M-Theory and Hypercharge
arXiv:hep-th/9908129 · doi:10.1088/1126-6708/1999/09/021
Abstract
We discuss the possibility that the electro-weak and strong interactions arise as the low energy effective description of branes in M-theory. As a step towards constructing such a model we show how one can naturally obtain SU(N_1)\times SU(N_2)\times U(1) gauge theories from branes, including matter in the bi-fundamental representation of SU(N_1)\times SU(N_2) which are fractionally charged under U(1).
29 pages Phyzzx. Two figures