Definition: In particle physics, a boson is a type of particle that obeys the rules of Bose-Einstein statistics.omposite Bosons. 1  Mesons-Mesons are formed when two quarks bond together. 2  Since quarks are fermions and have half-integer spins, if two of them are bonded together, then the spin of the resulting particle (which is the sum of the individual spins) would be an integer, making it a boson.
Elk Grove, California. Elk Grove is a city in Sacramento County, California, located just south of the state capital of Sacramento. It is part of the SacramentoâArden-ArcadeâRoseville Metropolitan Statistical Area. As of 2015, the population of the city was estimated at 167,965.
The Districtâs very first preserveâacquired in 1916âDeer Grove is one of the premier destinations for everything from botanizing to cross-country skiing. Situated in northwestern Cook County, Deer Grove was the first preserve acquired by the Forest PreÂ­serve District, beginning with 500 acres in 1916. With its long, rich history and extensive trails, the 1,800-acre Deer Grove has attracted generations of visitors, from serious botanists to weekend joggers.