TY - JOUR
T1 - Constraints on nonstandard top quark couplings
AU - Zhang, Cen
AU - Greiner, Nicolas
AU - Willenbrock, Scott
PY - 2012/7/25
Y1 - 2012/7/25
N2 - We study nonstandard 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.
AB - We study nonstandard 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.
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U2 - 10.1103/PhysRevD.86.014024
DO - 10.1103/PhysRevD.86.014024
M3 - Article
AN - SCOPUS:84864433673
SN - 1550-7998
VL - 86
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 1
M1 - 014024
ER -