Partial Wave Expansion
In the partial wave expansion the scattering amplitude is represented as a sum over the partial waves,
where is the partial amplitude and is the Legendre polynomial.
The partial amplitude can be expressed via the S-matrix element and the scattering phase as
Read more about this topic: Scattering Amplitude
Famous quotes containing the words partial, wave and/or expansion:
“You must not be partial in judging: hear out the small and the great alike; you shall not be intimidated by anyone, for the judgment is God’s.”
—Bible: Hebrew, Deuteronomy 1:17.
“I don’t know a great deal about life in Washington for women—I spent a summer there once working in the White House, and my main memories of the experience have to do with a very bad permanent wave I have always been convinced kept me from having a meaningful relationship with President Kennedy ...”
—Nora Ephron (b. 1941)
“The fundamental steps of expansion that will open a person, over time, to the full flowering of his or her individuality are the same for both genders. But men and women are rarely in the same place struggling with the same questions at the same age.”
—Gail Sheehy (20th century)