Mean Free Path in Particle Physics
In particle physics the concept of the mean free path is not commonly used, being replaced by the similar concept of attenuation length. In particular, for high-energy photons, which mostly interact by electron-positron pair production, the radiation length is used much like the mean free path in radiography.
Read more about this topic: Mean Free Path
Famous quotes containing the words free, path, particle and/or physics:
“The most stringent protection of free speech would not protect a man in falsely shouting fire in a theater and causing a panic.”
—Oliver Wendell Holmes, Jr. (1841–1935)
“What is the use of going right over the old track again? There is an adder in the path which your own feet have worn. You must make tracks into the Unknown.”
—Henry David Thoreau (1817–1862)
“Each particle is a microcosm, and faithfully renders the likeness of the world.”
—Ralph Waldo Emerson (1803–1882)
“The labor we delight in physics pain.”
—William Shakespeare (1564–1616)