STUDY OF ANGULAR DISTRIBUTION OF THE SCATTERING OF 31.2 MeV <EM>α</EM> PARTICLE BY THE NUCLEUS <SUP>10.11</SUP>B

KONG XIANG-JING; XIE XIAN-LIANG; SUN CHONG-WEN; BAO ZHENG-KAI; WANG ZHEN-XIA

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2024年10月30日

Chinese Physics C> 1981, Vol. 5> Issue(5) : 600-606

STUDY OF ANGULAR DISTRIBUTION OF THE SCATTERING OF 31.2 MeV α PARTICLE BY THE NUCLEUS ^10.11B

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Abstract：
Angular distribution of the scattering of 31.2 MeV-α-particle by the nucleus ^10,11B is measured. Our results show that there is anomalous phenomenon in the case of ¹⁰B but there is not in ¹¹B. Calculations and analysis are made with the optical model adding the Regge-Pole model. The results show that for the nucleus of 1p-shell, such as α+¹⁶O, the result of the calculation agrees very well with the experimental measurements but it fails in α+¹⁰B. As to the analysis with the double v-power optieal model for α+¹⁶O, the agreement is somewhat a little worse than the former's and the result for α+¹⁰B agrees only qualitatively with the experimental measurement. It is well known that the analysis with these models for α+⁴⁰Ca agrees very well with the experimental data. Thus we may come to the conclusion that the mechanism of ALAS of the nucleus of 2s-1d shell is different from that of 1p-shell, and the mechanisms of ALAS of the nuclei of 1p-shell are also different.

References

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F. Miehel and R. Vanderpoorten, Phys, Rev., C16(1977), 142.[2] W. G. Love, Phys. Rev., C17(1978), 1876.[3] T. 9rokowaki et al., Acta Physica Polonica, B11(1980), 439.[4] D. M. Brink and N. Takigawa, Nucl. Phys., A279(1979), 159.[5] Н. С. Зеленская идр ИАНСССР, Т-43 (11) (1979), 421.[6] 孔祥傲等,《1978年低能核物理会议资料选编》,39.[7] К. И. Кузнецов идр, Я. Ф., 20 (1974), 632.[8] H. Oeacher et al., Nucl. Phys., A202(1973), 513.[9] N. P. David et al., Nucl. Phys., A182(1972), 234.[10] F. Soga et al., Phys. Rev,, C18(1978).2457,[11] H. A . Eberhard et al., Phys. Rev. Lett., 43(1979), 107.

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KONG XIANG-JING, XIE XIAN-LIANG, SUN CHONG-WEN, BAO ZHENG-KAI and WANG ZHEN-XIA. STUDY OF ANGULAR DISTRIBUTION OF THE SCATTERING OF 31.2 MeV α PARTICLE BY THE NUCLEUS ^10.11B[J]. Chinese Physics C, 1981, 5(5): 600-606.

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Received: 1980-11-11
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沈阳化工大学材料科学与工程学院沈阳 110142

STUDY OF ANGULAR DISTRIBUTION OF THE SCATTERING OF 31.2 MeV α PARTICLE BY THE NUCLEUS ^10.11B

Received Date: 1980-11-11
Accepted Date: 1900-01-01
Available Online: 1981-10-05

Abstract: Angular distribution of the scattering of 31.2 MeV-α-particle by the nucleus ^10,11B is measured. Our results show that there is anomalous phenomenon in the case of ¹⁰B but there is not in ¹¹B. Calculations and analysis are made with the optical model adding the Regge-Pole model. The results show that for the nucleus of 1p-shell, such as α+¹⁶O, the result of the calculation agrees very well with the experimental measurements but it fails in α+¹⁰B. As to the analysis with the double v-power optieal model for α+¹⁶O, the agreement is somewhat a little worse than the former's and the result for α+¹⁰B agrees only qualitatively with the experimental measurement. It is well known that the analysis with these models for α+⁴⁰Ca agrees very well with the experimental data. Thus we may come to the conclusion that the mechanism of ALAS of the nucleus of 2s-1d shell is different from that of 1p-shell, and the mechanisms of ALAS of the nuclei of 1p-shell are also different.

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STUDY OF ANGULAR DISTRIBUTION OF THE SCATTERING OF 31.2 MeV α PARTICLE BY THE NUCLEUS ^10.11B

STUDY OF ANGULAR DISTRIBUTION OF THE SCATTERING OF 31.2 MeV α PARTICLE BY THE NUCLEUS ^10.11B