A New Interpretation of the Observed Heavy Baryons

Details A New Interpretation of the Observed Heavy Baryons A New Interpretation of the Observed Heavy Baryons

1996-03-22

arxiv.org/abs/hep-ph/9603389v2

Phys.Rev.Lett. 77 (1996) 223-226

Physics

High Energy Physics

High Energy Physics - Phenomenology

REVTeX, 7 pages. This is the final version to appear in Physical Review Letters. Two typos in Eq. (1) have been fixed and seve

Scientific paper

10.1103/PhysRevLett.77.223

I suggest that the conventional assignment of quantum numbers to the observed charm and bottom baryons is not correct, as these assignments imply large violation of the heavy spin-flavor and light $SU(3)$ symmetries. I propose an alternative interpretation of the observed states, in which the symmetries are preserved. If these novel assignments are right, there is a new state with mass approximately 2380~MeV which decays to $\Lambda_c+\gamma$, and another with mass approximately 5760~MeV which decays to $\Lambda_b+\gamma$. Although such states have not been seen, neither are they excluded by current analyses.

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