On the basis of the modified potential two-cluster model with forbidden state which effectively take the Pauli principle into account, calculations have been performed of the astrophysical S-factor of radiative p14N capture to the ground state of the 15O nucleus at proton energies up to 5 MeV in the center-of-mass system (c.m.s.) with allowance for wide resonances up to 3.4 MeV in the c.m.s. For an acceptable explanation of the available experimental data it is necessary to allow the existence of the 14N cluster in the excited state 14N* at an excitation energy of 5.69 MeV and angular momentum Jπ = 1–. It is assumed that in such a case it is possible to use the wave function of the 4D1/2 state with respect to the relative motion of the p14N* clusters. It is also shown that a description of the S-factor of p14N capture in the resonance region is possible only under the assumption that all of the low-lying resonances at 260(1/2+), 987(3/2+), 1447(1/2+), 2187(3/2+), and 3211(3/2+) keV in the c.m.s. are 4D1/2 and 4D3/2 scattering waves.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 11, pp. 142–148, November, 2018.
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Dubovichenko, S.B., Burkova, N.A. Does the Excited Cluster 14N* Exist in the 15O Nucleus?. Russ Phys J 61, 2105–2112 (2019). https://doi.org/10.1007/s11182-019-01643-w
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DOI: https://doi.org/10.1007/s11182-019-01643-w