S-Factor of the 3H(α,γ)7Li Reaction at Astrophysical Energies

doi:10.1088/0256-307X/30/10/102501

Chin. Phys. Lett.

2013, Vol. 30

Issue (10): 102501 DOI: 10.1088/0256-307X/30/10/102501

NUCLEAR PHYSICS

S-Factor of the ³H(α,γ)⁷Li Reaction at Astrophysical Energies

H. Sadeghi^**

Department of Physics, Faculty of Science, Arak University, Arak 8349-8-38156, Iran

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H. Sadeghi 2013 Chin. Phys. Lett. 30 102501

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Abstract The astrophysical S-factor for α-³H radiative capture is calculated at astrophysical energies. We construct conserved two- and three-body electromagnetic currents, using minimal substitution in the explicit momentum dependence of the two- and three-nucleon interactions. The realistic Argonne v₁₈ two-nucleon and Urbana IX or Tucson–Melbourne three-nucleon interactions are considered for calculation. By extrapolation of results for the astrophysical S-factor at zero energy, the energy in the order of 1 keV and less is found to be S(0)=0.107(0.112) keV?b, with(without) three-body interactions in satisfactory agreement with other theoretical results and experimental data.

Received: 18 March 2013 Published: 21 November 2013

PACS:	25.55.-e	(3H-, 3He-, and 4He-induced reactions)
	21.60.De	(Ab initio methods)
	27.20.+n	(6 ≤ A ≤ 19)
	26.20.Cd	(Stellar hydrogen burning)

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