Coupling Extraction From Off-Shell Cross-sections

Understand

In this note, we present a novel method of extracting the couplings of a new heavy particle to the Standard Model states.

• Contrary to the usual discovery process which involves studying the on-shell production, we look at regions away from resonance to take advantage of the simple scaling of the cross-section with the couplings.
• We apply the procedure to the case of a heavy quark as an illustration.