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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.

© 2011 American Physical Society

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.

© 2011 American Physical Society

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Language:English
Date:April 2011
Deposited On:19 Feb 2012 12:57
Last Modified:07 Dec 2017 11:22
Publisher:American Physical Society
ISSN:0031-9007 (P) 1079-7114 (E)
Publisher DOI:https://doi.org/10.1103/PhysRevLett.107.092002
Related URLs:http://arxiv.org/abs/1104.4945

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Content: Accepted Version
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Download PDF  'Searching for anomalous top quark production at the early LHC'.
Preview
Content: Accepted Version
Filetype: PDF (Version 1)
Size: 213kB