论文标题
奇怪的 - 梅森光谱 - 从指南针到琥珀
Strange-Meson Spectroscopy -- from COMPASS to AMBER
论文作者
论文摘要
Compass是CERN的M2梁线的多功能固定目标实验，旨在研究Hadron的结构和光谱。它收集了迄今为止世界上最大的数据集，该数据集关于$ k^-π^-π^+$最终状态的衍射生产，原则上可以访问所有奇怪的中膜。基于此数据集，我们进行了详尽的部分波分析。它揭示了众所周知的国家大众区域的信号，例如$ k_2^*（1430）$。此外，我们发现了$ K（1630）$的质量区域中类似共振的信号的指示。这个状态将是一个超级国家，因此可能是异国情调的奇怪介子的候选人。在某些领域，部分波分析受到指南针设置的最终粒子识别的运动覆盖率有限。为了克服这一局限性，我们在琥珀实验中提出了一个新的高精度奇异膜光谱测量，该测量将位于CERN的M2 Beam系列。
COMPASS is a multi-purpose fixed-target experiment at CERN's M2 beam line aimed at studying the structure and spectrum of hadrons. It has collected the so far world's largest data set on diffractive production of the $K^-π^-π^+$ final state, which in principle gives access to all strange mesons. Based on this data set, we performed an elaborate partial-wave analysis. It reveals signals in the mass region of well-known states, such as the $K_2^*(1430)$. In addition, we found indications for a resonance-like signal in the mass region of the $K(1630)$. This state would be a supernumerary state and hence could be a candidate for an exotic strange meson. The partial-wave analysis is limited in some areas by the limited kinematic coverage of the final-state particle identification of the COMPASS setup. To overcome this limitation, we propose a new high-precision strange-meson spectroscopy measurement at the AMBER experiment, which will be located at CERN's M2 beam line.
