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arXiv · 1308.6404

Novel Six-Quark Hidden-Color Dibaryon States in QCD

M. Bashkanov·Stanley J. Brodsky·H. Clement
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Abstract

The recent observation of a hadronic resonance $d^*$ in the proton-neutron system with isospin $I = 0$ and spin-parity $J^P = 3^+$ raises the possibility of producing other novel six-quark dibaryon configurations allowed by QCD. A dramatic example of an exotic six-quark color-singlet system is the charge $Q=+4$, isospin I=3, $I^z=+3$ $|uuuuuu>$ state which couples strongly to $Δ^{++}$ + $Δ^{++} .$ The width and decay properties of such six-quark resonances could be regarded as manifestations of "hidden-color" six-quark configurations, a first-principle prediction of QCD -- SU(3)-color gauge theory for the deuteron distribution amplitude. Other implications and possible future experiments are discussed.

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M. Bashkanov, Stanley J. Brodsky, H. Clement. 2013-10-18. Novel Six-Quark Hidden-Color Dibaryon States in QCD. https://doi.org/10.1016/j.physletb.2013.10.059

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