Neutron-Proton Scattering and the Disintegration of Deuterium by Deuterons

作者：T. W. Bonner · 发表于：Physical Review · 年份：1937 · DOI：10.1103/physrev.52.685 · 被引用次数：34 · 研究领域：Quantum, superfluid, helium dynamics、Atomic and Subatomic Physics Research、Nuclear Physics and Applications

The angular distribution of the scattering of neutrons by protons has been observed by the method of recoil protons in a cloud chamber. The source of neutrons was the reaction $_{1}\mathrm{H}^{2}+_{1}\mathrm{H}^{2}\ensuremath{\rightarrow}_{2}\mathrm{He}^{3}+_{0}n^{1}+{Q}_{1}$ which gave 2.6 Mev neutrons at right angles to the bombarding deuterons. The value of ${Q}_{1}$ was found to be 3.36\ifmmode\pm\else\textpm\fi{}0.20 Mev. The recoil proton distribution showed a maximum at 45\ifmmode^\circ\else\textdegree\fi{} as measured in laboratory coordinates. The distribution agreed with the theoretical one which predicts a spherical symmetry with respect to the center of mass of the moving system.