FIG. 13: (Color online) Systematics of the moment ratios m 1 /m 0 for the ISGMR strength distribu- tions in the Sn isotopes. The experimental results (filled squares) are compared with results from non-relativistic RPA calculations (without pairing) by Col` o et al. [65, 66] (filled circles); relativistic calculations of Piekarewicz [67] (triangles); RMF calculations from Vretenar et al. [68] (diamonds); and, QTBA calculations from the J¨ ulich group [69] (sideways triangles). Results for $^{112}$Sn, $^{116}$Sn and $^{124}$Sn reported by the TAMU group [19, 21] are also shown (inverted triangles). K$_{τ}$ = − 550 ± 100 MeV (see Fig. 4 in Ref. [34]). This number is consistent with the value of K$_{τ}$ = − 370 ± 120 MeV obtained from an analysis of the isotopic transport ratios in medium- energy heavy-ion reactions [87]. Incidentally, this value has been modified from the value of − 500 ± 50 MeV that was quoted previously by this group [88, 89] and referred to in Ref. [34]. It transpires that they had identified the quantity that they had obtained, K$_{asy}$ , as being identical to K$_{τ}$ , the quantity that has been obtained from the ISGMR measurements; the two differ by a higher-order term [87, 90]. More recently, a value of K$_{τ}$ = − 500 +125 − 100 MeV has been obtained by Centelles et al. [91] from constraints put by neutron-skin data from anti-protonic atoms across the mass table; here again, it would appear that what the authors have termed K$_{τ}$ is actually the aforementioned K$_{asy}$ . Further, a value of K$_{τ}$ = − 500 ± 50 MeV has been obtained also by Sagawa et al. by comparing our Sn ISGMR data with calculations using different Skyrme Hamiltonians and RMF Lagrangians [92]. The K$_{τ}$ value obtained from our ISGMR measurements has, thus, been verified by a number of different procedures involving quite different data. A more precise determination of K$_{τ}$ will likely result from extending 23 112 114 116 118 120 122 124 A 14 15 16 17 m /m(MeV) This work Colo Piekarewicz Texas A & M Vretenar Julich T5 1 0 .. `