Definition
In particle physics, a 'truth quark' (also known as a top quark) is a fundamental particle and the most massive of all observed elementary particles. It's a type of quark, which are the basic building blocks of matter. Unlike the lighter quarks, the top quark is incredibly heavy, almost like comparing a sumo wrestler to a featherweight boxer. It decays extremely quickly into other particles. Understanding the top quark helps scientists test the Standard Model, our current best theory of how the universe works. Think of it as the VIP of the quark world, attracting lots of attention.