Sharpening low-energy, standard-model tests via correlation coefficients in neutron β decay

A study of sharpening low-energy, standard-model test was performed via correlation coefficients in neutron β decay. The conserved-vector-current (CVC) hypothesis and second-class currents (SCC) were also analyzed. The results showed that the measured coefficients in neutron-decay can sharpen tests of CVC hypothesis. The correlation coefficients allows the testing of CVC and search for SCC independently.