Influence of D-state in 4He on S Factor for the 2H(d,γ)4He Reaction
MA Yin-Qun1,2, TIAN Yuan1, MA Zhong-Yu1,3
1China Institute of Atomic Energy, PO Box 275(18), Beijing 102413
2Department of Physics, Taiyuan Teachers College, Taiyuan 030001
3Centre of Theoretical Nuclear Physics, National Laboratory of Heavy Collision, Lanzhou 730000
Influence of D-state in 4He on S Factor for the 2H(d,γ)4He Reaction
MA Yin-Qun1,2;TIAN Yuan1;MA Zhong-Yu1,3
1China Institute of Atomic Energy, PO Box 275(18), Beijing 102413
2Department of Physics, Taiyuan Teachers College, Taiyuan 030001
3Centre of Theoretical Nuclear Physics, National Laboratory of Heavy Collision, Lanzhou 730000
Abstract： We employ a direct capture method to study the influence of D-state in 4He on S factor for the 2H(d,γ)4He reaction, in which the D-state component of the colliding deuterons and D-state component in 4He ground state are considered. The parameters of Woods--Saxon (WS) potentials are obtained by reproducing the binding energy of d--d (i.e. 2H--2H) system, and d--d elastic scattering phase shifts calculated by the resonating group method. The theoretical results are in good agreement with the experimental data at Ec.m < 3MeV. The impact of the D state probability in 4He on the extrapolated value of the astrophysical S factor for 2H(d,γ)4He reaction is discussed.
MA Yin-Qun;TIAN Yuan;MA Zhong-Yu;. Influence of D-state in 4He on S Factor for the 2H(d,γ)4He Reaction[J]. 中国物理快报, 2007, 24(1): 69-71.
MA Yin-Qun, TIAN Yuan, MA Zhong-Yu,. Influence of D-state in 4He on S Factor for the 2H(d,γ)4He Reaction. Chin. Phys. Lett., 2007, 24(1): 69-71.
2007, Vol. 24 
