In this paper, we present a novel method of extracting the couplings of a 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 illustrate the procedure with the example of a heavy quark.

• Received 7 February 2014

DOI:https://doi.org/10.1103/PhysRevD.90.055019