par Sparenberg, Jean-Marc
;Capel, Pierre
;Baye, Daniel Jean 
Référence Journal of physics. Conference series (Online), 312, 082040
Publication Publié, 2011
;Capel, Pierre
;Baye, Daniel Jean 
Référence Journal of physics. Conference series (Online), 312, 082040
Publication Publié, 2011
Article révisé par les pairs
| Résumé : | Possibilities of deducing the asymptotic normalisation constant C b of the 21+ subthreshold bound state of 16O from the low-energy 12C+α d-wave scattering phase shifts are studied. Within the potential model, it is shown that such a connection exists in principle, either by studying the range of potentials fitting the phase shifts, or by using the effective range expansion. However, present-day data do not seem sufficient to strongly constrain Cb, as values ranging from 20 to 180 × 103 fm-1/2 are obtained, depending on the order of the chosen effective-range expansion. |



