Probing the nature of Z c (′) states via the η c ρ decay
Probing the nature of Z c (′) states via the η c ρ decay
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DOI：
10.1016/j.physletb.2015.04.057
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发表时间：
2014-09
影响因子：
4.4
通讯作者：
A. Esposito;A. Guerrieri;A. Pilloni
中科院分区：
文献类型：
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作者：
A. Esposito;A. Guerrieri;A. Pilloni
所谓的XYZ国家的性质是一个长期存在的问题。有人提出，这种粒子可以被描述为致密的四夸克态或松散束缚的介子分子。在本工作中，我们用这两种方法分析了Zc(‘)→ηcρ衰变。这样的渠道可能会对Z c(‘)的性质提供有用的见解，有助于区分这两种不同的模型。
The nature of the so-called XYZ states is a long-standing problem. It has been suggested that such particles may be described as compact four-quark states or loosely bound meson molecules. In the present work we analyze the Z c (′)→ η c ρ decay using both approaches. Such channel might provide useful insights on the nature of the Z c (′), helping discriminating between the two different models.