The first identification of the proton halo in the excited state of13N
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.
About the Authors
A. S. Demyanova
National Research Center “Kurchatov Institute”
Russian Federation
Russian Federation
A. A. Ogloblin
National Research Center “Kurchatov Institute”
Russian Federation
Russian Federation
A. N. Danilov
National Research Center “Kurchatov Institute”
Russian Federation
Russian Federation
T. L. Belyaeva
Universidad Autonoma del Estado de Mexico
Mexico
Mexico
S. A. Goncharov
Lomonosov Moscow State University
Russian Federation
Russian Federation
W. .. Trzaska
University of Jyvaskyla
Finland
Finland
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Review
For citations:
Demyanova A.S., Ogloblin A.A., Danilov A.N., Belyaeva T.L., Goncharov S.A., Trzaska W... The first identification of the proton halo in the excited state of13N. Eurasian Journal of Physics and Functional Materials. 2017;1(1):35-40. https://doi.org/10.29317/ejpfm.2017010106
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