Proton halo in the 13N nucleus |
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| Authors: | A. S. Demyanova A. A. Ogloblin A. N. Danilov T. L. Belyaeva S. A. Goncharov W. Trzaska |
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| Affiliation: | 1.National Research Center Kurchatov Institute,Moscow,Russia;2.Universidad Autonoma del Estado de Mexico,Toluca,Mexico;3.Moscow State University,Moscow,Russia;4.JYFL, Department of Physics,University of Jyv?skyl?,Jyv?skyl?,Finland |
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| 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 N excited state with an excitation energy of E*=2.73 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 13С nucleus, which possesses a neutron halo but lies in a discrete spectrum. Thereby, we demonstrate that the 2.37-MeV state of the 13N nucleus has a proton halo. The analysis is based on published measurements of differential cross sections for relevant reactions. |
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