Distribution in Angle of Protons from the Deuteron-Deuteron Reaction

The distribution in angle of the protons from the deuteron-deuteron reaction has been measured with a gas target over a range of bombarding energy from 60 to 390 Kev. The results are representable by N(θ)=1+A cos²θ in which θ is the angle which the proton's velocity makes with the direction of the deuteron beam as measured in the center-of-mass coordinate system and N(θ) is the number observed per unit solid angle at θ. The value of A is found to be markedly dependent on bombarding energy.