Constraints on Electroweak Effective Operators at One Loop
| Autor: | Cen Zhang, Nicolas Greiner, Scott Willenbrock, Harrison Mebane |
|---|---|
| Přispěvatelé: | UCL - SST/IRMP - Institut de recherche en mathématique et physique |
| Rok vydání: | 2013 |
| Předmět: |
Physics
Nuclear and High Energy Physics Gauge boson Particle physics Physics beyond the Standard Model Electroweak interaction High Energy Physics::Phenomenology FOS: Physical sciences Technicolor Tree (graph theory) Loop (topology) High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Higgs boson Effective field theory |
| Zdroj: | Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 88, no. 1 (2013) |
| DOI: | 10.48550/arxiv.1306.3380 |
| Popis: | We derive bounds on nine dimension-six operators involving electroweak gauge bosons and the Higgs boson from precision electroweak data. Four of these operators contribute at tree level, and five contribute only at one loop. Using the full power of effective field theory, we show that the bounds on the five loop-level operators are much weaker than previously claimed, and thus much weaker than bounds from tree-level processes at high-energy colliders. Comment: 15 pages |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|