Interference Phenomenona of Doorday State Procedure in Radiative Capture Reactions

ZHAO Wei-Juan; YANG Liu; LIU Jian-Feng; HUO Yu-Kun

Chinese Physics C> 2001, Vol. 25> Issue(9) : 850-858

Interference Phenomenona of Doorday State Procedure in Radiative Capture Reactions

Faculty of Physical Engineering. Zhengzhou University, Zhengzhou 450052, China2 Department of Physics, Jiaozuo Normal University Jiaozuo 454152, China3 Nuclear Science Department, Fudan University, Shanghai 200433, China

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Abstract：
Particle radiative capture cross sections of ¹²C(n,γ) and ¹²C(p,γ) have been calcaulated at 90° in the neutron energy range of 5—25MeV and proton energy range of 8—35MeV. Pigmy resonance exists at the excitation energy E_x=13MeV in ¹²C(n,γ) reaction. The dips observed at the excitation energy around 11.74MeV and 14.06MeV in ¹²C(p,γ) reaction are attributed to the destructive interference between semidirect capture and fine resonance capture in the process of doorday state. The calculations agree with expermental results.

References

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ZHAO Wei-Juan, YANG Liu, LIU Jian-Feng and HUO Yu-Kun. Interference Phenomenona of Doorday State Procedure in Radiative Capture Reactions[J]. Chinese Physics C, 2001, 25(9): 850-858.

ZHAO Wei-Juan, YANG Liu, LIU Jian-Feng and HUO Yu-Kun. Interference Phenomenona of Doorday State Procedure in Radiative Capture Reactions[J]. Chinese Physics C, 2001, 25(9): 850-858. shu

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Received: 2000-12-11
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Interference Phenomenona of Doorday State Procedure in Radiative Capture Reactions

Corresponding author: ZHAO Wei-Juan,

Faculty of Physical Engineering. Zhengzhou University, Zhengzhou 450052, China2 Department of Physics, Jiaozuo Normal University Jiaozuo 454152, China3 Nuclear Science Department, Fudan University, Shanghai 200433, China

Received Date: 2000-12-11
Accepted Date: 1900-01-01
Available Online: 2001-09-05

Abstract: Particle radiative capture cross sections of ¹²C(n,γ) and ¹²C(p,γ) have been calcaulated at 90° in the neutron energy range of 5—25MeV and proton energy range of 8—35MeV. Pigmy resonance exists at the excitation energy E_x=13MeV in ¹²C(n,γ) reaction. The dips observed at the excitation energy around 11.74MeV and 14.06MeV in ¹²C(p,γ) reaction are attributed to the destructive interference between semidirect capture and fine resonance capture in the process of doorday state. The calculations agree with expermental results.