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Hyperfine Interactions

, Volume 234, Issue 1–3, pp 63–70 | Cite as

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

  • Avraham Gal
Article

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.

Keywords

Faddeev equations Nucleon-nucleon interactions Pion-baryon interactions Dibaryons 

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Racah Institute of PhysicsThe Hebrew UniversityJerusalemIsrael

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