1.5 Neutrinos
The indeterministic electron energy in beta decay raised a requirement of new particle produced in the reaction, recalling Powell’s emulsion picture indicates this new particle should be electrically neutral, eventually led to the family of leptons.
![notes on 1.5 Neutrinos [part1]](https://physics.run/wp-content/uploads/2023/01/WCM0053.png)
![notes on 1.5 Neutrinos [part2]](https://physics.run/wp-content/uploads/2023/01/WCM0054.png)
![notes on 1.5 Neutrinos [part3]](https://physics.run/wp-content/uploads/2023/01/WCM0055.png)
![notes on 1.5 Neutrinos [part4]](https://physics.run/wp-content/uploads/2023/01/WCM0056.png)
![notes on 1.5 Neutrinos [part5]](https://physics.run/wp-content/uploads/2023/01/WCM0057.png)