Speaker
Description
Single top quark production has been employed as a powerful and sensitive process to search
for new physics signs by many experiments. In this work we propose and investigate a search
for top quark flavor changing neutral currents (FCNC) via photon through the single top quark production in proton-proton collisions. We show that the direct single top quark final state can provide constraints on the strength of top-quark-gamma and top-quark-gluon FCNC interactions simultaneously. The results of a search for the direct top quark production at the LHC at a center-of-mass energy of 8 TeV performed by ATLAS collaboration are used to set first experimental limits on the anomalous top-quark-gamma FCNC couplings through direct top quark production.
Summary
In this study the potential of the direct top production for probing anomalous tqgamma interaction in proton-proton collisions is investigated. In addition, experimental results are used to prove the sensitivity of the proposed channel and tight constraint are set on the strength of the tqgamma anomalous couplings.
