The compositeness of near-threshold eigenstates with Coulomb plus short-range forces is determined solely by the Coulomb scattering length, effective range, and Bohr radius, with the Coulomb interaction qualitatively altering threshold behavior and internal structure compared to short-range cases.
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In a constituent quark model, only baryon-baryon-like configurations of the uuddss system produce near-threshold states appearing as loosely bound three-quark clusters.
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Compositeness of near-threshold eigenstates with Coulomb plus short-range interactions
The compositeness of near-threshold eigenstates with Coulomb plus short-range forces is determined solely by the Coulomb scattering length, effective range, and Bohr radius, with the Coulomb interaction qualitatively altering threshold behavior and internal structure compared to short-range cases.
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Sexaquarks and $H$ dibaryons in the $uuddss$ system: a comparison within a constituent quark model
In a constituent quark model, only baryon-baryon-like configurations of the uuddss system produce near-threshold states appearing as loosely bound three-quark clusters.