Gell-Mann–Nishijima formula

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The Gell-Mann–Nishijima formula relates the baryon number B, the strangeness S, the isospin I_z of hadrons to the charge Q. It is given as:

Originally, this equation was based on empirical experiments. It is now understood as a result of the Quark model. In particular, the electric charge Q of a particle is related to its isospin I_z and its hypercharge Y via the relation:

[edit] References

Introduction to Elementary Particles by David Griffiths, Wiley

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• This page was last modified 14:44, 26 March 2007 by Anonymous user(s) of Wikipedia. Based on work by Wikipedia user(s) Maliz, HEL, STBot, Bkell, Tone, Reyk, Pcd72 and Hwasungmars.
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