WARNING!! Work in Progress

This is the code repository for Neural Reweighting Project. The dataset is generated by simulating parton level event records from MadGraph with reweighting enabled. Then a DNN is trained to approximate the reweighting factor.

First Setup

Please fork and checkout the repository from this github url. If you are using it for the first time, please run the command

source setup_FirstTime.sh

It will automatically download MadGraph version 2.8.3.2 and LHAPDF version 6.4.0. It will also download any new physics UFO models necesary. The default UFOs explored in this project have been listed in models_to_get.txt. This file contains the https download links for each UFO, and obtained with the wget command. The following environment variables will be set by the script:

• $NEURWT_BASE_PATH: Absolute path to the project directory
• $NEURWT_MGLOC: Absolute path to the location of MadGraph are set up by the setup script.
• $NEURWT_LHAPDFLOC: Absolute path to the location of installed LHAPDF

Returning Setup

Each time you use return to use the project, run the command

source setup.sh

This will setup the necessary environment variables necessary for the project.

Getting the correct UFO models

If you want to add new UFO models for your event generation, please either add the corresponding link in the models_to_get.txt file after running the setup_FirstTime.sh (if this is the first time you are setting it up) or the setup.sh script. Then running the get_models.sh script will download those models and place the extracted model directories inside the $NEURWT_MGLOC/models directory. You can also download them manually and place them in the desired location.