• Scattering of neutrons on $\alpha$-particles in three-dimensional space

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      https://www.ias.ac.in/article/fulltext/pram/093/04/0061

    • Keywords

       

      Neutron energy; $\alpha$ scattering; three-dimensional space

    • Abstract

       

      This letter demonstrates that there are some mistakes in the article of Roshan et al (Pramana – J. Phys. 90(3): 30, 2018) in dealing with the scattering of neutrons on $\alpha$-particles in three-dimensional space. In fact, there is no one-to-one correspondence between the incident neutron energy and the scattering angle of the α-particle even if they have definite velocities before scattering. Instead, the situation is complex, and all the scattered $\alpha$-particles will emit in a cone, which is called the velocity cone. At each scattering angle, which is smaller than the apex angle of the velocity cone, there are two groups of $\alpha$-particles with different kinetic energies.

    • Author Affiliations

       

      GUOHUI ZHANG1 XUECHAO ZHANG2

      1. School of Physics, Peking University, Beijing 100871, People’s Republic of China
      2. School of Basic Medical Sciences, Peking University, Beijing 100191, People’s Republic of China
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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