RHIC 库仑核干涉区的绝对极化测量
核实验
2008-11-26 v1
摘要
布鲁克海文国家实验室的相对论重离子对撞机提供极化质子束以研究核子自旋结构。对于极化测定,在小动量转移()的库仑核干涉区使用碳-质子和质子-质子散射。在加速器存储期间,用碳纤维靶对每束流进行多次快速极化测量。需要极化氢气体喷靶以在多次存储间进行绝对归一,同时靶极化在 Breit-Rabi 偏振计中持续监测。2005 年,该喷靶偏振计已用于 RHIC 两束流。我们给出喷靶偏振计的结果,包括对不对称性及束流极化的本底贡献的详细分析。
引用
@article{arxiv.nucl-ex/0612020,
title = {Absolute Polarization Measurements at RHIC in the Coulomb Nuclear Interference Region},
author = {K. O. Eyser and I. Alekseev and A. Bravar and G. Bunce and S. Dhawan and R. Gill and W. Haeberli and H. Huang and O. Jinnouchi and Y. Makdisi and I. Nakagawa and A. Nass and H. Okada and E. Stephenson and D. Svirida and T. Wise and J. Wood and A. Zelenski},
journal= {arXiv preprint arXiv:nucl-ex/0612020},
year = {2008}
}
备注
4 pages, 2 figures. to appear in the proceedings of the 17th International Spin Physics Symposium (SPIN 2006), Kyoto, Japan, 2-7 Oct. 2006