Abstract
Differential cross-sections of the elastic and inelastic 13 C + α scattering were measured at E(α ) = 90 MeV. The root mean-square radii( >) of 13 C nucleus in the states: 8.86 (1/2− ), 3.09 (1/2+ ) and 9.90 (3/2− ) MeV were determined by the Modified diffraction model (MDM). The radii of the first two levels are enhanced compared to that of the ground state of 13 C, confirming the suggestion that the 8.86 MeV state is an analogue of the Hoyle state in 12 C and the 3.09 MeV state has a neutron halo. Some indications to the abnormally small size of the 9.90 MeV state were obtained.
Highlights
During recent years evidence of the existence of nuclear excited states with abnormally large radii was obtained
Differential cross sections of the elastic and inelastic 13C + α scattering were measured at the Jyvaskyla University cyclotron, Finland
The observed shift of the extremes of the inelastic scattering cross section to smaller angles indicates the enhancement of the radius for the 3.09 MeV state in comparison with the ground state one
Summary
During recent years evidence of the existence of nuclear excited states with abnormally large radii was obtained. V : Figure 1: Differential cross sections of the 13C + α elastic scattering and inelastic one leading to the 3.09 MeV state in 13C at E(α) = 90 MeV. Inelastic scattering 13C (α, α ) at E(α) = 65 MeV [1] we observed three excited states whose radii differed from that of the ground state: 3.09 MeV (1/2+), 8.86 MeV (1/2−) and 9.90 MeV (3/2−).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
