The W particle—a type of charged boson that helps to mediate a nuclear force—was detected in a proton-antiproton collision inside CERN's Super Proton Synchrotron (SPS) accelerator-collider in 1982. When the particle was produced some energy that should have been there went missing, suggesting a neutrino was emitted.
There are four physical constants associated with Newton, Planck and Einstein. Could a recently discovered particle lead us to a new nuclear constant and/or a fifth physical constant? Proton and electron mass are nuclear constants. The symbols h, h bar, C and G are physical constants. So what comes after the gravitational constant nailed down by Newton? One describing the universe's expansion perhaps? Einstein was looking for and called it a cosmological constant. What repulsive force in the Higg's field between constituent parts exists? This would answer, in part, the question of dark energy, why the universe is expanding.