Signs of new physics in top quark pair production associated with a neutrino pair at the LHC

摘要: In this paper, we examine the interactions of top quarks with $Z$ boson using quark pair production associated neutrino ($t\overline{t}{\ensuremath{\nu}}_{l}\overline{{\ensuremath{\nu}}_{l}}$) at LHC. particular, potential constraints on anomalous electroweak are determined by considering two opposite-sign charged leptons, missing energy, and b-tagged jets in final state. The analysis is performed for a high luminosity scenario LHC an integrated $3\text{ }\text{ }{\mathrm{ab}}^{\ensuremath{-}1}$ proton-proton collisions center-of-mass energy 14 TeV. 95% confidence intervals computed couplings realistic detector simulation upgraded CMS including average 200 per bunch crossing. We find that $t\overline{t}{\ensuremath{\nu}}_{l}\overline{{\ensuremath{\nu}}_{l}}$ channel can provide stringent bounds relevant Wilson coefficients has to serve as additional handle beside $t\overline{t}Z(Z\ensuremath{\rightarrow}{l}^{+}{l}^{\ensuremath{-}})$ other channels search new physics.