F IG. 4: (a) The relative strength D PW 2 π , (b) $^{2}$a$_{nd}$ and (c) B ( $^{4}$He) as functions of A PW 2 π , for the A V18+URIX model. -0.05 -0.04 -0.03 -0.02 A$_{2}$  PW  [MeV] 0.5 1 1.5 D 2  PW -0.05 -0.04 -0.03 -0.02 A$_{2}$  PW  [MeV] 0.5 0.55 0.6 0.65 0.7 2 a nd  [fm] -0.05 -0.04 -0.03 -0.02 A$_{2}$ PW  [MeV] 28.2 28.3 28.4 28.5 28.6 B( 4 He) (a) (b) (c) URIX AV18+URIX AV18+URIX 1 1.2 1.4 1.6 c$_{0}$ -2 -1 0 1 2 3 4 5 1 1.2 1.4 1.6 c$_{0}$ 0.6 0.62 0.64 0.66 0.68 0.7 2 a nd [fm] 1 1.2 1.4 1.6 c$_{0}$ 28 28.2 28.4 28.6 28.8 29 B( $_{4}$He)[MeV] c$_{D}$ c$_{E}$ (a) (b) (c) F IG. 5: (a) The c$_{D}$ and c$_{E}$ parameters, (b) $^{2}$a$_{nd}$ and (c) B ( $^{4}$He), as functions of c$_{0}$ , for the A V18+N2LOL model. 25