# What happens when matter and antimatter collide?

##### 1 Answer

May 29, 2018

Particle annihilation occurs and energy is released, typically as gamma radiation.

An example is an **electron-positron annihilation**:

(Electron Zitterbewegung basically means a local fluctuation of the electron position.)

When these collide, each particle has mass

#""_(-1)^(0) e + ""_(1)^(0) e -> 2""_(0)^(0) gamma#

The energy released is

#E = 2m_ec^2 = 2 cdot 9.10938356 xx 10^(-31) "kg" cdot (2.99792458 xx 10^8 "m/s")^2#

#= 1.64 xx 10^(-13) "J"#

or about