Werner Heisenberg calculated that the force exerted by particles thought to drive this interaction went as the negative fifth power of radius, and differed from experimental values by a factor of one million. That “tentative” theory of this interaction, which predicts a cross section proportional to the square of energy in a four-fermion contact mechanism, was posited by Enrico Fermi. Measurements (-5[1])of gamma ray anisotropy served as a control in an experiment testing a prediction about this interaction made by Lee and Yang. Cooled (*) cobalt-60 atoms in a polarizing magnetic (10[1])field were found to emit electrons asymmetrically in an experiment testing this force conducted by Chien-Shiung Wu. (10[1])This parity-violating force is mediated by W and Z (10[1])bosons. (10[2])For 10 points, name this fundamental force responsible for beta decay. (10[1])■END■ (10[2])