170-380 MeV动能范围内氘碳矢量分析幂的测量
核实验
2020-09-03 v2 高能物理 - 实验
摘要
在德国于利希研究中心（Forschungszentrum Jülich）的冷却同步加速器COSY上进行了弹性氘-碳散射中矢量分析幂的测量。使用了170至380 MeV之间的七种动能束流能量。来自极化氘源的自旋矢量极化束被注入、加速至最终所需能量并存储在COSY中。使用细针状金刚石条作为碳靶，束流被缓慢导向其上。弹性散射的氘核在前向方向使用多层闪烁体和 straw tubes 识别。在文献中存在数据处（200和270 MeV），发现了角度形状的极好一致性。所呈现数据的束流极化通过将分析幂的绝对尺度拟合到这些参考来推导。我们的结果扩展了世界数据集，并且对于未来存储环中电偶极矩搜索的极化测量是必要的。它们也将作为极化强子-强子散射理论描述的输入。
引用
@article{arxiv.2003.07566,
title = {Measurement of deuteron carbon vector analyzing powers in the kinetic energy range 170-380 MeV},
author = {JEDI Collaboration and F. Müller and M. Zurek and Z. Bagdasarian and L. Barion and M. Berz and I. Ciepal and G. Ciullo and S. Dymov and D. Eversmann and M. Gaisser and R. Gebel and K. Grigoryev and D. Grzonka and V. Hejny and N. Hempelmann and J. Hetzel and F. Hinder and A. Kacharava and V. Kamerdzhiev and I. Keshelashvili and I. Koop and A. Kulikov and A. Lehrach and P. Lenisa and N. Lomidze and B. Lorentz and P. Maanen and G. Macharashvili and A. Magiera and D. Mchedlishvili and A. Nass and N. N. Nikolaev and A. Pesce and D. Prasuhn and J. Pretz and F. Rathmann and V. Rolando and M. Rosenthal and A. Saleev and V. Schmidt and Y. Senichev and D. Shergelashvili and V. Shmakova and A. Silenko and J. Slim and H. Soltner and A. Stahl and R. Stassen and E. Stephenson and H. Ströher and M. Tabidze and G. Tagliente and R. Talman and F. Trinkel and Yu. Uzikov and Yu. Valdau and E. Valetov and C. Weidemann and A. Wronska and P. Wüstner},
journal= {arXiv preprint arXiv:2003.07566},
year = {2020}
}