Gamow-Teller transitions - a key to open a jewel box of nuclear physics

The Gamow-Teller (GT) transitions, due to the simplicity of the στ operator that causes them, are more sensitive to the nuclear structures of initial and final states than any other transitions. A high energy-resolution achieved in the (3He, t) charge-exchange reaction at 0◦ and at an intermediate beam energy of 140 MeV/nucleon started to show the details of fine structures and thus various unique features of GT transitions