Compton 1923 (Nobel 1927): X-ray photons of wavelength λ scattered by free electrons at rest at angle θ from the incoming direction have shifted wavelength λ' with Δλ = λ' − λ = (h/m_ec)(1 − cos θ) = λ_C·(1 − cos θ), where λ_C = h/(m_ec) ≈…
Compton 1923 (Nobel 1927): X-ray photons of wavelength λ scattered by free electrons at rest at angle θ from the incoming direction have shifted wavelength λ' with Δλ = λ' − λ = (h/m_ec)(1 − cos θ) = λ_C·(1 − cos θ), where λ_C = h/(m_ec) ≈…