Systematic studies of $DDKK$ and $D\bar{D}K\bar{K}$ four-hadron molecules

Assuming that $D_{s 0}^{*} (2317)$ is a $D K$ molecular state with a binding energy of 45 MeV, we investigate the existence of four-hadron molecules, $D D K K$ and $D \Bar D K \Bar K$ , with the Gaussian expansion method. Their binding energies are $138 \sim 155$ MeV and $123 \sim 163$ MeV below the mass thresholds of $D D K K$ and $D \Bar D K \Bar K$ . The $D \Bar D K \Bar K$ state has a decay width of $36 \sim 54$ MeV due to the complex $K \Bar K$ interaction. Further theoretical studies of and experimental searches for such four-hadron molecules can help deepen the understanding of the nonperturbative strong interaction in a nontrivial way.

Systematic studies of $D D K K$ and $D \overset{ˉ}{D} K \overset{ˉ}{K}$ four-hadron molecules

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Systematic studies of $D D K K$ and $D \overset{ˉ}{D} K \overset{ˉ}{K}$ four-hadron molecules

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Systematic studies of DDKKDDKK and DDˉKKˉDDˉKKˉ four-hadron molecules

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Systematic studies of DDKKDDKK and DDˉKKˉDDˉKKˉ four-hadron molecules

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Systematic studies of $D D K K$ and $D \overset{ˉ}{D} K \overset{ˉ}{K}$ four-hadron molecules

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Systematic studies of $D D K K$ and $D \overset{ˉ}{D} K \overset{ˉ}{K}$ four-hadron molecules

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AI智能校验