TGenPhaseSpace for a daughter mass with a certain width

Dear all, I’m trying to use TGenPhaseSpace to generate the decay process: (^{12}C \rightarrow ^{8}Be^* + ^4He). The energy of the excited state of (^8Be^*) is 3.03 MeV with a width (Gamma) of 1.51 MeV. I don’t know how to use SetDecay to set the mass of (^8Be) with a certain width.

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Have you started with the documentation of the TGenPhaseSpace class? ROOT: TGenPhaseSpace Class Reference


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