| 释义 |
pionization Nuclear Physics.|paɪɒnaɪˈzeɪʃən|
[f. pion + -ization.]
The production of numerous low-energy pions by the collision of two high-energy nucleons.
1964Mat.-Fys. Meddelelser K. Danske Vidensk. Selskab XXXIII. xv. 8 The calculation of the relative importance in the cosmic radiation of mesons generated by nucleons in pionization and mesons generated in the deexcitation of baryon states is straightforward on the basis of this model. 1974Frauenfelder & Henley Subatomic Physics xii. 343 At ultrahigh energies, the interaction of two nucleons can indeed be a spectacular event... Most of the secondaries are pions. In the c.m. of the colliding protons, nearly all the pions have small momenta. The formation of such a pion cloud is called pionization. |