ANALYIS OF ANTIPROTON-NUCLEUS ELASTIC SCATTERING

LI Yang-Guo

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2024年10月30日

Chinese Physics C> 1988, Vol. 12> Issue(4) : 501-508

ANALYIS OF ANTIPROTON-NUCLEUS ELASTIC SCATTERING

LI Yang-Guo ^,

Shantou University,Guangdong

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Abstract：
The antiproton-nucleus elastic scattering differential cross section of ¹²C,^16,18O,⁴⁰Ca and ²⁰⁸Pb at incident energies 50MeV and 180MeV have been calculated and analysed by optical potential.It is shown that the antiproton optical potential have strong absorption characteristics.It analyzing the optical potential parameters to best fit the experimented data,it is found that the diffuseness parameters could vary only in a narrow region and increased with heavier nuclei.These optical potential have shallow real parts.The absorption coefficients approach to zero inside the target nucleus,so that the elastic scattering takes place at the surface region of nucleus.

References

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D. Garreta et al，Phys. Lett,135B(1984), 2G6.[2] D. Garreta et al., Phys. Lett. 139B(1984), 464;149B( 1984), 64; 151B(1985), 473[3] S. Janouin et al., Nuul. Phys., A451(1986), 541;H. Heiselberg et al., Nucl. Phys., A446(1925p). 637[4] J. LiclUenstadt et al,Phys. Rev,C32(1985),1093;K-I. Kubo. Phys Lett 153B(1985).195[5] D.Garrrta et al., Phys. Lett. 1508(1985), 95.[6] A.K. Kaman et al., Ann. of Phys,8(1959). 551.[7] C.B. Dover and J. hl. Richard, Phys. Rev., 1117(1978), 1i70[8] Li.Yang-guo and Chiang Huan-thing, Nucl. Phys, A454( 1986), 720[9] C.Bricman et al., Phys. Lett,75B(1978). 1[10] O.D. Dalkarov, Nucl. Phys., A445(1985), 579.[11] P.Schwendt., IUCF Report. No 32-3[12] F.Balrstra et al., Phys. Lett., 149B(1984), 69;H.Aikara et al., Nucf. Phys,A360(1981), 291.

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LI Yang-Guo. ANALYIS OF ANTIPROTON-NUCLEUS ELASTIC SCATTERING[J]. Chinese Physics C, 1988, 12(4): 501-508.

LI Yang-Guo. ANALYIS OF ANTIPROTON-NUCLEUS ELASTIC SCATTERING[J]. Chinese Physics C, 1988, 12(4): 501-508. shu

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Received: 1900-01-01
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

ANALYIS OF ANTIPROTON-NUCLEUS ELASTIC SCATTERING

LI Yang-Guo ^,

Corresponding author: LI Yang-Guo,

Shantou University,Guangdong

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1988-08-05

Abstract: The antiproton-nucleus elastic scattering differential cross section of ¹²C,^16,18O,⁴⁰Ca and ²⁰⁸Pb at incident energies 50MeV and 180MeV have been calculated and analysed by optical potential.It is shown that the antiproton optical potential have strong absorption characteristics.It analyzing the optical potential parameters to best fit the experimented data,it is found that the diffuseness parameters could vary only in a narrow region and increased with heavier nuclei.These optical potential have shallow real parts.The absorption coefficients approach to zero inside the target nucleus,so that the elastic scattering takes place at the surface region of nucleus.