Scattering amplitude

In quantum physics, the scattering amplitude is the amplitude of the outgoing spherical wave relative to the incoming plane wave in a stationary-state scattering process. The latter is described by the wavefunction

where $\mathbf{r}\equiv(x,y,z)$ is the position vector; $r\equiv|\mathbf{r}|$ ; $e^{ikz}$ is the incoming plane wave with the wavenumber $k$ along the $z$ axis; $e^{ikr}/r$ is the outgoing spherical wave; $\theta$ is the scattering angle; and $f(\theta)$ is the scattering amplitude. The dimension of the scattering amplitude is length.

单词	Scattering amplitude
释义	Scattering amplitude 英语百科 Scattering amplitude In quantum physics, the scattering amplitude is the amplitude of the outgoing spherical wave relative to the incoming plane wave in a stationary-state scattering process. The latter is described by the wavefunction where $\mathbf{r}\equiv(x,y,z)$ is the position vector; $r\equiv\|\mathbf{r}\|$ ; $e^{ikz}$ is the incoming plane wave with the wavenumber $k$ along the $z$ axis; $e^{ikr}/r$ is the outgoing spherical wave; $\theta$ is the scattering angle; and $f(\theta)$ is the scattering amplitude. The dimension of the scattering amplitude is length.
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