Full analysis of general non-standard tbW couplings
| Autor: | Kazumasa Ohkuma, Zenrō Hioki |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Quark
Physics Coupling constant Top quark Particle physics Nuclear and High Energy Physics Large Hadron Collider Anomalous top couplings 010308 nuclear & particles physics Physics beyond the Standard Model Scalar (mathematics) FOS: Physical sciences Top decay Observable 01 natural sciences lcsh:QC1-999 High Energy Physics - Experiment High Energy Physics - Phenomenology High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Higgs boson 010306 general physics Effective-Lagrangian approach lcsh:Physics |
| Zdroj: | Physics Letters B Physics Letters B, Vol 752, Iss C, Pp 128-130 (2016) |
| Popis: | Possible non-standard couplings which could contribute to the t -> b W 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. One comment and two related references added. Final version to appear in Phys.Lett.B |
| Databáze: | OpenAIRE |
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