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arXiv 0811.1345hep-ph
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强子谱中的夸克力

Quark Forces from Hadron Spectroscopy

Dan Pirjol, Carlos Schat

摘要:

我们考虑了最一般的两体夸克-夸克相互作用哈密顿量对负宇称L=1激发重子自旋-味道结构的影响。假设最一般的两体夸克相互作用哈密顿量,我们推导出这些状态的质量和混合角之间的两个相关性,这限制了混合角,并可用于测试三体夸克相互作用的存在。我们发现,纯胶子交换模型是不赞成的数据,独立于任何假设的强子波函数。

英文摘要:

We consider the implications of the most general two-body quark-quark interaction Hamiltonian for the spin-flavor structure of the negative parity L=1 excited baryons. Assuming the most general two-body quark interaction Hamiltonian, we derive two correlations among the masses and mixing angles of these states, which constrain the mixing angles, and can be used to test for the presence of three-body quark interactions. We find that the pure gluon-exchange model is disfavored by data, independently of any assumptions about the hadronic wave functions.

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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