BDT with different cuts for different eras

TMVA
1

Hi.

In our analysis we have simulated the signal (and the background) for different (2016, 2017 and 2018) LHC eras. For each LHC era we have a set of signal and background files. We would like to know if a given cut can have different thresholds depending on the input files,

cut > 0.23 // When simulation corresponds to 2016
cut > 0.12 // When simulation corresponds to 2017
cut > 0.41 // When simulation corresponds to 2018

Thanks and best regards,
Jonatan

2

Hi,

Yes you can, but you have to use the general interface (link):

TTree * sigTree2016 = input_file.Get("SignalTree");
TTree * sigTree2017 = input_file.Get("SignalTree");

TMVA::DataLoader dataloader{"base_name"};

// NOTE: This is the most general way of adding an input source
// NOTE: Be careful with spelling, for classification the two
//       predefined categories are "Signal" and "Background".
dataloader.AddTree(sigTree2016, "Signal", sigWeight2016, "<your cut>");
dataloader.AddTree(sigTree2017, "Signal", sigWeight2017, TCut("<your cut>")););

// Similar for background

Cheers,
Kim

3

Thank you! I will try and let you know.

Cheers, Jonatan