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Pion-assisted N Δ and Δ Δ dibaryons, and beyond

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Abstract

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

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  1. Racah Institute of Physics, The Hebrew University, Jerusalem, 91904, Israel

    Avraham Gal

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  1. Avraham Gal
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Correspondence to Avraham Gal.

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Proceedings of the International Conference on Exotic Atoms and Related Topics (EXA 2014), Vienna, Austria, 15-19 September 2014

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Gal, A. Pion-assisted N Δ and Δ Δ dibaryons, and beyond. Hyperfine Interact 234, 63–70 (2015). https://doi.org/10.1007/s10751-015-1133-0

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