Latest revision as of 17:06, 25 July 2012

Polarized Real Photons From Electrons

Virtual Photon Polarization

Longitudinal Photon Polarization

Polarization Density Matrix

Reference: N. Dombey, Rev. Mod. Phys., 41, 236 (1969)

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 =Polarized Virtual Photons From Electrons=
-<math>\epsilon= \lef [ 1 + 2 \frac{\left ( Q^2 + \nu^2\right )}{} \right ]</math>
+Virtual Photon Polarization
+<math>\epsilon= \left [ 1 + 2 \left ( 1 + \frac{\nu^2}{Q^2}\right ) \tan^2\left( \frac{\theta_e^{\prime}}{2}\right)\right ]</math>
+Longitudinal Photon Polarization
+<math>\epsilon_L= \frac{Q^2}{\nu^2}\epsilon</math>
+Polarization Density Matrix
+:<math>
+  \begin{bmatrix}
+    \frac{1}{2}(1+\epsilon) & 0 & -1 \sqrt{\frac{1}{2}\epsilon_L(1+\epsilon)}\\
+& \frac{1}{2}(1-\epsilon) & 0\\
+    -1 \sqrt{\frac{1}{2}\epsilon_L(1+\epsilon)} & 0 & \epsilon_L\\
+  \end{bmatrix}
+</math>
+Reference: N. Dombey, Rev. Mod. Phys., '''41''', 236 (1969)
 [[Forest_Classes]]