横向极化质子半inclusive深度非弹性轻子散射中的方位角单自旋与双自旋不对称性
高能物理 - 实验
2020-07-16 v1 高能物理 - 唯象学
核实验
摘要
本文给出横向极化质子产生π介子、带电K介子、质子与反质子的半inclusive轻子产生中一组全面的方位角单自旋与双自旋不对称性。这些不对称性包含先前发表的 HERMES 关于 Collins 与 Sivers 不对称性的结果，其分析已扩展至包含质子与反质子，并提取至三维运动学分箱及扩大相空间。它们由半inclusive深度非弹性散射过程单光子交换近似中允许的、对应于靶极化方向垂直于入射轻子束方向的其余四个单自旋与四个双自旋不对称性的相应结果所补充。其中，显著的非零 调制为可观的蜗轮（II）分布 提供了证据。其余多数调制被发现与零一致，但带电π介子与正K介子的大 调制是显著例外。
引用
@article{arxiv.2007.07755,
title = {Azimuthal single- and double-spin asymmetries in semi-inclusive deep-inelastic lepton scattering by transversely polarized protons},
author = {HERMES Collaboration and A. Airapetian and N. Akopov and Z. Akopov and E. C. Aschenauer and W. Augustyniak and R. Avakian and A. Bacchetta and S. Belostotski and V. Bryzgalov and G. P. Capitani and E. Cisbani and G. Ciullo and M. Contalbrigo and W. Deconinck and R. De Leo and E. De Sanctis and M. Diefenthaler and P. Di Nezza and M. Düren and G. Elbakian and F. Ellinghaus and A. Fantoni and L. Felawka and G. Gavrilov and V. Gharibyan and Y. Holler and A. Ivanilov and H. E. Jackson and S. Joosten and R. Kaiser and G. Karyan and E. Kinney and A. Kisselev and V. Kozlov and P. Kravchenko and L. Lagamba and L. Lapikás and P. Lenisa and W. Lorenzon and S. I. Manaenkov and B. Marianski and H. Marukyan and Y. Miyachi and A. Movsisyan and V. Muccifora and Y. Naryshkin and A. Nass and G. Nazaryan and W. -D. Nowak and L. L. Pappalardo and P. E. Reimer and A. R. Reolon and C. Riedl and K. Rith and G. Rosner and A. Rostomyan and J. Rubin and D. Ryckbosch and A. Schäfer and G. Schnell and B. Seitz and T. -A. Shibata and V. Shutov and M. Statera and A. Terkulov and M. Tytgat and Y. Van Haarlem and C. Van Hulse and D. Veretennikov and I. Vilardi and S. Yaschenko and D. Zeiler and B. Zihlmann and P. Zupranski},
journal= {arXiv preprint arXiv:2007.07755},
year = {2020}
}