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OXSX

Signal Extraction framework for the SNO+ experiment

Dependencies

1. [Armadillo](http://arma.sourceforge.net/) is a linear algebra package used for quick matrix multiplication 2. [GSL](https://gcc.gnu.org/libstdc++/) - likely you already have this installed, especially if you are running RAT 3. [SCons](http://www.scons.org/) Is used for the build, also a dependency for RAT 4. [HDF5](https://www.hdfgroup.org/HDF5/release/obtain5.html) Should be configured to install with c++ support ```./configure --enable-cxx && make && make install``` 5. [ROOT](https://root.cern.ch/downloading-root) Should be installed with Minuit2 enabled `./configure --enable-minuit2`

Installation Instructions

Follow the installation instructions for each of the above using either the default install location or a different directory if you would prefer. Be careful to start the install with a clean environment.
  1. Clone this repository with git clone https://github.com/jackdunger/oxsx.git --recursive if you've already cloned without the recursive flag just run git submodule update --init

  2. If your dependencies are somewhere the compiler can't find them, copy config/userconfig.ini.template to config/userconfig.ini and add the relevant paths. Missing entries are assumed to be in standard locations. e.g.

    [root]
    header_path : <path/to/headers>
    lib_path    : <path/to/libraries>
    
  3. Run scons && scons units

  4. Test the build was sucessful with ./test/RunUnits

Compiling Your Own Scripts

scons auto-generates a script that compiles and links your c++ against the source code and dependencies just run . <oxsx root>/bin/compile.sh <your cpp file> to produce an executible of the same name

Look in <oxsx root>/examples for help getting started

Creating ntuples

One way to read in data is using a ROOT ntuple. If you are looking at SNO+ data, you probably have a flat root tree that can be easily pruned down into this format with only the branches you are interested in.

To create ntuples for oxsx run ./util/prune_flat_tree <path_to_file_to_convert> -treename <name_of_the_tree> <branch1> <branch2> <branch3> -newtreename <name_of_your_tree> -outputfile <name_of_your_file> -nevents <number_of_events>

  • The name of the tree in an input file is optional, as a default it is "output"
  • The name of the output file is optional, as a default is is <the_name_of_input_file>+"_oxsx.root"
  • The name of the tree in an output file is optional, as a default it is "oxsx"
  • The number of events of an output file is optional

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