来自NA61/SHINE的新闻
News from NA61/SHINE
- Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences（亨利克·涅沃德尼茨基核物理研究所，波兰科学院）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本文总结了NA61/SHINE实验在强相互作用方面的最新结果，包括多种碰撞系统中的介子谱、极化及同位旋对称性破坏等测量。
AI中文摘要：
NA61/SHINE是欧洲核子研究中心SPS上的一台多用途固定靶强子谱仪。其研究计划包括强相互作用的研究，以及为中微子和宇宙射线物理提供参考测量。NA61/SHINE相对于对撞机实验的一个显著优势是其对粒子产生可用相空间的扩展覆盖。本报告总结了来自我们强相互作用计划的最新选定结果。这些结果包括：Xe+La反应中$K^+$和$\pi^-$介子的快度谱与其他碰撞系统的比较；Xe+La中缩放$\pi^-$总产额的能量依赖性（“扭结”图）与其他碰撞系统和模型的比较；Ar+Sc碰撞中$\phi$(1020)介子的快度谱与模型的比较；p+p反应中$\Lambda$超子的横向极化；Ar+Sc碰撞中净电荷分布强度量的能量依赖性及其与p+p结果的比较；以及关于在Kaon产生中同位旋对称性大尺度破坏证据的更新——带电Kaon相对于中性Kaon的过剩。
英文摘要：
NA61/SHINE is a multi-purpose, fixed-target hadron spectrometer at the CERN SPS. Its research program includes studies of strong interactions, as well as reference measurements for neutrino and cosmic-ray physics. A significant advantage of NA61/SHINE over collider experiments is its extended coverage of phase space available for particle production. This contribution summarizes recent selected results from our strong interaction program. These include rapidity spectra of $K^+$ and $π^-$ mesons in Xe+La reactions compared to other collision systems, energy dependence of the scaled $π^-$ total yield (the `kink` plot) in Xe+La compared to other collision systems and models, $ϕ$(1020) rapidity spectra in Ar+Sc collisions compared to models, $Λ$ transverse polarization in p+p reactions, energy dependence of intensive quantities of net-electric charge distribution in Ar+Sc collisions compared to p+p results, as well as an update on the evidence of large violation of isospin symmetry in kaon production --- the excess of charged over neutral kaons.
