Consider a particle P described by a repetitive chain of events

$\Psi ^{\sf{P}} = \left( \sf{\Omega}_{1} , \sf{\Omega}_{2} , \sf{\Omega}_{3} \ \ldots \ \right)$

where orbital cycles are composed of $N$ quarks

$\sf{\Omega} = \left\{ \sf{q}_{1}, \sf{q}_{2} \ \ldots \ \sf{q}_{\it{N}} \right\}$

and characterized by their angular frequency $\omega$. Since all particles are supposedly made of quarks, we can define a very general expression of the **frequency** as

$\begin{align} \nu \equiv N \frac{ \omega }{ 2 \pi } \end{align}$

This generic frequency characterizes the flux of quarks associated with P. It has units like quarks-per-second. As descriptions are objectified, we speak more generally of cycles-per-second. Units are called *hertz* and abbreviated by (Hz).