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AP Physics 2
15.6 Compton Scattering
15.1 Quantum Theory and Wave-Particle Duality
AdvancedMCQDrawing RepresentationsMathematicalConceptual22k
A schematic diagram of a Compton collision. On the left, a wavy arrow labeled \vec{p}_0 points horizontally to the right along a dashed horizontal reference line labeled +x. The arrow points toward a solid circular dot representing an electron labeled e^-. To the right of the dot, the dashed horizontal reference line continues. A wavy arrow labeled \vec{p}_\gamma extends upward and to the right from the dot at an angle \theta relative to the horizontal line. A straight arrow labeled \vec{p}_e extends downward and to the right from the dot at an angle \phi relative to the horizontal line. No other labels, lines, text, or axes appear.
Collision between an incident photon and an initially stationary electron.
An incident photon with momentum \(\vec{p}_0\) traveling in the \(+x\)-direction collides with a stationary electron. After the collision, the scattered photon moves with momentum \(\vec{p}_\gamma\) at an angle \(\theta\) above the \(+x\)-axis, and the electron recoils with momentum \(\vec{p}_e\) at an angle \(\phi\) below the \(+x\)-axis. Which of the following vector diagrams correctly represents the relationship between the momentum vectors for this system?

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