Thermonuclear processes for three body system in the potential cluster model

Dubovichenko, S. B.; Dzhazairov-Kakhramanov, A. V.

doi:10.1016/j.nuclphysa.2015.07.009

Cited by 41 publications

(109 citation statements)

References 87 publications

(208 reference statements)

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“…As we usually assume [16,19], the bound state (BS) of 17 F is caused by the cluster channel of the initial particles, which take part in the reaction.…”

Section: Introductionmentioning

confidence: 99%

New measurements and phase shift analysis of p ¹⁶ O elastic scattering at astrophysical energies

Dubovichenko¹,

Burtebayev²,

Dzhazairov-Kakhramanov³

et al. 2017

Chinese Phys. C

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“…As we usually assume [16,19], the bound state (BS) of 17 F is caused by the cluster channel of the initial particles, which take part in the reaction.…”

Section: Introductionmentioning

confidence: 99%

New measurements and phase shift analysis of p ¹⁶ O elastic scattering at astrophysical energies

Dubovichenko¹,

Burtebayev²,

Dzhazairov-Kakhramanov³

et al. 2017

Chinese Phys. C

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“…However, the great ambiguities in the study of this reaction by different methods make it interesting as a subject for study. Therefore we will consider the neutron capture on 8 Li reaction in the frame of the modified potential cluster model (MPCM), 25,26 and will define how the criteria of this model can properly describe the total cross sections for the neutron capture on 8 Li at thermal and astrophysical energies, namely from 25.3 meV to 1.0 MeV.Some other calculation results of the total cross section of this reaction, based on different models and methods, which describe existing experimental data, 22 have been detailed elsewhere. 1,22 We could only find 27 experimental data of Ref.…”

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confidence: 99%

“…In many cases, such an approach, as has been shown previously, allows one to obtain adequate results in the description of many experimental studies for the total cross sections of the thermonuclear reactions at low and astrophysical energies. 31,36,37 Therefore, in continuing to study the processes of radiative capture, 31,37 we will consider the n+ 8 Li 9 Li+, p 9 Be  10 B, n 10 Be  11 Be, p 10 B  11 C, p 16 O  17 F reactions within the framework of the MPCM at thermal and astrophysical energies. The resonance behavior of the elastic scattering phase shifts of the interacting particles at low energies will be taken into account.…”

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confidence: 99%

“…58 or Refs. 31,37,63,64 are written as:where  -total radiative capture cross section;  -reduced mass of initial channel particles; q -wave number in initial channel; S 1 , S 2 -spins of particles in initial channel; K, J -wave number and momentum of -quantum in final channel; N -is the Е or М transitions of the J multipole ordered from the initial J i to the final J f nucleus state.The value Р J for electric orbital ЕJ(L) transitions has the form 31,37Here, S i , S f , L f , L i , J f , and J i -total spins, angular and total moments in initial (i) and final (f) channels; m 1 , m 2 , Z 1 , Z 2 -masses and charges of the particles in initial channel; I J -integral over WFs of initial  i and final  f states, as functions of cluster relative motion of n and 10 B particles with intercluster distance R. For consideration of the М1(S) magnetic transition, caused by the spin part of magnetic operator, 65 it is possible to obtain an expression 31,37 using the following: …”

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confidence: 99%

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confidence: 99%

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Study of the nucleon radiative captures 8Li(n,γ)9Li, 9Be(p,γ)10B, 10Be(n,γ)11Be, 10B(p,γ)11C, and 16O(p,γ)17F at thermal and astrophysical energies

