Cyclotron frequency is the frequency at which a charged particle travels a circular path in the magnetic field. It therefore describes how many circular revolutions the particle performs per second.
The external magnetic field in which the particle moves. The motion of the particle is perpendicular to the magnetic field.
Electric charge performing a circular orbit in the magnetic field. Here, the magnitude of the charge is considered to avoid a negative cyclotron frequency.
Mass of the charged particle.
Pi is a mathematical constant and has the value: \( \pi ~=~ 3.1415926... \)