# Searching for anomalous top quark production at the early LHC

Gao, J; Li, C S; Yang, L L; Zhang, H (2011). Searching for anomalous top quark production at the early LHC. Physical Review Letters, 107(9):092002.

## 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 √s=7  TeV may discover the anomalous coupling at 5σ 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.

## 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 √s=7  TeV may discover the anomalous coupling at 5σ 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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Item Type: Journal Article, refereed, original work 07 Faculty of Science > Institute for Computational Science 530 Physics English April 2011 19 Feb 2012 12:57 07 Dec 2017 11:22 American Physical Society 0031-9007 (P) 1079-7114 (E) https://doi.org/10.1103/PhysRevLett.107.092002 http://arxiv.org/abs/1104.4945

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