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arXiv · 1104.4945

Search for anomalous top quark production at the early LHC

Jun Gao·Chong Sheng Li·Li Lin Yang·Hao Zhang
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Abstract

We present a detailed study of the anomalous top quark production with subsequent decay at the LHC induced by model-independent flavor-changing neutral-current couplings, incorporating the complete next-to-leading order QCD effects. Our results show that, taking into account the current limits from the Tevatron, the LHC with $\sqrt{s}=7$ TeV may discover the anomalous coupling at 5$σ$ level for a very low integrated luminosity of 61 pb$^{-1}$. The discovery potentials for the anomalous couplings at the LHC are examined in detail. We also discuss the possibility of using the charge ratio to distinguish the $tug$ and $tcg$ couplings.

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Jun Gao, Chong Sheng Li, Li Lin Yang, Hao Zhang. 2011-10-23. Search for anomalous top quark production at the early LHC. https://doi.org/10.1103/physrevlett.107.092002

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