利用 MeV 能量极化电子产生高度极化正电子
加速器物理
2016-07-06 v1 高能物理 - 实验
核实验
摘要
在连续电子束加速器装置注入器上进行的“极化电子产生极化正电子”实验，首次证明了极化电子束在高 Z 靶中产生的极化轫致辐射所引发的正电子，能够高效地将极化从电子转移至正电子。在初始电子束动量为 8.19 MeV/c 时，测得正电子极化率高达 82%，仅受限于电子束极化度。该技术将极化正电子的能力从 GeV 能区扩展至 MeV 电子束，并为更广泛的学界打开了极化正电子束物理的大门。
引用
@article{arxiv.1606.08877,
title = {Production of highly-polarized positrons using polarized electrons at MeV energies},
author = {D. Abbott and P. Adderley and A. Adeyemi and P. Aguilera and M. Ali and H. Areti and M. Baylac and J. Benesch and G. Bosson and B. Cade and A. Camsonne and L. S. Cardman and J. Clark and P. Cole and S. Covert and C. Cuevas and O. Dadoun and D. Dale and H. Dong and J. Dumas and E. Fanchini and T. Forest and E. Forman and A. Freyberger and E. Froidefond and S. Golge and J. Grames and P. Guèye and J. Hansknecht and P. Harrell and J. Hoskins and C. Hyde and B. Josey and R. Kazimi and Y. Kim and D. Machie and K. Mahoney and R. Mammei and M. Marton and J. McCarter and M. McCaughan and M. McHugh and D. McNulty and K. E. Mesick and T. Michaelides and R. Michaels and B. Moffit and D. Moser and C. Muñoz Camacho and J. -F. Muraz and A. Opper and M. Poelker and J. -S. Réal and L. Richardson and S. Setiniyaz and M. Stutzman and R. Suleiman and C. Tennant and C. Tsai and D. Turner and M. Ungaro and A. Variola and E. Voutier and Y. Wang and Y. Zhang},
journal= {arXiv preprint arXiv:1606.08877},
year = {2016}
}
备注
5 pages, 4 figures