Polarization of top quark in vector-like quark decay

Understand

Vector-like quarks (VLQs) are attractive extensions to the Standard Model.

• They mix with the SM quarks and can lead to rich phenomenology.
• Determination of VLQ's interaction structure with the SM is then an important issue, which can be inferred from the decay products of VLQs, such as top quark.
• We calculate the spin-analyzing powers for charged leptons from top quark in VLQ decay for various VLQ scenarios.