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

Authors

A. S. Demyanova, National Research Center “Kurchatov Institute” ,Russian Federation
A. A. Ogloblin, National Research Center “Kurchatov Institute” ,Russian Federation
A. N. Danilov, National Research Center “Kurchatov Institute” ,Russian Federation
T. L. Belyaeva, Universidad Autonoma del Estado de Mexico ,Mexico
S. A. Goncharov, Lomonosov Moscow State University ,Russian Federation
W. Trzaska, University of Jyvaskyla ,Finland ,

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.

Article Type

Original Study

First Page

35

Last Page

40

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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