Dubovichenko

Dzhazairov-Kakhramanov

2017

Int. J. Mod. Phys. E

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Abstract:We have studied the neutron-capture reactions 8 Li(n,) 9 Li and its role in the primordial nucleosynthesis. The n+ 8 Li 9 Li+ reaction has a significant astrophysical interest, because it includes into one of the variants of chain of primordial nucleosynthesis processes of the Universe and thermonuclear reactions in type II supernovae. Furthermore, we consider the 9 Be(p,) 10 B reaction in the astrophysical energy range in the modified potential cluster model with splitting of orbital states according to Young tableaux and, in some cases, with forbidden states. The reaction 9 Be(p,) 10 B plays an important role in primordial and stellar nucleosynthesis of light elements in the p shell. Hydrogen burning in secondgeneration stars occurs via the proton-proton (pp) chain and CNO cycle, with the 9 Be(p,) 10 B reaction serving as an intermediate link between these cycles. Furthermore, the possibility of describing available experimental data for the total reaction cross sections of neutron radiative capture on 10 Be at thermal and astrophysical energies has been shown. This reaction is a part of one of the variants of the chain of primordial nucleosynthesis of the Universe due to which the elements with a mass of A > 11-12 may be formed. The results in the field of study of thermonuclear proton capture reaction on 10 B at ultralow, i.e., astrophysical energies will be presented further. The possibility of description of the experimental data for the astrophysical S-factor of the proton radiative capture on 16 O to the ground state of Keywords: Nuclear astrophysics; primordial nucleosynthesis; light atomic nuclei; low and astrophysical energies; radiative capture; total cross section; thermonuclear processes; potential cluster model; forbidden states. 21.60.Gx, 25.20.Lj, 25.40.Lw, 26.20.Np, 26.35.+c, 26.50.+x, 26.90.+n PACS Number(s): IntroductionThis review is the logical continuation of our works devoted to the radiative proton and neutron capture on light nuclei that were published in Int. J. Mod. Phys. E 21, 1250039 (2012); 22, 1350028 (2013); 22, 1350075 (2013); 23, 1430012 (2014). Astrophysical aspects of the reviewAs we know, light radioactive nuclei play an important role in many astrophysical environments. In addition, such parameter as cross section of the capture reactions as 2 a function of energy and reaction rates are very important for investigation of many astrophysical problems such as primordial nucleosynthesis of the Universe, main trends of stellar evolution, novae and super-novae explosions, X-ray bursts etc. The continued interest in the study of processes of radiative neutron capture on light nuclei at thermal (> 10 meV) and astrophysical (> 1 keV) energies is caused by several reasons. Firstly, this process plays a significant part in the study of many fundamental properties of nuclear reactions, and secondly, the data on the capture cross sections are widely used in a various applications of nuclear physics and nuclear astrophysics, for example, in the process of studying of...

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Radiative 3He(2H,γ)5Li Capture at Astrophysical Energy and Its Possible Role in Accumulation of 6Li at the BBN

Dubovichenko

Burkova

Dzhazairov-Kakhramanov

et al. 2020

Recent Progress in Few-Body Physics

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Big Bang Nucleosynthesis (BBN) relevance reactions 3 He( 2 H,γ) 5 Li, 3 H( 3 He,γ) 6 Li, 5 Li(n,γ) 6 Li as a key to approach for scenario of 6 Li formation are treated. The rates of reaction for these processes are analyzed. Comparison of the reactions rates and the prevalence of light elements leads to the assumption that the two-step process 2 H + 3 He  5 Li +  and n + 5 Li  6 Li +  can make a significant contribution to the formation of 6 Li at the BBN at least at temperatures T 9 of the order of unity.Calculations of the total cross sections, astrophysical S-factor, and reaction rates have been performed for 3 He( 2 H,γ) 5 Li radiative capture within the modified potential cluster model with forbidden states, which follow from the classification of the orbital cluster states according to Young diagrams. Numerical data and corresponding parametrizations cover the energy range up to 5 MeV and temperature range T 9 <10. An updated compilation of detailed data for the reaction 3 He( 2 H,γ) 5 Li are presented.Let us now examine in more detail the various aspects of the 3 He( 2 H, γ) 5 Li reaction, including the experimental data presented in the data base (EXFOR, 2013) and the original references cited therein, and the role of this process in various fields of application. Nuclear astrophysics aspectsOur parametrization of the experimental data for 2 H capture in 3 He (Buss et al. 1968) for the Sfactor at energies from 0.2 to 1.0 MeV according to Breit-Wigner and its further extrapolation 8 ) , ( J J I J J NJ P K NJ A J J J J J J J J

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Thermonuclear processes for three body system in the potential cluster model

Cited by 41 publications

References 87 publications

New measurements and phase shift analysis of p ¹⁶ O elastic scattering at astrophysical energies

New measurements and phase shift analysis of p ¹⁶ O elastic scattering at astrophysical energies

Study of the nucleon radiative captures 8Li(n,γ)9Li, 9Be(p,γ)10B, 10Be(n,γ)11Be, 10B(p,γ)11C, and 16O(p,γ)17F at thermal and astrophysical energies

Radiative 3He(2H,γ)5Li Capture at Astrophysical Energy and Its Possible Role in Accumulation of 6Li at the BBN

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Thermonuclear processes for three body system in the potential cluster model

Cited by 41 publications

References 87 publications

New measurements and phase shift analysis of p 16 O elastic scattering at astrophysical energies

New measurements and phase shift analysis of p 16 O elastic scattering at astrophysical energies

Study of the nucleon radiative captures 8Li(n,γ)9Li, 9Be(p,γ)10B, 10Be(n,γ)11Be, 10B(p,γ)11C, and 16O(p,γ)17F at thermal and astrophysical energies

Radiative 3He(2H,γ)5Li Capture at Astrophysical Energy and Its Possible Role in Accumulation of 6Li at the BBN

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New measurements and phase shift analysis of p ¹⁶ O elastic scattering at astrophysical energies

New measurements and phase shift analysis of p ¹⁶ O elastic scattering at astrophysical energies