The osets/ folder contains all of the OSET files. There is a osets/par subdirectory that can store pythia card files, but it is not currently in use. All OSET files must end with .oset.

When you run parseOSET, .oset files are converted to meta files that store all of the information necessary to generate monte carlo and match rates. There are three files.

• .coefs : A list of the branching ratio and cross section names for fitting. You can change the number after the = sign to change the default starting value for fitting.
• .model : A truncated .oset file that has the bare minimum information for monte carlo generation.
• .strgs : A list of the processes needed by your OSET file. This contains the name of the process and the coefficients that the process must be multiplied by for your given OSET.

There is also a current_processes.txt file that lists all available processes.

This folder contains all input and output files for monte carlo generation. More than one OSET can use the same process. The processes/log subdirectory contains debugging information for multi-processor generation.

Within each process folder, there are numerous files. Apart from the process specification files which are generated by parseOSET, all of the other files are created by generateProcess.

• .model : A truncated .oset file that has the bare minimum information for generating this particular process.
• .strg : The production/decay topology for this specific process.

• .brtb : A file with a modified branching ratio table to be read by Pythia.
• .card : A standard Pythia card file with generic process information.
• .proc : A file that specifies the hard process initial/final states and matrix element.

• .brtbout : A debugging file to check that Pythia has the proper particle/decay information
• .mcin : The number of requested monte carlo events.
• .mcout : The number of generated monte carlo events.
• .precut.lhco.gz : A “raw” monte carlo file with no level 3 triggers applied.
• .status : Stores information about process generation. (Not currently updated.)

• .lhco.gz : PGS4 output file.
• .log/.olog : Information about Pythia generation and PGS4 simulation
• .sigs : An MPotato vector of signatures.

These files control the way that signatures are generated.

• gridcutter.dat :
• mybins.dat :
• mycuts.dat :

When fitOSET is run, the results go into the analysis/ folder.

• .mask : You can adjust the weight of individual signatures in the fit with this file.

• .err : The best fit parameters with error bars
• .pull : The pull between the best fit and data to match
• .wt : The weights of events in each process. This file can be used to update the monte carlo files as necessary.
• plots/.ps : Postscript plots comparing the best fit to the data.

Signal monte carlo is stored here.