Hi I am just a newb with interest in physics. Maybe someone can help me out: Is there any theory that explains the strong force or bonding together of protons and neutrons in the center of the atom with a vortex in the center of the atom similar to a black holes vortex. And theorizes that this is what actually holds protons and neutrons together instead of gluons. Because I just don´t think a Gluon explains this strong force satisfactorily despite the experiments where they saw behavior which can only be explained by the gluon. The gluon itself has never been observed or has it?