Hioki, Zenro University of Tokushima Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Ohkuma, Kazumasa Okayama University of Science
Anomalous top couplings
Possible non-standard couplings which could contribute to the t → bW process are studied based on the effective-Lagrangian approach. The corresponding effective Lagrangian consists of four kinds of dimension-6 effective operators, each of which has an independent coupling constant. In this analysis, all those couplings are treated as complex numbers and constraints on them are estimated by using recent experimental data from the LHC. We point out that the resultant constraints on those couplings are still not that strong because contributions from some couplings can work oppositely with each other.
Physics Letters B
© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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physletb_752_128.pdf 218 KB
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