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\textbf{Background:} The $^{3}$He($\alpha,\gamma$)$^{7}$Be reaction plays a crucial role in the proton-proton chain and Big Bang nucleosynthesis, affecting solar neutrino fluxes and primordial element abundances. Experimental data at…

Nuclear Theory · Physics 2026-03-31 Nguyen Le Anh , Nguyen Gia Huy , Dao Nhut Anh , Do Huy Tho , Hoang Thai An

Nuclear fusion reactions, at energies, far below the Coulomb barrier play a significant role in the synthesis of light elements in the primordial nucleosynthesis as well as in the interior of compact stellar objects. Many different kinds of…

Nuclear Theory · Physics 2022-10-31 Md. A. Khan , S. H. Mondal , M. Alam , M. Hasan

The $^3$He$(\alpha,\gamma)^7$Be radiative capture reaction plays a key role in the creation of elements in stars as well as in the production of solar neutrinos, the observation of which is one of the main tools to study the properties of…

Nuclear Theory · Physics 2024-09-17 M. C. Atkinson , K. Kravvaris , S. Quaglioni , P. Navrátil

The $^3$H(d,n)$^4$He reaction has a large low-energy cross section and will likely be utilized in future commercial fusion reactors. This reaction also takes place during big bang nucleosynthesis. Studies of both scenarios require accurate…

Nuclear Theory · Physics 2019-01-23 Rafael S. de Souza , S. Reece Boston , Alain Coc , Christian Iliadis

We developed a hierarchical Bayesian framework to estimate S-factors and thermonuclear rates for the $^3$He(d,p)$^{4}$He reaction, which impacts the primordial abundances of $^3$He and $^7$Li. The available data are evaluated and all direct…

Instrumentation and Methods for Astrophysics · Physics 2019-02-19 Rafael S. de Souza , Christian Iliadis , Alain Coc

We present here a robust analytical model based on nuclear reaction theory for non-resonant fusion cross sections near Coulomb barrier. The astrophysical $S$-factors involving stable and neutron rich isotopes of C, O, Ne, Mg and Si for…

Nuclear Theory · Physics 2019-06-05 Vinay Singh , Joydev Lahiri , D. N. Basu

The cross sections for the deep sub-barrier fusion reaction of light nuclei are calculated within the theoretical framework of the selective resonant tunneling model. In this model, assumption of a complex square-well nuclear potential is…

Nuclear Theory · Physics 2019-05-01 Vinay Singh , Debasis Atta , Md. A. Khan , D. N. Basu

Nuclear fusion reactions are the most important processes in nature to power stars and produce new elements, and lie at the center of the understanding of nucleosynthesis in the universe. It is critically important to study the reactions in…

Using a transport model coupled with a phase-space coalescence after-burner we study the triton-$^3$He ratio, relative and differential transverse flows in semi-central $^{132}Sn+^{124}Sn$ reactions at a beam energy of 400 MeV/A. The…

Nuclear Theory · Physics 2009-10-29 Gao-Chan Yong , Bao-An Li , Lie-Wen Chen , Xun-Chao Zhang

Fusion cross sections of light nuclei are calculated by a complex potential and taking into account of conservation of angular momentum and parity. The nuclear potential is assumed to be as simple as a spherical complex square well with a…

Nuclear Theory · Physics 2018-10-16 T. Koohrokhi , A. M. Izadpanah , S. K. Hosseini

The study aims to explore the mechanism of heavy-ion fusion using various effective nucleon-nucleon (NN) interactions and nuclear density distributions. The nuclear potentials are obtained by folding the relativistic effective NN…

Nuclear Theory · Physics 2025-05-14 Shilpa Rana , Raj Kumar , M. Bhuyan

We discuss microscopic cluster model descriptions of two solar nuclear reactions, Be7(p,gamma)B8 and He3(He3,2p)He4. The low-energy reaction cross section of Be7(p,gamma)B8, which determines the high-energy solar neutrino flux, is…

Nuclear Theory · Physics 2007-05-23 Attila Csoto

The cross sections of the $^3$He($\alpha$,$\alpha$)$^3$He and $^3$He($\alpha$,$\gamma$)$^7$Be reactions are studied at low energies using a simple two-body model in combination with a double-folding potential. At very low energies the…

Nuclear Theory · Physics 2009-07-09 P. Mohr

The $^{12}$C+$^{12}$C fusion reaction plays a significant role in the later phases of stellar evolution. For a better understanding of the evolution involved, one must understand the corresponding fusion-fission dynamics and reaction…

Nuclear Theory · Physics 2021-08-30 Shilpa Rana , Raj Kumar , M. Bhuyan

Within the newly updated version of the Ultra-relativistic quantum molecular dynamics (UrQMD) model in which the Skyrme potential energy-density functional is introduced, the yield ratio between $^3$H and $^3$He clusters emitted from…

Nuclear Theory · Physics 2015-03-27 Yongjia Wang , Chenchen Guo , Qingfeng Li , Hongfei Zhang

The problem of estimating non-resonant astrophysical S-factors and thermonuclear reaction rates, based on measured nuclear cross sections, is of major interest for nuclear energy generation, neutrino physics, and element synthesis. Many…

Solar and Stellar Astrophysics · Physics 2016-11-09 Christian Iliadis , Kevin Anderson , Alain Coc , Frank Timmes , Sumner Starrfield

We determine cross sections and astrophysical S-factors of the reactions generated in collisions between $^{6}$Li and $^{3}$H, and $^{6}$Li and $^{3}$He. A microscopic three-cluster model is employed to study the dynamics of reactions…

Nuclear Theory · Physics 2024-05-16 Yu. A. Lashko , V. S. Vasilevsky , V. I. Zhaba

Numerous nuclear reactions in the crust of accreting neutron stars are strongly affected by dense plasma environment. Simulations of superbursts, deep crustal heating and other nuclear burning phenomena in neutron stars require…

Solar and Stellar Astrophysics · Physics 2015-06-04 A. V. Afanasjev , M. Beard , A. I. Chugunov , M. Wiescher , D. G. Yakovlev

The astrophysical $S$-factor for the radiative capture $d(p,\gamma)^3$He in the energy-range of interest for Big Bang Nucleosynthesis (BBN) is calculated using an {\it ab-initio} approach. The nuclear Hamiltonian retains both two- and…

Nuclear Theory · Physics 2016-03-23 L. E. Marcucci , G. Mangano , A. Kievsky , M. Viviani

We propose a physically transparent analytic model of astrophysical S-factors as a function of a center-of-mass energy E of colliding nuclei (below and above the Coulomb barrier) for non-resonant fusion reactions. For any given reaction,…

High Energy Astrophysical Phenomena · Physics 2010-10-27 D. G. Yakovlev , M. Beard , L. R. Gasques , M. Wiescher
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