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• CommentRowNumber1.
• CommentAuthorUrs
• CommentTimeMar 14th 2020

added a table (here) showing the first-generation mesons as irreps of the spacetime $\times$ isospin symmetry group

• CommentRowNumber2.
• CommentAuthorUrs
• CommentTimeMar 20th 2020

generalized the table of mesons-as-irreps from $Spin(3,1)$ to $Pin^+(3,1)$, to bring out the pseudo-scalar nature of the pion, and the pseudo-vector nature of the $\rho$-meson and the $\omega$-meson

• CommentRowNumber3.
• CommentAuthorUrs
• CommentTimeMar 21st 2020

Origin of effective field theory of mesons in nuclear physics, via hidden local gauge symmetry:

• CommentRowNumber4.
• CommentAuthorUrs
• CommentTimeApr 9th 2020

have expanded the representation-theoretic table of mesons (here), now including also the sigma-meson (in parenthesis) and then the strange mesons.

• CommentRowNumber5.
• CommentAuthorUrs
• CommentTimeApr 25th 2020