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基于HIAF SRing的并束实验设计及研究

申国栋 杨建成 吴波 王科栋 夏佳文 冒立军 柴伟平 石健 殷达钰 盛丽娜

申国栋, 杨建成, 吴波, 王科栋, 夏佳文, 冒立军, 柴伟平, 石健, 殷达钰, 盛丽娜. 基于HIAF SRing的并束实验设计及研究[J]. 原子核物理评论, 2016, 33(4): 428-432. doi: 10.11804/NuclPhysRev.33.04.428
引用本文: 申国栋, 杨建成, 吴波, 王科栋, 夏佳文, 冒立军, 柴伟平, 石健, 殷达钰, 盛丽娜. 基于HIAF SRing的并束实验设计及研究[J]. 原子核物理评论, 2016, 33(4): 428-432. doi: 10.11804/NuclPhysRev.33.04.428
SHEN Guodong, YANG Jiancheng, WU Bo, WANG Kedong, XIA Jiawen, MAO Lijun, CHAI Weiping, SHI Jian, YIN Dayu, SHENG Lina. Design and Research of Merging Experiment Based on HIAF SRing[J]. Nuclear Physics Review, 2016, 33(4): 428-432. doi: 10.11804/NuclPhysRev.33.04.428
Citation: SHEN Guodong, YANG Jiancheng, WU Bo, WANG Kedong, XIA Jiawen, MAO Lijun, CHAI Weiping, SHI Jian, YIN Dayu, SHENG Lina. Design and Research of Merging Experiment Based on HIAF SRing[J]. Nuclear Physics Review, 2016, 33(4): 428-432. doi: 10.11804/NuclPhysRev.33.04.428

基于HIAF SRing的并束实验设计及研究

doi: 10.11804/NuclPhysRev.33.04.428
基金项目: 中国科学院新型交叉与前沿学科试点项目(Y213150YQ0)
详细信息
    作者简介:

    申国栋(1988-),男,河南安阳人,在读博士,从事加速器物理研究;E-mail:shenguodong@impcas.ac.cn

    通讯作者: 杨建成,E-mail:yangjch@impcas.ac.cn
  • 中图分类号: O572.21+1

Design and Research of Merging Experiment Based on HIAF SRing

Funds: New Interdisciplinary and Advanced Pilot Fund of Chinese Academy of Sciences(Y213150YQ0)
  • 摘要: 超重核的真空衰变对于验证量子电动力学至关重要,由于过去的固定靶实验中,核外电子干扰正负电子对的测量,国际上尚未观测到该现象。提出基于HIAF SRing的并束实验方案,通过238U92+在自由空间碰撞,排除了核外电子的影响。根据亮度理论,结合对交叉角度、Laslett频移和束束相互作用的分析,优化得到1.9×1024 cm-2s-1的峰值亮度,基本满足了实验需求。


    Vacuum decay phenomenon of superheavy nucleus is a problem of fundamental interest to verify quantum electrodynamics. As the shell electrons interfere the detection of electron-positron pairs in the fixed target experiments in the past, it's still not corroborated. A new merging experiment scheme is proposed in this paper. The interference of shell electrons is eliminated by collisions of 238U92+ in free space. According to the luminosity theory and the analyses of crossing angle, Laslett tune shift and beam-beam interaction, an optimized peak luminosity of 1.9×1024 cm -2·s -1 is achieved. It meets the requirements of merging experiment essentially.
  • [1] YANG J C, XIA J W, XIAO G Q, et al. Nucl Instr and Meth B, 2013, 317:263.
    [2] WANG Yu. Electron-positron pair creation by two nucleus Coulomb and laser fields[D]. Changsha:Graduate School of National University of Defense Technology, 2008. (in Chinese) (王玉. 双核子库仑场和激光场中正负电子对才产生[D]. 长沙:国防科学技术大学研究生院, 2008.)
    [3] TER-AKOPIAN G M, GREINER W, MESHKOV I N, et al. Int J Mod Phys E, 2015, 24(3):1550016.
    [4] KATAYAMA T, SUDA T, TANIHATA I. Physica Scripta, 2003, T104:129.
    [5] YURI K. BATYGIN, TAKESHI KATAYAMA. MERGING BEAM-BEAM INTERACTION. Proceedings of the 1999 Particle Accelerator Conference[C], New York, Joint Accelerator Conferences Website, 1999:99.
    [6] LASLETT L J. On Intensity Limitations Imposed by Transverse Space-charge Effects in Circular Particle Accelerators[C]. Summer Study on Storage Rings, BNL Report 7534, 325.
    [7] HOFMANN A. Tune Shifts From Self Fields and Images[C]. CERN 94:329.
    [8] ABEYRATNE S, ACCARDI A, AHMED S, et al. Science Requirements and Conceptual Design for a Polarized Medium Energy Electron-Ion Collider at Jefferson Lab[EB/OL], arXiv:1209.0757.
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  • 被引次数: 0
出版历程
  • 收稿日期:  2016-01-14
  • 修回日期:  2016-03-09
  • 刊出日期:  2016-12-20

