FIG. 8: (Color online.) Cross-section of the pp → nΔ ++ reaction at T$_{p}$ =0.79 GeV [18, 19]. Inserts (a) and (b) correspond respectively to θ$_{n}$ = 0 ◦ and 7 . 5 $^{◦}$. The differential cross-sections d $^{2}$σ/dE$_{n}$ d Ω$_{n}$ of the $^{2}$H(p,n)X reaction were also measured at LAMPF [18]. The analysis was performed by the same authors [19], using the distorted- wave impulse approximation. The result of the reanalysis is shown in Fig. 9. Here the width of the structures is fixed at the width extracted from the pp → nΔ ++ data ( σ =11 MeV), widen by the Fermi momentum taken to be p$_{F}$ =66 MeV/c. Inserts (a), (b), and (c) show the result of the present reanalysis corresponding respectively to θ = 0 ◦ , 7.5 ◦ , and 15 ◦ . The data are all integrated by two channels. We observe that the present reanalysis allows to describe quite well the data; the total shapes in the range between the n and the Δ missing masses, are better reproduced after introducing the narrow resonances. The large improvement in χ 2 is visible in Table 2. The comparison between pp → nΔ ++ and $^{2}$H(p,n)Δ++ reanalysis, allows us to favor isospin T=1/2 for the exotic narrow baryons at M=1004 MeV, 1044 MeV, and 1094 MeV, just as the baryonic structure at M=1277 MeV, since here the cross-section on D 2 target is much larger than on H target. The same cross-sections are extracted from both targets for the structures at M=1173 MeV and 1210 MeV, suggesting isospin T=3/2 for both of them. These deductions agree with the isospin values deduced previously [4] with the help of a quark cluster mass formula which will be recalled in Section X. FIG. 9: (Color online.) Cross-section of the $^{2}$H(p,n)Δ++ reaction at T$_{p}$ =0.79 GeV [18, 19]. Inserts (a), (b), and (c) correspond respectively to θ$_{n}$ = 0 $^{◦}$, 7.5$^{◦}$, and 15$^{◦}$. 8 B. The $^{2}$H(p,n)X reaction