Run MadSpin without changing event weights?
Dear experts,
I'd like to use MadSpin to decay some SUSY particles in a simplified model where the branching ratio is artificially set to 100% for certain channels. I produce the un-decayed events with MadGraph, and get a reasonable cross section. When MadSpin decays the heavy states, the event weights become very small, since the decay I'm interested in happens to be suppressed given the param_card used for event generation. I then need to unfold this scale factor to get back to my simplified model after showering. This isn't the end of the world, but it's mildly annoying.
Is it possible to ask MadSpin (via a flag?) to not modify the event weights provided in the LHE file, and just provide the decay kinematics? In this case, that's all I need it for.
Thanks!
-Mike
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