Physics (AS & A Level) · May / June 2016 · Paper 13 · Question 38

A nitrogen-13 nucleus $^{13}_{7}\text{N}$ undergoes beta decay. In the equations below, ν and $\bar{\nu}$ represent a neutrino and antineutrino respectively and γ represents a photon of gamma radiation. Which equation represents this decay?

1. A$^{13}_{7}\text{N} \rightarrow {}^{13}_{6}\text{C} + \beta^- + \bar{\nu} + \gamma$
2. B$^{13}_{7}\text{N} \rightarrow {}^{13}_{6}\text{C} + \beta^- + \nu + \gamma$
3. C$^{13}_{7}\text{N} \rightarrow {}^{13}_{6}\text{C} + \beta^+ + \bar{\nu} + \gamma$
4. D$^{13}_{7}\text{N} \rightarrow {}^{13}_{6}\text{C} + \beta^+ + \nu + \gamma$

As printed in the paper