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pNGBDM fix restrict card

Spyros Argyropoulos requested to merge (removed):fix_pNGB into main

For some (unknown to me) reason, the value of the DM mass in the pNDBDM model was set at 1 GeV. This caused a rule to be written in PROCESS/Source/MODEL/param_card_rule.dat which was forcing MX to be exactly 1 GeV.

Screenshot_2023-09-20_at_11.23.04 (the above file was made after changing the PDGID of the DM particle to the original one, to check if it was the new ID that we assigned (51) that was causing the issue, but it wasn't - so if one would run using the UFO on cvmfs they would get the same file as above but with 51 instead of 9000005)

If one would try to vary this parameter MG would crash with InvalidParamCard.

Changing the value in the restrict card in the model seems to fix the issue. I have also contacted Uli Haisch who made the model for confirmation.

For info: No samples have been produced with this UFO - it is still at the "commissioning" phase and we still want to do exploratory tests to understand this model better.

Edited by Spyros Argyropoulos

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