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arXiv 1201.4885nucl-thhep-exhep-phnucl-ex
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双重重强子的对称性和系统学

Symmetries and Systematics of Doubly Heavy Hadrons

B. Eakins, W. Roberts

摘要:

我们讨论了扩展的超味对称性的双重重子的状态,其中包含一个受激重双夸克,我们研究的一些后果,这种对称性的光谱的双重重子和重介子。我们探讨了一个建议的对称性,涉及重双夸克的双重重介子的后果。我们提出了一种方法来确定如何激发能的系统包含两个重夸克将标度作为一个改变的相互作用的强度和系统的约化质量。我们用它来推导重双夸克-二重介子对称性的结果。我们将这些结果与夸克模型的结果以及重介子和单重介子的实验数据进行了比较。我们还讨论了把奇夸克当作重夸克来处理的可能性,并把这里发展的思想应用到奇强子上。

英文摘要:

We discuss the extension of the superflavor symmetry of doubly heavy baryons to states which contain an excited heavy diquark, and we examine some of the consequences of this symmetry for the spectra of doubly heavy baryons and heavy mesons. We explore the ramifications of a proposed symmetry that relates heavy diquarks to doubly heavy mesons. We present a method for determining how the excitation energy of a system containing two heavy quarks will scale as one changes the strength of the interactions and the reduced mass of the system. We use this to derive consequences of the heavy diquark-doubly heavy meson symmetry. We compare these consequences to the results of a quark model as well as the experimental data for doubly and singly heavy mesons. We also discuss the possibility of treating the strange quark as a heavy quark and apply the ideas developed here to strange hadrons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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