标题： NA61\SHINE 中的 Lambda 横向极化：可行性研究 显示英文标题

标题： Lambda transverse polarization in NA61\SHINE at the CERN SPS: feasibility studies

摘要： 自旋极化的$\Lambda$超子在非弹性反应中由未极化的质子与未极化的靶核相互作用产生，已经研究了近40年。 CERN SPS 的 NA61\SHINE 实验在研究质子-质子和质子-核碰撞中的横向极化方面具有很大的潜力。 在本工作中，我们讨论了磁场和探测器接受度对实验可能极化测量的影响。 我们的分析表明，由于进动引起的磁场对$\Lambda$极化的影响比基于探测器接受度的极化偏差小一个数量级，并且识别出类似于其他实验之前观察到的实验信号是可能的。 显示英文摘要

摘要： The spin polarization of $\Lambda$ hyperons produced in inclusive reactions with unpolarized protons on unpolarized targets has been studied for almost 40 years. The NA61\SHINE experiment at the CERN SPS has a great potential to study transverse polarization in p-p and p-A collisions. In this work, we discuss the impact of magnetic field and limited detector acceptance on the possible polarization measurement by this experiment. Our analysis shows that the magnetic field impact on the $\Lambda$ polarization due to precession is one order of magnitude smaller than the detector acceptance-based polarization bias, and the identification of an experimental signal similar to that observed before by other experiments is possible.