期刊
PHYSICAL REVIEW C
卷 80, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.80.035204
关键词
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资金
- Ministerio de Ciencia y Tecnologia [FPA2007-65748]
- EU FEDER
- Junta de Castilla y Leon [SA016A17, GR12]
Four-quark states may exist as colorless meson-meson molecules or compact systems with two-body colored components. We derive an analytical procedure to expand an arbitrary four-quark wave function in terms of nonorthogonal color singlet-singlet vectors. Using this expansion we develop the necessary formalism to evaluate the probability of physical components with an arbitrary four-quark wave function. Its application to characterize bound and unbound four-quark states as meson-meson, molecular, or compact systems is discussed
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