This process can occur in systems on the left side of the peak in the binding energy curve.
The volume rate at which this process occurs is proportional to the mean sigma-v. For it to occur sustainably, the product of the particle density and the confinement time must be greater than a critical value, a result known as the Lawson criterion. Muons can be used to catalyze this process by lowering the Coulomb barrier. This process can occur in systems on the left side of the peak in the binding energy curve. Mechanisms such as the CNO cycle and the proton-proton chain use this process to create alpha particles. This process occurs at temperatures too large for it to be a practical energy source, prompting the search for a "cold" variety. For 10 points, name this process that takes place in the sun in which two nuclei come together to form a larger nucleus.
The volume rate at which this process occurs is proportional to the mean sigma-v.
nuclear fusion