质子的大角度康普顿散射与单π光生中的极化转移
核实验
2015-10-14 v2
摘要
通过测量从圆偏振光子束到反冲质子的极化转移，研究了来自质子的宽角排他康普顿散射与单π光生。宽角康普顿散射极化转移在入射光子能量 3.7~GeV、质子散射角 \cma 下进行了分析。测得的纵向转移 \KLL 为 ，其中第一个误差为统计误差，第二个为系统误差，其符号与光子同携带质子自旋的单个夸克相互作用的反应机制预测相同。然而，观测值比基于广义部分子分布的计算预测值大 3 倍，这表明散射振幅存在显著的未知贡献。
引用
@article{arxiv.1506.04045,
title = {Polarization Transfer in Wide-Angle Compton Scattering and Single-Pion Photoproduction from the Proton},
author = {C. Fanelli and E. Cisbani and D. J. Hamilton and G. Salme and B. Wojtsekhowski and A. Ahmidouch and J. R. M. Annand and H. Baghdasaryan and J. Beaufait and P. Bosted and E. J. Brash and C. Butuceanu and P. Carter and E. Christy and E. Chudakov and S. Danagoulian and D. Day and P. Degtyarenko and R. Ent and H. Fenker and M. Fowler and E. Frlez and D. Gaskell and R. Gilman and T. Horn and G. M. Huber and C. W. de Jager and E. Jensen and M. K. Jones and A. Kelleher and C. Keppel and M. Khandaker and M. Kohl and G. Kumbartzki and S. Lassiter and Y. Li and R. Lindgren and H. Lovelace and W. Luo and D. Mack and V. Mamyan and D. J. Margaziotis and P. Markowitz and J. Maxwell and G. Mbianda and D. Meekins and M. Meziane and J. Miller and A. Mkrtchyan and H. Mkrtchyan and J. Mulholland and V. Nelyubin and L. Pentchev and C. F. Perdrisat and E. Piasetzky and Y. Prok and A. J. R. Puckett and V. Punjabi and M. Shabestari and A. Shahinyan and K. Slifer and G. Smith and P. Solvignon and R. Subedi and F. R. Wesselmann and S. Wood and Z. Ye and X. Zheng},
journal= {arXiv preprint arXiv:1506.04045},
year = {2015}
}
备注
6 pages, 5 figures, the text has been made consistent with the published