Antiproton-Nucleus Elastic Scatting at Intermediate Energies

Li Yangguo

Chinese Physics C> 1993, Vol. 17> Issue(S2) : 199-205

Antiproton-Nucleus Elastic Scatting at Intermediate Energies

Li Yangguo

Department of Physics, Shantou University, Guangdong, China

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Abstract：
Using the experimental pN amplitudes and the multiple scattering theory, we obtained the antiproton potential at incident energies from 180 to 1800 MeV under the impulse approximation. We found that the imaginary parts of the optical potential strengths are nearly constant from 130 to 140 MeV. By using these optical potentials, we obtain the calculation results of the elastic scattering differential cross sections from the closed shell nuclei ¹²C, ¹⁶O, ⁴⁰Ca and ²⁰⁸Pb for five kinetic energies ranging from 180 to 1800 MeV. At 180 MeV, the experimental data are fitted very well, and the theoretical results at higher energies are predicted.

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Li Yangguo. Antiproton-Nucleus Elastic Scatting at Intermediate Energies[J]. Chinese Physics C, 1993, 17(S2): 199-205.

Li Yangguo. Antiproton-Nucleus Elastic Scatting at Intermediate Energies[J]. Chinese Physics C, 1993, 17(S2): 199-205. shu

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Received: 1992-02-17

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Supported by the National Natural Science Foundation of China.

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沈阳化工大学材料科学与工程学院沈阳 110142

Antiproton-Nucleus Elastic Scatting at Intermediate Energies

Li Yangguo

Department of Physics, Shantou University, Guangdong, China

Received Date: 1992-02-17

Fund Project: Supported by the National Natural Science Foundation of China.

Abstract: Using the experimental pN amplitudes and the multiple scattering theory, we obtained the antiproton potential at incident energies from 180 to 1800 MeV under the impulse approximation. We found that the imaginary parts of the optical potential strengths are nearly constant from 130 to 140 MeV. By using these optical potentials, we obtain the calculation results of the elastic scattering differential cross sections from the closed shell nuclei ¹²C, ¹⁶O, ⁴⁰Ca and ²⁰⁸Pb for five kinetic energies ranging from 180 to 1800 MeV. At 180 MeV, the experimental data are fitted very well, and the theoretical results at higher energies are predicted.