Measurement of jet shapes in top-quark pair events at root s=7 TeV using the ATLAS detector


Aad G., Abajyan T., Abbott B., Abdallah J., Khalek S. A. , Abdelalim A. A. , ...Daha Fazla

EUROPEAN PHYSICAL JOURNAL C, cilt.73, 2013 (SCI İndekslerine Giren Dergi) identifier identifier identifier

Özet

A measurement of jet shapes in top-quark pair events using 1.8 fb(-1) of pp collision data recorded by the ATLAS detector at the LHC is presented. Samples of top-quark pair events are selected in both the single-lepton and dilepton final states. The differential and integrated shapes of the jets initiated by bottom-quarks from the top-quark decays are compared with those of the jets originated by light-quarks from the hadronic W-boson decays in the single-lepton channel. The light-quark jets are found to have a narrower distribution of the momentum flow inside the jet area than b-quark jets.