Positron and electron (particle and anti-particle) can annihilate in collision turning into electromagnetic radiation.
正电子和电子(粒子和反粒子)在对撞中会发生湮灭，并产生电磁辐射。
2
One way to create such short bursts of gamma rays is through the collision — and subsequent annihilation, as the mass of those particles converts into energy — of an electron and a positron.
制造伽马射线短脉冲的一种方法，是电子与正电子的碰撞——之后的湮灭，使粒子的质量转化为能量。
3
Positron or electron-atom collision theory is a main and fundamental area of atomic and molecular physics.