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On the miracle of the Coleman-Glashow and other baryon mass formulas

G. Dillon·G. Morpurgo
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Abstract

Due to a new measurement of the Xi(0) mass,the Coleman-Glashow formula for the baryon octet e.m. masses (derived using unbroken SU(3) is satisfied to an extraordinary level of precision.The same unexpected precision exists for the Gell-Mann Okubo formula and for its octet-decuplet extension (G.Morpurgo,Phys.Rev.Lett. 68(1992)139).We show that the old question "why do they work so well?" is now answered by the general parameterization method.

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G. Dillon, G. Morpurgo. 2000-04-20. On the miracle of the Coleman-Glashow and other baryon mass formulas. https://doi.org/10.1016/s0370-2693(00)00480-9

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