A chromomagnetic mechanism for the X(3872) resonance

H. Hogaasen; J.M. Richard (LPSC); P. Sorba (LAPTH)

A chromomagnetic mechanism for the X(3872) resonance

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arxiv hep-ph/0511039 v2 pith:XOGSLHP3 submitted 2005-11-04 hep-ph

H. Hogaasen , J.M. Richard (LPSC) , P. Sorba (LAPTH) This is my paper · ORCID

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abstract

The chromomagnetic interaction, with proper account for flavour-symmetry breaking, is shown to explain the mass and coupling properties of the X(3872) resonance as a $J^{PC}$ = 1$^{++}$ state consisting of a heavy quark-antiquark pair and a light one. It is crucial to introduce all the spin-colour configurations compatible with these quantum numbers and diagonalise the chromomagnetic interaction in this basis. This approach thus differs from the molecular picture $D\bar {D}*$ and from the diquark-antidiquark picture.

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$X(3872)$ and hidden charmed tetraquarks
hep-ph 2025-06 conditional novelty 4.0 of 10

A diquark-antidiquark quark model with parameters fitted to X(3872) and Tcc predicts hidden-charm tetraquark masses and tentatively assigns XYZ states.

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