Current quark

From Wikipedia, the free encyclopedia

Current quarks are also called 'naked' quarks and defined therefore as constituent quark cores (constituent quarks with no covering) of a valence quark.

If in one constituent quark the current quark is hit inside the covering with large force, it accelerates through the covering and leaves it behind. In addition, current quarks possess one asymptotic freedom within the perturbation theory described limits.

The mass of the current quarks carries the designation current quark mass.

The local term plays no more role for the description of the hadrons with the light current quarks:

Particle	Mass	(standard deviation Δx of the position measurements)
Current quark (up, down)	m(u,d) =5-10MeV	Δx =20-40fm

A description is only possible with the help of relativistic quantum mechanics.