All observed elementary particles are either fermions or bosons. The observed elementary bosons are all gauge bosons: photons, W and Z bosons, gluons, and the Higgs boson. 1  Photons are the force carriers of the electromagnetic field.2  W and Z bosons are the force carriers which mediate the weak force.he observed elementary bosons are all gauge bosons: photons, W and Z bosons, gluons, and the Higgs boson. 1  Photons are the force carriers of the electromagnetic field. 2  W and Z bosons are the force carriers which mediate the weak force.
Elk Mound is a village in Dunn County, Wisconsin, United States. The population was 878 at the 2010 census. The village is surrounded by the Town of Elk Mound.
Public library service in Mound and the surrounding communities began in 1915, when Minneapolis Public Library made a small book collection available to area residents. In 1922, Hennepin County Library assumed responsibility for the library in Mound, and it has since operated out of various community locations. The current Westonka Library opened in 1972. It is located in a scenic setting on a wooded site near Lake Minnetonka.