Antiproton-Nucleus Elastic Scattering at Intermediate Energies

LI Yang-Guo

Chinese Physics C> 1993, Vol. 17> Issue(9) : 829-834

Antiproton-Nucleus Elastic Scattering at Intermediate Energies

LI Yang-Guo ^,

Shantou University,Guangdong,515063

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Abstract：
Using the experimental pN amplitudes and multiple scattering theory,we obtained the antiproton optical potential at incident energies from 180 to 1800MeV under the impulse approximation.It is found that the imaginary parts of the optical potential strengths are nearly constant between 120 to 140MeV.By using these optical potentials,We have the calculation results of the elastic scattering differential cross sections from the closed shell nuclei ¹²C,²⁶O,⁴⁰Ca and ²⁰⁸pb for five kinetic energies ranging from 180 to 1800MeV.At 180MeV,the experimental data are fitted very well,and the theoretical results at higher energies are predicted.

References

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LI Yang-Guo. Antiproton-Nucleus Elastic Scattering at Intermediate Energies[J]. Chinese Physics C, 1993, 17(9): 829-834.

LI Yang-Guo. Antiproton-Nucleus Elastic Scattering at Intermediate Energies[J]. Chinese Physics C, 1993, 17(9): 829-834. shu

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Received: 1900-01-01
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Antiproton-Nucleus Elastic Scattering at Intermediate Energies

LI Yang-Guo ^,

Corresponding author: LI Yang-Guo,

Shantou University,Guangdong,515063

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1993-09-05

Abstract: Using the experimental pN amplitudes and multiple scattering theory,we obtained the antiproton optical potential at incident energies from 180 to 1800MeV under the impulse approximation.It is found that the imaginary parts of the optical potential strengths are nearly constant between 120 to 140MeV.By using these optical potentials,We have the calculation results of the elastic scattering differential cross sections from the closed shell nuclei ¹²C,²⁶O,⁴⁰Ca and ²⁰⁸pb for five kinetic energies ranging from 180 to 1800MeV.At 180MeV,the experimental data are fitted very well,and the theoretical results at higher energies are predicted.