SCENARIO A

In this model the axigluon decays to color octet scalars, which we called pions in the UFO implementation. The pion then decays to a u
ubar pair.

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PARAMETERS:
(all the parameters are explicitly defined in our paper 1209.6375)

gaxi: coupling of the axigluon to the light quarks, corresponds to $g_A$ in our paper. The couplings to heavy quarks are all determined once this is fixed by the relations
described in appendix A of our paper. This is also true for the coupling of heavy quarks to the pion.

Lambda: scale that determines the dimension 5 operator controlling the pion decay to gluons. Corresponds to $\Lambda$ in our paper$.

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HOW TO GENERATE THE FULL DECAY CHAIN

generate p p > axi axi, ( axi > pion pion, pion > g g )