Dimension-seven operator contribution to the top quark anomalous interactions
V.V. Denisov, S.R. Slabospitskii
TL;DR
This paper investigates how dimension-seven operators influence flavor-changing neutral current interactions of top quarks with photons and gluons, deriving relevant Lagrangians, Feynman rules, and decay widths.
Contribution
It introduces the effects of dimension-seven operators on top quark FCNC interactions, providing new theoretical expressions and decay width calculations.
Findings
Derived phenomenological Lagrangian and Feynman rules for dimension-seven operators.
Calculated decay widths for various FCNC top quark decay channels.
Enhanced understanding of higher-dimensional operator contributions to top quark interactions.
Abstract
The contribution of dimension-seven operators to anomalous FCNC-interactions of the t-quarks with a photon and a gluon is considered. The phenomenological Lagrangian and Feynman rules are derived. There are evaluated the expressions for the widths FCNC-decays of the t-quark into light quark and two photons, two gluons, a photon and a gluon, and three quarks.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Black Holes and Theoretical Physics