom^1

关键词: ATLAS detectors;    CKM matrix;    Differential measurements;    Final state;    Large Hadron Collider;    Measurements of;    Neutral currents;    Proton proton collisions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/455/1/012014/pdf
DOI  :  10.1088/1742-6596/455/1/012014

来源: IOP

【 摘 要 】

Measurements of the top-quark production cross-sections in proton-proton collisions with the ATLAS detector at the Large Hadron Collider are presented. The measurement require no, one or two electrons or muons in the final state (hadronic, single lepton or dilepton channel). In addition, the decay modes with tau leptons are presented (channels with tau leptons). Differential measurements of t final states are presented, in particular, measurements that are able to constrain the modelling of additional parton radiation. Measurements of single top-quark production in the t- and Wt-channels are presented and determination of the CKM matrix element |Vtb| is discussed. In addition, the s-channel production is explored and limits on exotic production in single top-quark processes are discussed. This also includes the search for flavour changing neutral currents and the search for additional W′ bosons in the s-channel.