深度非弹性区 $A_1^n$ 的精密测量
核实验
2019-08-02 v3
摘要
我们利用开放式大接受度谱仪，在深度非弹性散射区对中子的双自旋虚光子不对称性 进行了精密测量。我们的数据覆盖了广泛的运动学范围 ，平均 值为 3.078~(GeV/c)，使该 范围内可用的高精度中子数据增加了一倍。我们将结果与全球质子靶数据相结合，提取了相同运动学范围内上夸克和下夸克的极化与非极化部分子分布函数之比。我们的数据与先前关于 在 附近存在过零点的观测一致。我们发现，直至 ， 转变为正斜率的证据缺失。
引用
@article{arxiv.1406.1207,
title = {Precision Measurements of $A_1^n$ in the Deep Inelastic Regime},
author = {D. S. Parno and D. Flay and M. Posik and K. Allada and W. Armstrong and T. Averett and F. Benmokhtar and W. Bertozzi and A. Camsonne and M. Canan and G. D. Cates and C. Chen and J. -P. Chen and S. Choi and E. Chudakov and F. Cusanno and M. M. Dalton and W. Deconinck and C. W. de Jager and X. Deng and A. Deur and C. Dutta and L. El Fassi and G. B. Franklin and M. Friend and H. Gao and F. Garibaldi and S. Gilad and R. Gilman and O. Glamazdin and S. Golge and J. Gomez and L. Guo and O. Hansen and D. W. Higinbotham and T. Holmstrom and J. Huang and C. Hyde and H. F. Ibrahim and X. Jiang and G. Jin and J. Katich and A. Kelleher and A. Kolarkar and W. Korsch and G. Kumbartzki and J. J. LeRose and R. Lindgren and N. Liyanage and E. Long and A. Lukhanin and V. Mamyan and D. McNulty and Z. -E. Meziani and R. Michaels and M. Mihovilovič and B. Moffit and N. Muangma and S. Nanda and A. Narayan and V. Nelyubin and B. Norum and Nuruzzaman and Y. Oh and J. C. Peng and X. Qian and Y. Qiang and A. Rakhman and S. Riordan and A. Saha and B. Sawatzky and M. H. Shabestari and A. Shahinyan and S. Širca and P. Solvignon and R. Subedi and V. Sulkosky and W. A. Tobias and W. Troth and D. Wang and Y. Wang and B. Wojtsekhowski and X. Yan and H. Yao and Y. Ye and Z. Ye and L. Yuan and X. Zhan and Y. Zhang and Y. -W. Zhang and B. Zhao and X. Zheng},
journal= {arXiv preprint arXiv:1406.1207},
year = {2019}
}
备注
6 pages, 2 figures, 3 tables. Two typos corrected in Table 3