How unique is the asymptotic normalization coefficient method? art. no. 064616

The asymptotic normalization coefficients (ANC's) for the vertex B-10-->Be- 9+p are deduced from a set of different proton transfer reactions at differ ent energies. This set should ensure the peripheral character of the reacti on and availability of the data for the elastic channels. The problems asso ciated with the characteristics of the data and the analysis are discussed. For a subgroup of the set of available data, the uniqueness property of th e extracted ANC's is fulfilled. However, more measurements are needed befor e a definite conclusion can be drawn.