Changes

It might be useful at some point to do a global fit to the data from all s,t bins.  In such a case, it is useful to recall the expected behavior in high-energy peripheral production given by Regge theory.

It might be useful at some point to do a global fit to the data from all s,t bins.  In such a case, it is useful to recall the expected behavior in high-energy peripheral production given by Regge theory.

:<math>

:<math>

\sigma \sim s^{\alpha_R-1} e^{bt}

\sigma \sim s^{\alpha_R-1} e^{b_Rt}

</math>

</math>

where <math>\alpha_R</math> is the intercept of the Regge trajectory for exchange particle ''R'', and b is the forward t-slope parameter for exchange trajectory ''R'' at this value of ''s''.

where <math>\alpha_R</math> is the intercept of the Regge trajectory for exchange particle ''R'', and ''b_R'' is the forward t-slope parameter for exchange trajectory ''R'' at this value of ''s''.  Appending these factors to the above expression for the differential cross section would allow data from all bins in ''s'' and ''t'' to be fitted in a single global fit.

=== Summing over polarizations ===

=== Summing over polarizations ===