# Lepton Number as the Fourth Color

@article{Pati1974LeptonNA, title={Lepton Number as the Fourth Color}, author={Jogesh C. Pati and A. Salam}, journal={Physical Review D}, year={1974}, volume={10}, pages={275-289} }

Universal strong, weak, and electromagnetic interactions of leptons and hadrons are generated by gauging a non-Abelian renormalizable anomaly-free subgroup of the fundamental symmetry structure $\mathrm{SU}{(4)}_{L}\ifmmode\times\else\texttimes\fi{}\mathrm{SU}{(4)}_{R}\ifmmode\times\else\texttimes\fi{}\mathrm{SU}({4}^{\ensuremath{'}})$, which unites three quartets of "colored" baryonic quarks and the quartet of known leptons into 16-folds of chiral fermionic multiplets, with lepton number… Expand

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ii) classification symmetry of hadrons being limited to SU(3) x SU(3') and no higherunpublished)], {iii) saturation properties of hadrons treated as bound states of qqq and qq

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Of course, if one could leave 6', ~, quarks massless [a possibility which is attractive for chiral SU(2}I & SU(2)R symmetry], the &p&6X& interaction would be p5-invariant

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we mean U or linear combinations of U and Vo depending upon the complexion of the physical particles (see footnote 20)

- we mean U or linear combinations of U and Vo depending upon the complexion of the physical particles (see footnote 20)

~Note that strong-interaction quark-quark scattering amplitudes arising due to V(8) exchange are of order (f 2/f 2c ) — (1/c2)

- ~Note that strong-interaction quark-quark scattering amplitudes arising due to V(8) exchange are of order (f 2/f 2c ) — (1/c2)