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Probabilities in nonorthogonal bases: Four-quark systems

AuthorsVijande, Javier ; Valcarce, A.
Issue Date22-Sep-2009
PublisherAmerican Physical Society
CitationPhysical Review - Section C - Nuclear Physics 80 (3): 035204 (2009)
AbstractFour-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
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevC.80.035204
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