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(← Created page with 'The SanfordWang parameterisation is a an empirical formula used to model the production of pions in nuclear interaction of the form p+A→<math>\pi^+</math>+X...') 

Its formula for the doubledifferential [[crosssection]] with respect to momentum (p) and solid angle (<math>\Omega</math>) is as follows.
<math>\frac{d^2\sigma(p+A\rightarrow \pi^+ + X)}{dpd\Omega}(p,\theta) =
<math>c_1 p^{c_2} \left(1\frac{p}{p_{beam}}\right)\exp\left[c_3\frac{p^{c_4}}{p_{beam}^{c_5}}c_6\theta(pc_7 p_{beam} (\cos\theta)^{c_8})\right]</math>
Where p and <math>\theta</math> are the momentum of the outgoing pion and its angle from the direction of the incident proton.

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