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New paths through the desert: Improving on minimal SU(5)

Journal Article · · Phys. Rev. D; (United States)

We present a model with a particle spectrum identical to minimal SU(5) below the SU(5)-breaking mass scale M/sub X/, where the gauge group is the standard SU/sub C/(3) x (SU/sub L/(2) x U(1) /sub GWS/ (GWS = Glashow-Weinberg-Salam). However, unlike minimal SU(5), a nonstandard hypercharge embedding into E/sub 6/ allows our model to have M/sub X/ large enough to agree with present limits on proton decay and simultaneously have a weak mixing angle in agreement with the experimental value extracted from the W and Z/sup 0/ masses.

Research Organization:
Department of Physics, Purdue University, West Lafayette, Indiana 47907
OSTI ID:
6044596
Journal Information:
Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 30:9; ISSN PRVDA
Country of Publication:
United States
Language:
English