The Spin Effect of Antiproton-Nucleus Inelastic Collison

LI Yang-Guo

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2024年10月30日

Chinese Physics C> 1992, Vol. 16> Issue(2) : 137-144

The Spin Effect of Antiproton-Nucleus Inelastic Collison

LI Yang-Guo ^,

Department of Physics,Shantou University,515063

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Abstract：
If the antiproton optical potential is inclusive of the spin orbit interaction term,the A(p,p)A* inelastic scattering not only can excited the normal parity states,but also can excited the abnormal parity states.There are also induced the polarization P_f(θ) at the inelastic scattering.In the framework of DWIA,we derived the inelastic scattering cross section (dσ/dΩ)_f,i,and polarization P_f(θ),and calculated the (dσ/dΩ)_f,i, and P_f(θ) for ¹²C(p,p)¹²C* with 2⁺,3^－ and 1⁺ states at antiproton energies of 46.8 and 179.7MeV.They fited experiment data quite well.Due to the abnormal partity states in the inelastic process have been measured,the spin orbit term can not be neglect.

References

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C. M. Perey et al., Atomic Data and Nuclear Data Table, 17(1976), 1.[2] 李扬国，高能物理与核物理，12(1988)，501.[3] D. Garreta et al., Phys. Lett., 135B(1984), 266; 139B(I984), 464; 149B(1984,) 64; 151B(1985), 473.[4] J. C. Peng私人通讯.[5] S. Janouin, et al., Nucl. Phys., 451A(1986), 541.[6] R. Birsa et al., CERN-EP/85-28.[7] 李扬国，高能物理与核物理，13(1989)，539.汕头大学学报，2(1987)，1.[8] 李扬国，高能物理与核物理,13(1989)，433.[9] N. Hoshizaki, Suppl, of Prog. Theor. Phys., 42(1968), 107.[10] G.Bendiscioli et al., CERN-EP/87-61.[11] Li.Yang-guo and Chiang Huan-ching, Nucl. Phys., 454A(1986), 720.[12] P.D. Kunz DWUCK4 Program.

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LI Yang-Guo. The Spin Effect of Antiproton-Nucleus Inelastic Collison[J]. Chinese Physics C, 1992, 16(2): 137-144.

LI Yang-Guo. The Spin Effect of Antiproton-Nucleus Inelastic Collison[J]. Chinese Physics C, 1992, 16(2): 137-144. 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

The Spin Effect of Antiproton-Nucleus Inelastic Collison

LI Yang-Guo ^,

Corresponding author: LI Yang-Guo,

Department of Physics,Shantou University,515063

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1992-02-05

Abstract: If the antiproton optical potential is inclusive of the spin orbit interaction term,the A(p,p)A* inelastic scattering not only can excited the normal parity states,but also can excited the abnormal parity states.There are also induced the polarization P_f(θ) at the inelastic scattering.In the framework of DWIA,we derived the inelastic scattering cross section (dσ/dΩ)_f,i,and polarization P_f(θ),and calculated the (dσ/dΩ)_f,i, and P_f(θ) for ¹²C(p,p)¹²C* with 2⁺,3^－ and 1⁺ states at antiproton energies of 46.8 and 179.7MeV.They fited experiment data quite well.Due to the abnormal partity states in the inelastic process have been measured,the spin orbit term can not be neglect.