The parameters are from Table 2 for DGdm+ in D2O. The upper row is for XXXX and the lower row for XXYY polarization.
1a and 1b: T=0, spectral diffusion incorporated, no population exchange or 2π / 3 flips.
2a and 2b: T=2 ps, otherwise as in 1a and 1b.
3a and 3b: T=2 ps, spectral diffusion and population exchange incorporated, no 2π / 3 flips.
4a and 4b: T=2 ps, spectral diffusion and 2π / 3 flips incorporated, but no population exchange.