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most citedMixings of 4-quark components in light non-singlet scalar mesons in QCD sum rules

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nucl-th2003

A practical approach to the problem of the missing imaginary part of the handbag diagram in the confined Bethe-Salpeter framework

Noriyoshi Ishii

In the confined Bethe-Salpeter (BS) methods, the quark propagator is an entire function. Hence, the imaginary part of the handbag diagram disappears, leading to a problem of the va…