基于HIAF SRing的并束实验设计及研究

doi: 10.11804/NuclPhysRev.33.04.428
    基金项目:  中国科学院新型交叉与前沿学科试点项目(Y213150YQ0)
    作者简介:

    申国栋(1988-),男,河南安阳人,在读博士,从事加速器物理研究;E-mail:shenguodong@impcas.ac.cn

    通讯作者: 杨建成,E-mail:yangjch@impcas.ac.cn
  • 中图分类号: O572.21+1

摘要: 超重核的真空衰变对于验证量子电动力学至关重要,由于过去的固定靶实验中,核外电子干扰正负电子对的测量,国际上尚未观测到该现象。提出基于HIAF SRing的并束实验方案,通过238U92+在自由空间碰撞,排除了核外电子的影响。根据亮度理论,结合对交叉角度、Laslett频移和束束相互作用的分析,优化得到1.9×1024 cm-2s-1的峰值亮度,基本满足了实验需求。


Vacuum decay phenomenon of superheavy nucleus is a problem of fundamental interest to verify quantum electrodynamics. As the shell electrons interfere the detection of electron-positron pairs in the fixed target experiments in the past, it's still not corroborated. A new merging experiment scheme is proposed in this paper. The interference of shell electrons is eliminated by collisions of 238U92+ in free space. According to the luminosity theory and the analyses of crossing angle, Laslett tune shift and beam-beam interaction, an optimized peak luminosity of 1.9×1024 cm -2·s -1 is achieved. It meets the requirements of merging experiment essentially.

English Abstract

申国栋, 杨建成, 吴波, 王科栋, 夏佳文, 冒立军, 柴伟平, 石健, 殷达钰, 盛丽娜. 基于HIAF SRing的并束实验设计及研究[J]. 原子核物理评论, 2016, 33(4): 428-432. doi: 10.11804/NuclPhysRev.33.04.428
引用本文: 申国栋, 杨建成, 吴波, 王科栋, 夏佳文, 冒立军, 柴伟平, 石健, 殷达钰, 盛丽娜. 基于HIAF SRing的并束实验设计及研究[J]. 原子核物理评论, 2016, 33(4): 428-432. doi: 10.11804/NuclPhysRev.33.04.428
SHEN Guodong, YANG Jiancheng, WU Bo, WANG Kedong, XIA Jiawen, MAO Lijun, CHAI Weiping, SHI Jian, YIN Dayu, SHENG Lina. Design and Research of Merging Experiment Based on HIAF SRing[J]. Nuclear Physics Review, 2016, 33(4): 428-432. doi: 10.11804/NuclPhysRev.33.04.428
Citation: SHEN Guodong, YANG Jiancheng, WU Bo, WANG Kedong, XIA Jiawen, MAO Lijun, CHAI Weiping, SHI Jian, YIN Dayu, SHENG Lina. Design and Research of Merging Experiment Based on HIAF SRing[J]. Nuclear Physics Review, 2016, 33(4): 428-432. doi: 10.11804/NuclPhysRev.33.04.428
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