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Study of proton resonances in 18Ne via resonant elastic scattering of 17F+p and its astrophysical implication

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  • Radioactive Nuclear Beam Physics and Nuclear Astrophysics
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Abstract

The proton resonant properties in 18Ne, which determine the reaction rate of the key stellar 14O(α,p)17F reaction, have been studied by using a technique of proton resonant elastic scattering of 17F+p. A 4.22 MeV/nucleon 17F radioactive ion (RI) beam was produced via a projectile-fragmentation reaction, and separated by a Radioactive Ion Beam Line in Lanzhou (RIBLL). By bombarding a thick (CH2) n target, the energy spectra of the recoiled protons were measured by two ΔE-E silicon telescopes at the center-of-mass scattering angles of θ c.m.≈175°±5°, θ c.m.≈152°±8°, respectively. Several proton resonances in 18Ne were observed clearly. A further R-matrix analysis of the experimental data is under way to determine the resonant parameters. The present work reports the preliminary results briefly.

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Authors and Affiliations

  1. Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou, 730000, China

    JianJun He, Jun Hu, ShiWei Xu, ZhiQiang Chen, XueYing Zhang, JianSong Wang, **angQing Yu, LiYong Zhang, Long Li, YanYun Yang, Peng Ma, XueHeng Zhang, ZhengGuo Hu, ZhongYan Guo, **ng Xu, **aoHua Yuan, Wan Lu, YuHong Yu, YongDong Zang, ShuWen Tang, Rui** Ye, **Da Chen, ShiLun **, ChengMing Du, ShiTao Wang, JunBing Ma, Long**ang Liu, Zhen Bai, **angGuo Lei, ZhiYu Sun, YuHu Zhang, **aoHong Zhou & HuShan Xu

  2. Graduate University of Chinese Academy of Sciences, Bei**g, 100049, China

    Jun Hu, LiYong Zhang, Long Li, YanYun Yang, Peng Ma, **ng Xu, Wan Lu, YongDong Zang, ShuWen Tang, Rui** Ye, **Da Chen, ShiLun **, ChengMing Du, ShiTao Wang, JunBing Ma, Long**ang Liu & Zhen Bai

  3. China Institute of Atomic Energy (CIAE), Bei**g, 102413, China

    Jun Su & ErTao Li

  4. Shanghai Institute of Applied Physics (SINAP), Chinese Academy of Sciences, Shanghai, 201800, China

    HongWei Wang & WenDong Tian

  5. School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Bei**g, 100871, China

    **angQing Li

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  1. JianJun He
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Correspondence to JianJun He.

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He, J., Hu, J., Xu, S. et al. Study of proton resonances in 18Ne via resonant elastic scattering of 17F+p and its astrophysical implication. Sci. China Phys. Mech. Astron. 54 (Suppl 1), 32–36 (2011). https://doi.org/10.1007/s11433-011-4407-9

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  • DOI: https://doi.org/10.1007/s11433-011-4407-9

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