Fractional-charge hadrons and leptons to tell the Standard Model group apart

Rodrigo Alonso, Despoina Dimakou, Mia West

The gauge group of strong and electroweak interactions in Nature could be any of the four that share the same Lie algebra, $SU(3{)}_c\times SU(2{)}_L\times U(1{)}_Y/Z_p\equiv G_p$ with $…