Differential cross section and analyzing powers for the reaction in the Δ-resonance region

Simultaneous measurements of the reactions

“…The cross sections from Källne et al [25] for the forward angles are smaller than the present ones. For the neutral exit channel there is a striking agreement between the present data and those of Cameron et al [9], but the data from Carroll et al [28] differ. The data from Rössle at al.…”

“…10, respectively, together with the results from Ref. 's [6,11,7,9]. Only the data from Kerboul et al [6] are direct measurements; all other data are obtained by us by extrapolation of fitted Legendre polynomials.…”

“…All previous results for R are larger than 2. The two reactions were also measured almost over the full angular range by the same group with the same apparatus at 500 MeV, however at different time [18,9]. We found from these measurements an integral ratio R = 1.82 ± 0.18.…”

“…[10] are for the related nd → tπ 0 reaction. They [25][26][27] for the 3 H π + reaction (left part) and from [10,9,28] for the 3 He π 0 reaction (right part). 12 have extremely large error bars.…”

“…The influence of the missing data was studied by truncating the corresponding triton angular distribution and the 3 He distribution from Ref. [9] suggesting a systematic uncertainty of 10%. The total cross sections for both reactions are compiled in Table 1 with the first error the statistical error and the second error the systematical one as discussed.…”