English

Novel Six-Quark Hidden-Color Dibaryon States in QCD

High Energy Physics - Phenomenology 2015-06-17 v3 Nuclear Theory

Abstract

The recent observation of a hadronic resonance dd^* in the proton-neutron system with isospin I=0I = 0 and spin-parity JP=3+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=+4Q=+4, isospin I=3, Iz=+3I^z=+3 uuuuuu>|uuuuuu> state which couples strongly to Δ++\Delta^{++} + Δ++.\Delta^{++} . 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.

Keywords

Cite

@article{arxiv.1308.6404,
  title  = {Novel Six-Quark Hidden-Color Dibaryon States in QCD},
  author = {M. Bashkanov and Stanley J. Brodsky and H. Clement},
  journal= {arXiv preprint arXiv:1308.6404},
  year   = {2015}
}