Measurement of Total Reaction Cross Sections for <SUP>8</SUP>B and <SUP>9</SUP>C on Silicon Target

WANG Quan-Jin; ZHAN Wen-Long; GUO Zhong-Yan; XIAO Guo-Qing; SUN Zhi-Yu; WANG Meng; CHEN Zhi-Qiang; LI Jia-Xing; WANG Jian-Song; NING Zhen-Jiang; WANG Jin-Chuan; WANG Jian-Feng

Chinese Physics C> 2001, Vol. 25> Issue(12) : 1165-1170

Measurement of Total Reaction Cross Sections for ⁸B and ⁹C on Silicon Target

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
Intermediate energy radioactive ion beams of ⁸B and ⁹C were produced with 75MeV/u ¹²C beam on ⁹Be target. Total reaction cross sections σ R for ⁸B and ⁹C on silicon target were measured by the transmission method at the second focus of RIBLL. If the two nuclei are treated as normal nuclei, the values of the total cross sectious calculated by Glauber Model are much lower than the experimental ones. Assuming additional tails for the nuclear density distribution of ⁸B and ⁹C, the calculated values reproduce the experimental data very well. The experimental results combined with Glauber theory analysis show that ⁸B and ⁹C may be of a halo structure.

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WANG Quan-Jin, ZHAN Wen-Long, GUO Zhong-Yan, XIAO Guo-Qing, SUN Zhi-Yu, WANG Meng, CHEN Zhi-Qiang, LI Jia-Xing, WANG Jian-Song, NING Zhen-Jiang, WANG Jin-Chuan and WANG Jian-Feng. Measurement of Total Reaction Cross Sections for ⁸B and ⁹C on Silicon Target[J]. Chinese Physics C, 2001, 25(12): 1165-1170.

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Received: 2000-09-21
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Measurement of Total Reaction Cross Sections for ⁸B and ⁹C on Silicon Target

Corresponding author: WANG Quan-Jin,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 2000-09-21

Accepted Date: 1900-01-01

Available Online: 2001-12-05

Abstract: Intermediate energy radioactive ion beams of ⁸B and ⁹C were produced with 75MeV/u ¹²C beam on ⁹Be target. Total reaction cross sections σ R for ⁸B and ⁹C on silicon target were measured by the transmission method at the second focus of RIBLL. If the two nuclei are treated as normal nuclei, the values of the total cross sectious calculated by Glauber Model are much lower than the experimental ones. Assuming additional tails for the nuclear density distribution of ⁸B and ⁹C, the calculated values reproduce the experimental data very well. The experimental results combined with Glauber theory analysis show that ⁸B and ⁹C may be of a halo structure.

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Measurement of Total Reaction Cross Sections for ⁸B and ⁹C on Silicon Target

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Measurement of Total Reaction Cross Sections for ⁸B and ⁹C on Silicon Target

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Measurement of Total Reaction Cross Sections for 8B and 9C on Silicon Target

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Measurement of Total Reaction Cross Sections for 8B and 9C on Silicon Target

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Measurement of Total Reaction Cross Sections for ⁸B and ⁹C on Silicon Target

Measurement of Total Reaction Cross Sections for ⁸B and ⁹C on Silicon Target