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Related papers: Radiative proton capture on $^{15}\mathrm{N}$ with…

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An effective field theory (EFT) for a nuclear reaction at low energies is studied. The astrophysical $S$-factor of radiative $\alpha$ capture on $^{12}$C at the Gamow-peak energy, $T_G=0.3$ MeV, is a fundamental quantity in…

Nuclear Theory · Physics 2024-01-24 Shung-Ichi Ando

Review of calculation results for astrophysical S-factor of the 14N(p,gamma)15O capture reaction in the p14N channel of 15O was presented. It was carried out in the frame of the modified potential cluster model, taking into account…

The possibility of description of the experimental data for the astrophysical S-factor of the radiative proton capture on 15N at the energies from 50 to 1500 keV was considered in the framework of the modified potential cluster model with…

Nuclear Theory · Physics 2015-07-15 S. B. Dubovichenko , N. Burtebaev , A. V. Dzhazairov-Kakhramanov , D. K. Alimov

The CNO cycle is the main source of energy in stars more massive than our Sun. It defines the energy production and the duration contributes in determining the lifetime of massive stars. The cycle is an important tool for the determination…

Solar and Stellar Astrophysics · Physics 2024-11-05 B. F. Irgaziev , Abdul Kabir , Jameel-Un Nabi

The reaction $^{17}$O$(p,\gamma)^{18}$F influences hydrogen-burning nucleosynthesis in several stellar sites, such as red giants, asymptotic giant branch (AGB) stars, massive stars and classical novae. In the relevant temperature range for…

The possibility of description of the experimental data for the astrophysical S-factor of the proton radiative capture on 16O to the ground and first excited states of 17F was considered in the frame of the modified potential cluster model…

Nuclear Theory · Physics 2018-11-12 Sergey Dubovichenko , Albert Dzhazairov-Kakhramanov

We study a radiative $p^{15}$N capture on the ground state of $^{16}$O at stellar energies within the framework of a modified potential cluster model (MPCM) with forbidden states, including low-lying resonances. The investigation of the…

The $^{14}\textrm{N(p,}\gamma\textrm{)}^{15}\textrm{O}$ reaction is the slowest reaction of the carbon-nitrogen cycle of hydrogen burning and thus determines its rate. The precise knowledge of its rate is required to correctly model…

We have studied the neutron-capture reactions 10,11B(n, g) and the role of the 11B(n, g) reaction in seeding r-process nucleosynthesis. The possibility of the description of the available experimental data for cross sections of the neutron…

Nuclear Theory · Physics 2014-08-04 Sergey Dubovichenko , Albert Dzhazairov-Kakhramanov

The astrophysical direct nuclear capture reaction $^{12}{\rm C}(p, \gamma)^{13}{\rm N}$ is studied within the framework of a potential model. Parameters of the nuclear $p-^{12}$C interaction potentials of the Woods-Saxon form are adjusted…

Nuclear Theory · Physics 2025-05-13 E. M. Tursunov , S. A. Turakulov , A. S. Kadyrov

The phase shift analysis for position location of the 2S1/2 resonance at 1,5 MeV was carried out on the basis of the known experimental measurements. Also, the possibility to describe the available experimental data on the astrophysical…

Nuclear Theory · Physics 2014-07-30 S. B. Dubovichenko , N. Burtebaev , A. V. Dzhazairov-Kakhramanov , D. K. Alimov

The $S_{E1}$ factor of radiative $\alpha$ capture on $^{12}$C is studied in effective field theory. We briefly discuss the strategy for the calculation of the reaction and report a first result of $S_{E1}$ at the Gamow-peak energy,…

Nuclear Theory · Physics 2020-09-16 Shung-Ichi Ando

We use halo effective field theory to analyze the universal features of proton halo nuclei bound due to a large S-wave scattering length. With a Lagrangian built from effective core and valence-proton fields, we derive a leading-order…

Nuclear Theory · Physics 2014-02-05 Emil Ryberg , Christian Forssén , H. -W. Hammer , Lucas Platter

Astrophysical S-factors of radiative capture reactions on light nuclei have been calculated in a two-cluster potential model, taking into account the separation of orbital states by the use of Young schemes. The local two-body potentials…

Nuclear Theory · Physics 2012-04-12 Sergey Dubovichenko , Albert Dzhazairov-Kakhramanov

The 10B(p,{\gamma})11C reaction is of significant interest in nuclear astrophysics and in the field of controlled thermonuclear fusion. This reaction is one of the reactions of 11B production, which is carried out through the…

Nuclear Theory · Physics 2024-02-12 S. B. Dubovichenko , N. A. Burkova , A. S. Tkachenko , D. M. Zazulin

Calculations of the reaction rate of the proton radiative capture on 3H at temperatures from 0.01 T9 up to 5 T9, which are based on the theoretical results for the astrophysical S-factor and take into account the latest experimental data,…

Nuclear Theory · Physics 2017-07-19 S. B. Dubovichenko , A. V. Dzhazairov-Kakhramanov , N. V. Afanasyeva

The astrophysical S-factor for proton-proton weak capture is calculated in chiral effective field theory over the center-of-mass relative-energy range 0--100 keV. The chiral two-nucleon potential derived up to next-to-next-to-next-to…

Nuclear Theory · Physics 2013-05-14 L. E. Marcucci , R. Schiavilla , M. Viviani

The $^{13}$C($\alpha$,$n$)$^{16}$O reaction at low energies is studied by constructing an effective field theory. We choose a separation scale at $E=1$~MeV, where $E$ is the initial $\alpha$-$^{13}$C energy in center-of-mass frame, just…

Nuclear Theory · Physics 2026-03-02 Shung-Ichi Ando

Radiative capture of nucleons at energies of astrophysical interest is one of the most important processes for nucleosynthesis. The nucleon capture can occur either by a compound nucleus reaction or by a direct process. The compound…

Nuclear Theory · Physics 2015-05-13 J. T. Huang , C. A. Bertulani , V. Guimaraes

In this review we have considered the possibility to describe the astrophysical S-factors of radiative capture reactions with light atomic nuclei on the basis of the potential two-cluster model by taking into account the splitting the…

Nuclear Theory · Physics 2011-12-12 S. B. Dubovichenko , A. V. Dzhazairov-Kakhramanov
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