| Issue |
EPJ Web of Conferences
Volume 49, 2013
HCP 2012 – Hadron Collider Physics Symposium 2012
|
|
|---|---|---|
| Article Number | 17010 | |
| Number of page(s) | 5 | |
| Section | Top quark | |
| DOI | https://doi.org/10.1051/epjconf/20134917010 | |
| Published online | 20 May 2013 | |
https://doi.org/10.1051/epjconf/20134917010
Probing non-standard top-quark couplings via optimal-observable analyses at LHC
Institute of Theoretical Physics, University of Tokushima, Tokushima, 770-8502, Japan
a e-mail: hioki@ias.tokushima-u.ac.jp
b e-mail: ohkuma@fukui-ut.ac.jp
Focusing attention on top-quark pair production and its decay processes at the LHC, non-standard top-quark couplings are studied based on the effective Lagrangian constructed with SU(3)×SU(2)×U(1) invariant dimension-6 operators. The optimal-observable analysis is carried out for the charged-lepton distributions in pp → tt̅X → ℓ +X' (ℓ = e or μ) in order to estimate the expected statistical uncertainties in measurements of those non-standard tt̅g and tbW couplings that contribute to this process in the leading order.
© Owned by the authors, published by EDP Sciences, 2013
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