Date of this Version
Nuclear Physics B
The recent demise of certain global unbroken symmetry generators in the presence of a grand unified magnetic monopole leads us to consider more carefully the notion of charges associated with gauge symmetries. It turns out that global transformations associated with the generators of the gauge group, and their charges, make sense only for extended systems which are sufficiently localized. GUT monopoles fail this criterion. Detailed consideration of the monopole-antimonopole system helps remove apparent paradoxes related to the chromodyon excitations of a single monopole and agrees with the previous result that some, but not all, of the states naively expected do exist. The remaining states ns needed to fill out color multiplets are spread throughout space; they are recovered as long-lived excitations when an antimonopole is brought in from infinity.
Nelson, P. C., & Coleman, S. (1984). What Becomes of Global Color. Nuclear Physics B, 237 (1), 1-31. http://dx.doi.org/10.1016/0550-3213(84)90013-0
Date Posted: 01 May 2017
This document has been peer reviewed.