Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners
Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners
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DOI：
10.1088/1361-6471/ab72b0
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发表时间：
2019-08
期刊：
影响因子：
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通讯作者：
Y. Yamaguchi;A. Hosaka;S. Takeuchi;M. Takizawa
中科院分区：
文献类型：
--
作者：
Y. Yamaguchi;A. Hosaka;S. Takeuchi;M. Takizawa
我们讨论了强子分子的选定和重要特征，作为接近阈值的奇异强子的有前途的形式之一。以 $D \bar D^*$ 系统为例，例如 $X(3872)$ 和 $Z_c$，重点放在它们之间的一个 π 介子交换相互作用的作用以及它们与内在夸克态的耦合。因此，强子分子作为占主导地位的长程强子结构和短程夸克结构的混合物出现。对于π介子交换相互作用，详细分析了张量力的性质。更多的耦合通道提供更多的吸引力，更重的成分抑制动能，提供更多机会形成重强子的强子分子。在本文中，我们详细介绍了基本思想和方法。
We discuss selected and important features of hadronic molecules as one of promising forms of exotic hadrons near thresholds. Using examples of $D \bar D^*$ systems such as $X(3872)$ and $Z_c$, emphasis is put on the roles of the one pion exchange interaction between them and their coupling to intrinsic quark states. Thus hadronic molecules emerge as admixtures of the dominant long-range hadron structure and short-range quark structure. For the pion exchange interaction, properties of the tensor force are analyzed in detail. More coupled channels supply more attractions, and heavier constituents suppress kinetic energies, providing more chances to form hadronic molecules of heavy hadrons. Throughout this article, we show details of basic ideas and methods.