**Table 2:** Main parameters used for the globular clusters (from Carretta et al. 2004; Gratton et al. 2001).
Cluster ID	Type^a	$T_{\rm eff}$ (K)	$\log g$	$\xi$ (km s^-1)
NGC 104 / 47 Tuc	SG	5134	3.65	0.90
	TO	5832	4.05	1.07
NGC 6752	SG	5347	3.54	1.10
	TO	6226	4.28	0.70
NGC 6397	SG	5478	3.42	1.32
	TO	6476	4.10	1.32

^a SG = subgiants, TO = turnoff stars.

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