极化束流质子 - 质子碰撞中的双$\pi$介子产生
核实验
2008-11-26 v1
摘要
利用 COSY-TOF 谱仪的短版本，在 750 和 800 MeV 下使用极化质子束流测量了双介子产生反应。对 Quirl 和中心量能器实施延迟脉冲技术，除了标准的粒子识别、能量测定以及飞行时间和角度测量外，还提供了正识别。因此，所有出射粒子的四动量均可通过 1-4 个过约束条件确定。获得了总截面、微分截面以及矢量分析力的角分布。将这些结果与先前的数据和理论计算进行了比较。与预测相反，我们发现显著的分析力值高达 = 0.3。
引用
@article{arxiv.0806.3870,
title = {Two-Pion Production in Proton-Proton Collisions with Polarized Beam},
author = {S. Abd El-Bary and S. Abd El-Samad and R. Bilger and K. -Th. Brinkmann and H. Clement and M. Dietrich and E. Doroshkevich and S. Dshemuchadse and A. Erhardt and W. Eyrich and A. Filippi and H. Freiesleben and M. Fritsch and R. Geyer and A. Gillitzer and C. Hanhart and J. Hauffe and K. Haug and D. Hesselbarth and R. Jaekel and B. Jakob and L. Karsch and K. Kilian and H. Koch and J. Kress and E. Kuhlmann and S. Marcello and S. Marwinski and R. Meier and K. Moeller and H. P. Morsch and L. Naumann and J. Ritman and E. Roderburg and P. Schoenmeier and M. Schulte-Wissermann and W. Schroeder and M. Steinke and F. Stinzing and G. Y. Sun and J. Waechter and G. J. Wagner and M. Wagner and U. Weidlich and A. Wilms and P. Wintz and S. Wirth and G. Zhang and P. Zupranski},
journal= {arXiv preprint arXiv:0806.3870},
year = {2008}
}