sign. If the last digit is odd, you will need to provide and discuss the Feynman diagram for the 3+ decay, and sign = +. 7. The kinetic energies (ED, E) and momenta (pp, pe-) of the daughter nucleus 14N (mass mp) and electron (mass m,-) produced in the 8-decay process of 14C can be related as follows: ED 2mp Pe- 2me- (a) Using the formulae above, calculate what is the largest possible fraction of energy released in the 8-decay of 14C to 14N that is carried away by the electron e as kinetic energy. Assume that the parent nucleus is initially at rest. State any other assumptions used. The mass of the electron is 0.510 MeV/c2, and the atomic mass unit is 931.5 MeV/c². [7 marks]