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THE FIRST IDENTIFICATION OF THE PROTON HALO IN THE EXCITED STATE OF 13N

Number 1_Vol.1

AUTHORS: A. S. Demyanova, A.A. Ogloblin, A.N. Danilov, T.L. Belyaeva, S.A.Goncharov, W.Trzaska

DOI: 10.29317/ejpfm.2017010106

PAGES: 35 - 40

DATE: 2017-11-10


ABSTRACT

We demonstrate that the radii of excited nuclear states can be estimated using the (3He,t) charge-exchange reaction and relying on the modiļ¬ed diffraction model.The radius of the 13N 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 13C 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.


KEYWORDS

Inelastic scattering, dilute excited states, MDM model; radii of excited states.


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