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arXiv · 1412.0198

Pion-assisted $NΔ$ and $ΔΔ$ dibaryons, and beyond

Avraham Gal
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Abstract

Experimental evidence for $I(J^P)=0(3^+)$ $ΔΔ$ dibaryon ${\cal D}_{03}(2370)$ has been presented recently by the WASA-at-COSY Collaboration. Here I review new hadronic-basis Faddeev calculations of $L=0$ nonstrange pion-assisted $NΔ$ and $ΔΔ$ dibaryon candidates. These calculations are so far the only ones to reproduce the relatively small ${\cal D}_{03}(2370)$ width of 70--80 MeV. Predictions are also given for the location and width of ${\cal D}_{30}$, the $I(J^P)=3(0^+)$ exotic partner of ${\cal D}_{03}(2370)$. Extensions to strangeness ${\cal S}=-1$ dibaryons are briefly discussed.

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Avraham Gal. 2015-02-26. Pion-assisted $NΔ$ and $ΔΔ$ dibaryons, and beyond. https://doi.org/10.1007/s10751-015-1133-0

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