Constraints on Non-standard Top Quark Couplings

Autor: Zhang, Cen, Greiner, Nicolas, Willenbrock, Scott
Rok vydání: 2012
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevD.86.014024
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.
Comment: 26 pages, 2 figures
Databáze: arXiv