Table 1.

Results of the fits to equation (2.1). We see that α is a metric of the ‘stiffness’ of the tails on nanoscale distances; ω₀ can be related to the order in the bilayer. Results are compared to Armstrong et al. [42] for DMPC membranes containing 40 mol% cholesterol. Parameters for the CHOL and ASA samples are also plotted in figure 3.

	α (meV/$q_{\parallel }^2$)			$\hslash {\omega }_0$ (meV)
dispersion	Armstrong et al. (40 mol% CHOL)	cholesterol 30 mol%	ASA 10 mol%	Armstrong et al. (40 mol% CHOL)	cholesterol 30 mol%	ASA 10 mol%
gel	30.3	41 ± 9	51.5 ± 28	1.80	0.72 ± 0.70	0.65 ± 1.49
fluid	10.7	14.9 ± 3	11.0 ± 4	2.63	1.09 ± 0.28	1.12 ± 0.51
lo	6.6	4.8 ± 0.3	3.7 ± 0.9	1.09	0.51 ± 0.02	0.66 ± 0.07