Changes

Consider the t-channel production of a resonance from the photon and reggeon in the reflectivity basis, consisting of plane-wave states constructed to be eigenstates of the reflectivity operator.  This turns out in the case of the photon to correspond to the usual linear polarization basis |x> and |y>.  Let the x (y) linear polarization states be denoted as ε=- (ε=+).

Consider the t-channel production of a resonance from the photon and reggeon in the reflectivity basis, consisting of plane-wave states constructed to be eigenstates of the reflectivity operator.  This turns out in the case of the photon to correspond to the usual linear polarization basis |x> and |y>.  Let the x (y) linear polarization states be denoted as ε=- (ε=+).

:<math>|\epsilon\rangle = \sqrt{\frac{-\epsilon}{2}} \left( \left|1\; -1\right\rangle +\epsilon \left|1\; +1\right\rangle \right)</math>

:<math>|\varepsilon\rangle = \sqrt{\frac{-\varepsilon}{2}} \left( \left|1\; -1\right\rangle +\varepsilon \left|1\; +1\right\rangle \right)</math>

:<math>\mathbb{R}|\epsilon\rangle = \epsilon |\epsilon\rangle </math>

:<math>\mathbb{R}|\varepsilon\rangle = \varepsilon |\varepsilon\rangle </math>

The strong interaction Hamiltonian respects reflectivity, so the production operator ''V'' should commute with ''R''.

The strong interaction Hamiltonian respects reflectivity, so the production operator ''V'' should commute with ''R''.