A high-energy gamma-ray photon of wavelength 1.25 × 10-15 m interacts with a heavy nucleus to undergo pair production, creating an exotic charged particle and its antiparticle. If the produced particles have zero kinetic energy, what is the rest mass of the exotic particle?
8.84×10−28 kg8.84 \times 10^{-28}\text{ kg}8.84×10−28 kg
1.77×10−27 kg1.77 \times 10^{-27}\text{ kg}1.77×10−27 kg
3.54×10−27 kg3.54 \times 10^{-27}\text{ kg}3.54×10−27 kg
7.96×10−11 kg7.96 \times 10^{-11}\text{ kg}7.96×10−11 kg
