Intro

The Carver and Richards 1972 relaxation dispersion model extended for by Korzhnev, et al., 2004. This is labelled as MMQ CR72 in relax.

Parameters

The MMQ CR72 model has the parameters {$R_2^0$, $...$, $p_A$, $\Delta\omega$, $\Delta\omega^H$, $k_{ex}$}.

The references for the MMQ CR72 model are:

Korzhnev, D. M., Kloiber, K., Kanelis, V., Tugarinov, V., and Kay, L. E. (2004a). Probing slow dynamics in high molecular weight proteins by methyl-TROSY NMR spectroscopy: application to a 723-residue enzyme. J. Am. Chem. Soc., 126(12), 3964-3973. (10.1021/ja039587i).
Carver, J. and Richards, R. (1972). General 2-site solution for chemical exchange produced dependence of T2 upon Carr-Purcell pulse separation. J. Magn. Reson., 6(1), 89-105. (10.1016/0022-2364(72)90090-X).