Quarks and gluons are color-charged particles. Just as electrically-charged particles interact by exchanging photons in electromagnetic interactions, color-charged particles exchange gluons in strong interactions. When two quarks are close to one another, they exchange gluons and create a very strong color force field that binds the quarks together. The force field gets stronger as the quarks get further apart. Quarks constantly change their color charges as they exchange gluons with other quarks.
How does colour charge work?
There
are three color charges and three corresponding anticolor or complementary
color charges. Each quark has one of the three color charges and each
antiquark
has one of the three anticolor charges.
Quarks
carry a colour
Anti
Quarks carry an anti colour
Gluons carry a colour and anti colour
A
mix of red, green,
and blue light yields white
light, In a baryon a combination of "red,"
"green,"
and "blue" color charges is color neutral,
In an antibaryon "antired,""antigreen," and "antiblue"
is also color neutral. Mesons are color neutral because they carry combinations
such as "red"
and "antired." "Color charge" has nothing
to do with the visible colors, it is just a
convenient naming convention for a mathematical system physicists
developed to explain their observations about quarks in hadrons.
