Radiative p14N Capture to the Third Excited State of the 15O Nucleus at 6.17 MeV

Dubovichenko, S. B.; Burkova, N. А.; Dzhazairov-Kakhramanov, A. V.; Omarov, Ch. Т.

doi:10.1007/s11182-018-1578-0

Cited by 2 publications

(3 citation statements)

References 16 publications

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“…As it can be seen from this table, value of the calculated total S-factor obtained above in stabilization range of its values is noticeably greater than results of these works, which lead to interval 0.03-0.15 keV·b with average over interval 0.09 (6) keV·b.…”

Section: First Option Of Calculationscontrasting

confidence: 53%

“…Previously we considered this option in Ref. 6. This state has total moment J = 3/2 - and can relate either to 2+4 P 3/2 waves or to the 4 F 3/2 wave.…”

Section: Astrophysical S-factor Of the Capture To The Third Esmentioning

confidence: 99%

“…3. The third resonance state (3 rd RS) has an excitation energy of 8.743 (6) MeV or 1446 (6) keV c.m. relative to the threshold, its width is 32 keV in c.m.…”

Section: Structure Of Excited and Resonance States In 15 Omentioning

confidence: 99%

See 2 more Smart Citations

Reaction rate of p14N →15Oγ capture to all bound states in potential cluster model

Dubovichenko

Burkova

Dzhazairov-Kakhramanov

et al. 2020

Int. J. Mod. Phys. E

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Review of calculation results for astrophysical S-factor of the 14 N(р,  15 О capture reaction in the p 14 N channel of 15 O was presented. It was carried out in the frame of the modified potential cluster model, taking into account resonances in the 15 O spectrum up to 3.2 MeV at energy of incident protons varying from 30 keV to 5 MeV. It is possible to describe experimental data for the astrophysical Sfactors of the radiative proton capture on 14 N to five excited states of 15 O at excitation energies from 5.18 MeV to 6.86 MeV, only under assumption, that all five resonances are D scattering waves. Quality new physical interpretation of the capture mechanism is discussed in this channel to the ground state of 15 O. Carried out by us assumption that the ground state of 15 O is determined by the p 14 N * channel with excited 14 N * cluster, immediately allowed us to correctly describe order of values of the experimental S-factor for capture to this state. Taking into account these results, the total S-factor of the proton capture on 14 N and the reaction rates to the ground and five excited states of 15 O were determined at temperatures from 0.01 to 10 T 9 . The parametrization of the total reaction rate with a simple form is performed, which allows to obtain  2 equal to 0.06 with 5% errors of the calculated rate.1. With an excitation energy of 5.183(1) MeV above BS or -2.1141 MeV in c.m. Ref. 26 relative to threshold of the р 14 N channel, there is a first excited, but bound in this channel, state with the moment J  = 1/2 + , which can be matched to the doublet 2 S 1/2 wave with FS. Although such state can, of course, be considered as a quartet 4 D 1/2 wave with FS.2. The second ES (2 nd ES) with an excitation energy of 5.2409(3) MeV Ref. 26 relative to the GS or -2.0562 MeV relative to the threshold of the р 14 N channel has J  = 5/2 + and it can be matched to the mixture of doublet and quartet 2+4 D 5/2 waves with FS.3. The third excited state (3 rd ES) at an excitation energy of 6.1763(17) MeV Ref. 26 relative to the GS or -1.1208 MeV relative to channel threshold has J  = 3/2and it can be compared to a mixture of doublet and quartet 2+4 Р 3/2 -waves without an associated FS.4. The fourth excited state (4 th ES) has an excitation energy of 6.7931(17) MeV relative to the GS or -0.504 MeV Ref. 26 or relative to the channel threshold has J  = 3/2 + and it can be compared with the quartet 4 S 3/2 wave with the FS. Of course, this state may also be a mixture of doublet and quartet 2+4 D 3/2 waves with the FS.5. The fifth excited state (5 th ES) with an excitation energy of 6.8594(9) MeV Ref. 26 relative to the GS or -0.4377 MeV relative to the channel threshold has J  = 5/2 + and it can also be compared to a mixture of doublet and quartet 2+4 D 5/2 wave with the FS 6. There is another bound state in the р 14 N channel with J  = 7/2 + at an excitation energy of 7.2759(6) MeV Ref. 26 relative to the GS or -0.0212 MeV relative to the threshold of the considered channel, which can be compared to the 4 D 7/2 s...

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Section: First Option Of Calculationscontrasting

confidence: 53%

“…Previously we considered this option in Ref. 6. This state has total moment J = 3/2 - and can relate either to 2+4 P 3/2 waves or to the 4 F 3/2 wave.…”

Section: Astrophysical S-factor Of the Capture To The Third Esmentioning

confidence: 99%