Spectroscopy of $\rm{q}^3\bar{\rm{q}}^3$-States in Quark Model and Baryon-Antibaryon Enhancements

Ding, Gui-Jun; Ping, Jialun; Yan, Mu-Lin

Spectroscopy of $\rm{q}^3\bar{\rm{q}}^3$-States in Quark Model and Baryon-Antibaryon Enhancements

Authors

Ding, Gui-Jun

Ping, Jialun

Yan, Mu-Lin

Description

We study the mass spectrum of the $\rm{q}^3\bar{\rm{q}}^3$ mesons both from the quark model with triquark correlations and from common quark model with colormagnetic interactions and with relative S-waves between quarks. Two cluster configurations $(\rm{q}^3)-(\bar{\rm{q}}^3)$ and $(\rm{q}^2\bar{\rm{q}})-(\rm{q}\bar{\rm{q}}^2)$ are considered. In the spectrum we find rather stable states which have the same quantum number with particle resonances which are corresponding to the $p\bar{p}$ enhancement, $p\barΛ$ enhancement and $Λ\barΛ$ enhancement with spin-$\mathbf{0}$ or $\mathbf{1}$. This imply these enhancements are NOT experimental artifacts. The color-spin-flavor structures of $p\bar{p}$, $p\barΛ$, and $Λ\barΛ$ enhancements are revealed. The existence of spin-$\mathbf{1}$ $Λ\barΛ, p\barΛ, p\bar{p}$ enhancements is predicted.
45 pages, 5 figures