π-<SUP>12</SUP>C ELASTIC SCATTERING IN THE QUASI-Δ<SUB>33</SUB> DOORWAY STATE MODEL

MA Wei-Xing; YU Zi-Qiang; XU Cheng-Xian

Chinese Physics C> 1983, Vol. 7> Issue(2) : 186-196

π-¹²C ELASTIC SCATTERING IN THE QUASI-Δ₃₃ DOORWAY STATE MODEL

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Abstract：
Under the quasi-Δ₃₃ doorway state model, The Tmatrix for π-¹²C elastic scattering at the (3.3) resonance region is calculated. The emphasis is put on that how the variety of the parameters in the model, which reflect many body correction in π-nucleus interaction and the properties of Δ(1232)-hole interaction, influences the angular distribution and total cross section. Acomparison between between theory and experiment is performed, and the agreement is satisfactory. It is interesting that in order to fit existed data, especially the angular distribution, the spin-orbit coupling interaction strength has to be positive which differs from the case for nucleon where it is negative.

References

[1]

高琴等, 高能物理与核物理, 3 (1981), 321.[2] G. E. Brown and W. Weise, Phys. Reports 22C (1975), 280.[3] E. Oset and W. Weise, Nucl. Phys., A319 (1979), 477.[4] W. Weise, Nucl. Phys., A278 (1977), 402.[5] W. Weise, Private Communicaton.[6] F. Binon et al., Nucl. Phys., B17 (1970), 168.[7] E. Oset and W. Weise, Nucl. Phys. A319 (1979), 477; E. oset and W. Weise. Nucl. Phys., A329(1979), 365.[8] E. Bosehitz, Proceedings of the seventh international Conference on High Energy Physics and Nuclear structure, ed M. P. locher, Zurich 1977.

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MA Wei-Xing, YU Zi-Qiang and XU Cheng-Xian. π-¹²C ELASTIC SCATTERING IN THE QUASI-Δ₃₃ DOORWAY STATE MODEL[J]. Chinese Physics C, 1983, 7(2): 186-196.

MA Wei-Xing, YU Zi-Qiang and XU Cheng-Xian. π-¹²C ELASTIC SCATTERING IN THE QUASI-Δ₃₃ DOORWAY STATE MODEL[J]. Chinese Physics C, 1983, 7(2): 186-196. 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

π-¹²C ELASTIC SCATTERING IN THE QUASI-Δ₃₃ DOORWAY STATE MODEL

Corresponding author: MA Wei-Xing,

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1983-04-05

Abstract: Under the quasi-Δ₃₃ doorway state model, The Tmatrix for π-¹²C elastic scattering at the (3.3) resonance region is calculated. The emphasis is put on that how the variety of the parameters in the model, which reflect many body correction in π-nucleus interaction and the properties of Δ(1232)-hole interaction, influences the angular distribution and total cross section. Acomparison between between theory and experiment is performed, and the agreement is satisfactory. It is interesting that in order to fit existed data, especially the angular distribution, the spin-orbit coupling interaction strength has to be positive which differs from the case for nucleon where it is negative.