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Hossein Sadeghi

Hossein Sadeghi

Academic rank: Professor
ORCID: https://orcid.org/0000-0002-8772-951X
Education: PhD.
ScopusId: 8346441700
HIndex:
Faculty: Science
Address: Arak University
Phone:

Research

Title
Astrophysical S-factor of the d(α,γ)6Li process by Effective Field Theory
Type
JournalPaper
Keywords
Deuteron-alpha radiative capture·Effective Field Theory·Cross-section·Astrophysical S-factor
Year
2020
Journal ASTROPHYS SPACE SCI
DOI
Researchers Hossein Sadeghi

Abstract

Radiative capture reaction d(α,γ)6Li is the only process in the Big-Bang model that produces 6Li. We develop the formalism based on pionless Effective Field Theory (EFT) for deuteron-alpha scattering to derive the crosssection of deuteron-alpha radiative capture. Based on this model, nucleons and alpha particle interact through separable two-body forces. The alpha particle is assumed point particleandtheastrophysicalS-factorforthe d(α,γ)6Li reactioniscalculatedinthelow-energies.Thecoulombeffects are also considered as a coulomb correction in the crosssectionfortwofirstelectricmultipoletransitions,uptoNext to Leading Order (NLO). The obtained results are shown a satisfactory agreement between theoretical and experimental results for the calculated observables.