# Thermonuclear fusion in the Sun

## Homework Statement

Our present theory of the sun and the mechanism of thermonuclear fusion inside it predicts that the following reactions occur in the sun.
1H + 1H --> 2H + antielectron + neutrino
1H + 1H --> 2H + antielectron + neutrino
electron + antielectron --> photon + photon
electron + antielectron --> photon + photon
2H + 1H --> 3He + photon
2H + 1H --> 3He + photon
3He + 3He --> 4He + 1H+ 1H

A problem arises in this theory due to one of its calculated count of something not matching with the observational counting. So what is that ‘something’ and what is the relation between the prediction and observation (i.e. greater or smaller)?

## Homework Equations

The overall fusion reaction
4 1H + 2 e --> 4He + 2 neutrinos + 6 photons