论文标题
分散$πk\toπk$和$ππ\ to k \ bar {k} $振幅来自散射数据，阈值参数和最轻的奇怪共振$κ$或$ k^*_ 0（700）$
Dispersive $πK\to πK$ and $ππ\to K \bar{K}$ amplitudes from scattering data, threshold parameters and the lightest strange resonance $κ$ or $K^*_0(700)$
论文作者
论文摘要
我们讨论$πk\ toπk$的同时分散分析，以及$ππ\至k \ bar {k} $散射数据和$κ/k^*_ 0（700）$ resonance。目前和未来的强子实验，现代晶格QCD计算以及新状态和衰减的财富的前所未有的统计数据需要如此精确和模型的独立分析来描述最终状态相互作用。我们回顾现有的且经常相互矛盾的数据，并详细说明相关分散关系的推导，从而最大程度地提高其适用性范围。接下来，我们在一些数据上审查并扩展了警告，显示了它们与分散关系的不一致。我们的主要结果是限制了几个$πk\ toπk$的精确振幅参数化的推导和汇编，而$ππ\ to k \ bar {k} $分散关系。这些受约束的参数易于实现，并提供了现代实验和现象学强生理物理学所需的严格和准确性。作为申请，在审查其状态和权益之后，我们将提供新的精确阈值和子阈值参数，并审查我们对有争议的$κ/k^*_ 0（700）$共振和其他轻型传输共振的分散性确定。
We discuss the simultaneous dispersive analyses of $πK\to πK$ and $ππ\to K \bar{K}$ scattering data and the $κ/K^*_0(700)$ resonance. The unprecedented statistics of present and future Hadron Experiments, modern Lattice QCD calculations, and the wealth of new states and decays, require such precise and model-independent analyses to describe final state interactions. We review the existing and often conflicting data and explain in detail the derivation of the relevant dispersion relations, maximizing their applicability range. Next, we review and extend the caveats on some data, showing their inconsistency with dispersion relations. Our main result is the derivation and compilation of precise amplitude parameterizations constrained by several $πK\to πK$ and $ππ\to K \bar{K}$ dispersion relations. These constrained parameterizations are easily implementable and provide the rigor and accuracy needed for modern experimental and phenomenological Hadron Physics. As applications, after reviewing their status and interest, we will provide new precise threshold and subthreshold parameters and review our dispersive determination of the controversial $κ/K^*_0(700)$ resonance and other light-strange resonances.
