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\left(\frac{q_{b1}}{16\pi^2m_X}\right)
 
\left(\frac{q_{b1}}{16\pi^2m_X}\right)
 
\left(\frac{q_{\omega}}{16\pi^2m_{b1}}\right)
 
\left(\frac{q_{\omega}}{16\pi^2m_{b1}}\right)
\left(\frac{q_{\rho}}{16\pi^2m_\rho}\right)
+
\left(\frac{q_{\rho}}{16\pi^2m_\omega}\right)
\left(\frac{q_{\pi}}{16\pi^2m_\pi}\right)
+
\left(\frac{q_{\pi}}{16\pi^2m_\rho}\right)
 
</math>
 
</math>
 
where <math>k_i</math> is the beam photon momentum in the G-J frame.  The explicit kinematic factors from the initial-state flux and the density of final states for each of the decays are not factored into the T matrix so that we can make sure that it explicitly respects unitarity in each partial wave. In terms of the individual decay matrix elements introduced earlier, the T matrix element can be written as
 
where <math>k_i</math> is the beam photon momentum in the G-J frame.  The explicit kinematic factors from the initial-state flux and the density of final states for each of the decays are not factored into the T matrix so that we can make sure that it explicitly respects unitarity in each partial wave. In terms of the individual decay matrix elements introduced earlier, the T matrix element can be written as

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