New particles in reco-level

Hi Saumyen,

The reason of the issue is that in the input hepmc file, there is a particle with a PDG code 6000005 that Delphes does not know. In order to have delphes properly running, one needs to indicate it the properties of this particle.

> 1. Added these lines under ECAL and HCAL (under 'SimpleCalorimeter' module)
> add EnergyFraction {6000005} {0.0}
This is incorrect. One needs to provide information on what the particle does both int the hcal and ecal:
  add EnergyFraction {6000005} {0.0 0.0}

> 2. Added these lines under Neutrino Filter (under 'PdgCodeFilter' module)
> add PdgCode {6000005}
> add PdgCode {-6000005}
This is correct.

> Another question is that regarding using a particular detector card. How can I use the detector card for the ILD?
MadAnalysis always asks you whether you want to modify the detector card. You can then chose any existing card (atlas or cms) and supersede them with the ILD one.

Cheers,

Benjamin

Hi Benjamin,

Thanks a lot for your response.

>The reason of the issue is that in the input hepmc file, there is a particle with a PDG code 6000005 that Delphes does not know. In >order to have delphes properly running, one needs to indicate it the properties of this particle.

What else do I need to modify other than adding those lines under ECAL, HCAL and Neutrino Filter?

>This is incorrect. One needs to provide information on what the particle does both in the hcal and ecal:
> add EnergyFraction {6000005} {0.0 0.0}

I added that line both under ECAL as well as HCAL. I thought that I can provide the information on what to do in the ECAL and HACAL. So, in both the cases I have to enter 'add EnergyFraction {6000005} {0.0 0.0}'!

>This is correct.

OK!

>MadAnalysis always asks you whether you want to modify the detector card. You can then chose any existing card (atlas or cms) >and supersede them with the ILD one.
Yeah, this I saw. I did once too. But then the Delphes didn't run and also this is very tiring. Because starting from the tracking efficiencies, the resolution formula a lot of things are to be changed and doing that in the editor like 'vim' is tiring. So, I was looking for alternatives. Ok, let me try again.

But I had another confusion regarding the stacking method. What actually happens when we choose the method to be 'stack' or 'superimpose'. I mean, I went through the manual. It says "the different curves can be stacked (stack, default),
superimposed (superimpose) ". But what is it meant by 'stacked' and 'superimposed'. I am asking this because I generated histograms for the same datasets and same observable with choices 'stack' and 'superimpose, respectively. In both cases, the nature of the histograms was the same. But the values are not. I had one background and one signal. With the choice 'stack' I found the signal to dominate the background and with the peak value ( for a certain observable) at a little above 1 while choosing it 'superimpose' the background dominates and the signal peak decreases to below 1. In the bothe values for the background remains the same. This character is there for all the observable. So, I wanted to know what actually happens when we choose 'stack' or 'superimpose' as the stacking method?

Regards,
Saumyen

Hi,

> What else do I need to modify other than adding those lines under ECAL,
> HCAL and Neutrino Filter?
Only what has been said in the previous message..

> I added that line both under ECAL as well as HCAL. I thought that I can
> provide the information on what to do in the ECAL and HACAL. So, in both
> the cases I have to enter 'add EnergyFraction {6000005} {0.0 0.0}'!
Yes

>
>> MadAnalysis always asks you whether you want to modify the detector card. You can then chose any existing card (atlas or cms) >and supersede them with the ILD one.
> Yeah, this I saw. I did once too. But then the Delphes didn't run and also this is very tiring.
This is maybe because your card is incorrect. Have you try it externally (from tools/delphes)?

> Because starting from the tracking efficiencies, the resolution formula a lot of things are to be changed and doing that in the editor like 'vim' is tiring. So, I was looking for alternatives. Ok, let me try again.
Well, I won't do your work for you :)

> But I had another confusion regarding the stacking method. What actually happens when we choose the method to be 'stack' or 'superimpose'. I mean, I went through the manual. It says "the different curves can be stacked (stack, default),
> superimposed (superimpose) ". But what is it meant by 'stacked' and 'superimposed'. I am asking this because I generated histograms for the same datasets and same observable with choices 'stack' and 'superimpose, respectively. In both cases, the nature of the histograms was the same. But the values are not. I had one background and one signal. With the choice 'stack' I found the signal to dominate the background and with the peak value ( for a certain observable) at a little above 1 while choosing it 'superimpose' the background dominates and the signal peak decreases to below 1. In the bothe values for the background remains the same. This character is there for all the observable. So, I wanted to know what actually happens when we choose 'stack' or 'superimpose' as the stacking method?
When the two histograms are stacked, they are put on top of each other. When they are superimposed… well they are superimposed (I do not know any other synonym).

Cheers,

Benjamin