Auto calculation of Higgs width during scan
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
MadDM |
New
|
Undecided
|
Unassigned |
Bug Description
Hi everyone,
I am running the Singlet scalar model with an Higgs portal and I notice a possible issue when running scan options in the param_card.dat.
In particular when the width of the Higgs boson is set to 'auto' in the param_card.dat as:
DECAY 25 auto # WH
the width is calculated for the coupling parameters of the model. However, if there is a scan in one of the parameters, the Higgs width is not recalculated but remains the one of the first value of the scan.
Let's make an example.
If I am doing a scan on lambdahs as:
Block scouplings
1 scan1:[
2 1.000000e-01 # lambdas
The Higgs width is first correctly calculated for lambdahs=0.00001 but it is used also for the other values of the coupling parameters. This makes the value of the decay width wrong when the lambdahs is much different with respect to the first one of the scan.
So the problem is that the param_card.dat is not completely reset to the initial form when changing the parameter over which there is the scan.