well we know that quarks are the smallest particles but what if there are things smaller than that I think it is possible to see if there is one smaller thing
There are six types of quarks, known as flavors: up, down, charm, strange, top, and bottom.[4] Up and down quarks have the lowest masses of all quarks. The heavier quarks rapidly change into up and down quarks through a process of particle decay: the transformation from a higher mass state to a lower mass state. Because of this, up and down quarks are generally stable and the most common in the universe, whereas charm, strange, top, and bottom quarks can only be produced in high energy collisions (such as those involving cosmic rays and in particle accelerators). ~ wikepedia the free encyclopedia
so what if one of those types of heavier masses have something smaller in them like "subquarks" or "milliquarks" ?