Measurements of Total Reaction Cross Sections for Exotic Nuclei Close to the Proton Drip-line at Intermediate Energies and Observation of a Proton Halo in 27P

Fang De-Qing; Shen Wen-Qing; Feng Jun; Cai Xiang-Zhou; Ma Yu-Gang; Zhang Hu-Yong; Zhong Chen; Zhan Wen-Long; Guo Zhong-Yan; Xiao Guo-Qing; Wang Jian-Song; Wang Jin-Chuan; Li Jia-Xing; Wang Meng; Wang Jian-Feng; Ning Zhen-Jiang; Wang Quan-Jin; Chen Zhi-Qiang

doi:10.1088/0256-307X/18/8/312

Chinese Physics Letters

Measurements of Total Reaction Cross Sections for Exotic Nuclei Close to the Proton Drip-line at Intermediate Energies and Observation of a Proton Halo in ²⁷P

Fang De-Qing¹, Shen Wen-Qing^1,3, Feng Jun¹, Cai Xiang-Zhou¹, Ma Yu-Gang¹, Zhang Hu-Yong¹, Zhong Chen¹, Zhan Wen-Long², Guo Zhong-Yan², Xiao Guo-Qing², Wang Jian-Song², Wang Jin-Chuan², Li Jia-Xing², Wang Meng², Wang Jian-Feng², Ning Zhen-Jiang², Wang Quan-Jin² and Chen Zhi-Qiang²

Published under licence by IOP Publishing Ltd
Chinese Physics Letters, Volume 18, Number 8 Citation Fang De-Qing et al 2001 Chinese Phys. Lett. 18 1033 DOI 10.1088/0256-307X/18/8/312

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¹ Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800

² Institute of Modern Physics, Chinese Academy of Sciences, Lanzhuo 730000

³ Department of Physics, Ningbo University, Ningbo 315211

Dates

Received 26 February 2001

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Abstract

Measurements of the total reaction cross sections (σ_R) for some proton-rich nuclei (N = 11-15 isotones) on a carbon target at intermediate energies have been performed on the Radioactive Ion Beam Line of the Heavy Ion Research Facility in Lanzhou. A larger enhancement of σ_R for ²⁷P has been observed than for its neighbours. Evidence for a proton halo in ²⁷P has been revealed in the Glauber analysis of the total reaction cross sections in terms of the difference factor d.

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