Ab Initio Prediction of the Big Bang Radiative Capture

C Hebborn, G Hupin, K Kravvaris, S Quaglioni… - Physical Review Letters, 2022 - APS
The rate at which helium (He 4) and deuterium (d) fuse together to produce lithium-6 (Li 6)
and a γ ray, He 4 (d, γ) Li 6, is a critical puzzle piece in resolving the discrepancy between …

Microscopic description of the radiative capture reaction

AS Solovyev - Physical Review C, 2022 - APS
The H (α, γ) 2 Li 6 radiative capture responsible for the Li 6 production during the big-bang
nucleosynthesis is comprehensively studied within a microscopic approach. The approach …

Isospin-forbidden electric dipole capture and the α (d, γ) 6Li reaction

D Baye, EM Tursunov - Journal of Physics G: Nuclear and …, 2018 - iopscience.iop.org
At the long-wavelength approximation, E1 transitions are forbidden between isospin-zero
states. Hence E1 radiative capture is strongly hindered in reactions involving N= Z nuclei but …

Theoretical study of the astrophysical capture process in a three-body model. II. Reaction rates and primordial abundance

EM Tursunov, SA Turakulov, AS Kadyrov, I Bray - Physical Review C, 2018 - APS
The astrophysical S factor and reaction rate of the direct capture process α+ d→ Li 6+ γ, as
well as the abundance of the Li 6 element, are estimated in a three-body model. The initial …

[HTML][HTML] Analysis of the 3He (α, γ) 7Be and 3H (α, γ) 7Li astrophysical direct capture reactions in a modified potential-model approach

EM Tursunov, SA Turakulov, AS Kadyrov - Nuclear Physics A, 2021 - Elsevier
Astrophysical S factors and reaction rates of the direct radiative capture processes He 3 (α,
γ) 7 Be and H 3 (α, γ) 7 Li, as well as the primordial abundance of the Li 7 element, are …

Reaction rate calculation of d (α, γ) 6Li process at low energy in framework of effective field theory

S Nahidinezhad, H Sadeghi, M Khoddam - New Astronomy, 2021 - Elsevier
Reaction rate of the process d (α, γ) 6 Li has been calculated in the framework of Effective
Field Theory (EFT) at low energy. Deuteron is assumed as a dibaryon in the initial state. The …

Astrophysical S-factor of the process by Effective Field Theory

S Nahidinezhad, H Sadeghi, H Khalili - Astrophysics and Space Science, 2020 - Springer
Radiative capture reaction d (α, γ) 6 L id(α,γ)^6Li is the only process in the Big-Bang model
that produces L 6 i ^6Li. We develop the formalism based on pionless Effective Field Theory …

Astrophysical and direct capture reactions in a potential-model approach

EM Tursunov, SA Turakulov, AS Kadyrov - Physical Review C, 2018 - APS
The astrophysical He 3 (α, γ) Be 7 and H 3 (α, γ) Li 7 direct capture processes are studied in
the framework of the two-body model with potentials of a simple Gaussian form, which …

astrophysical factor and its implications for Big Bang nucleosynthesis

A Grassi, G Mangano, LE Marcucci, O Pisanti - Physical Review C, 2017 - APS
The α+ d→ 6 Li+ γ radiative capture is studied in order to predict the Li 6 primordial
abundance. Within a two-body framework, the α particle and the deuteron are considered …

d− α Radiative capture process by effective field theory

S Nahidinezhad, H Sadeghi, H Khalili - New Astronomy, 2020 - Elsevier
Two of the main components of nuclear fusion processes which occur in stars are the
radiative capture of deuteron-alpha and its inverse reaction during which helium transforms …