The first identification of the proton halo in the excited state of 13N

Abstract

We demonstrate that the radii of excited nuclear states can be estimated using the (³He, t) charge-exchange reaction and relying on the modified diffraction model.The radius of the 13 N excited state with an excitation energy of E*=2.37 MeV,which lies in a continuous spectrum, is determined. The radius of this state proves to be close to that of the mirror 3.09-MeV state of the 13 C nucleus, which possesses a neutron halo but lies in a discrete spectrum. Thereby, we demon- strate that the 2.37-MeV state of the 13 N nucleus has a proton halo. The analysis is based on published measurements of differential cross sections for relevant reactions.

Recommended Citation

Demyanova, A. S.; Ogloblin, A. A.; Danilov, A. N.; Belyaeva, T. L.; Goncharov, S. A.; and Trzaska, W. (2017) "The first identification of the proton halo in the excited state of 13N," Eurasian Journal of Physics and Functional Materials: Vol. 1: No. 1, Article 6.
DOI: https://doi.org/10.29317/ejpfm.2017010106