Constraints on Non-standard Top Quark Couplings
| Autor: | Nicolas Greiner, Scott Willenbrock, Cen Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Quark
Physics Nuclear and High Energy Physics Particle physics Gauge boson Top quark High Energy Physics::Lattice Electroweak interaction High Energy Physics::Phenomenology FOS: Physical sciences Observable Technicolor Tree (descriptive set theory) High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Effective field theory High Energy Physics::Experiment |
| Popis: | We study non-standard top quark couplings in the effective field theory approach. All nine dimension-six operators that generate anomalous couplings between the electroweak gauge bosons and the third-generation quarks are included. We calculate their contributions at tree level and one loop to all major precision electroweak observables. The calculations are compared with data to obtain constraints on eight of these operators. 26 pages, 2 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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