This force is a residuum of the strong interaction, which binds quarks into nucleons at an even smaller level of distance.
In these, gluons that bind quarks together confer most of the particle mass.
QCD is the thing which binds quarks together (using gluons) and holds protons together, and holds protons and neutron together inside atomic nuclei.
Scientists wanted to run RHIC for another two weeks for an experiment that they hoped would uncover the charge of a gluon, the force carrier that binds quarks together.
Carried by gluons, it binds quarks into particles like protons and neutrons.
The strong force binds quarks together to create protons and neutrons, which collectively form the nuclei of atoms.
The string revolution had its roots in a quixotic effort in the 1970's to understand the so-called "strong" force that binds quarks into particles like protons and neutrons.
Like these two particles, the gluon transmits a force between other particles: in this case, the strong nuclear force that binds quarks within protons and neutrons.
The residual strong force is a minor residuum of the strong interaction which binds quarks together to form protons and neutrons.
As such, the residual strong interaction obeys a quite different distance-dependent behavior between nucleons, from when it is acting to bind quarks within nucleons.