iSpy NanoAOD: An event display for the CMS NanoAOD format

This application allows one to visualize events in the CMS NanoAOD format in a Jupyter notebook.

Installation

pip install ispynanoaod

Installation for developers:

Clone this repository:

git clone https://github.com/cms-outreach/ispy-nanoaod.git

Install locally:

cd ispy-nanoaod
pip install -e .

Usage

See the example notebooks in the examples dir. You may also open and run them using the link to Binder or Colab above.

Quick start

Open a notebook using for example jupyter lab.

Import the libraries:

import os
import subprocess
import ispynanoaod as ispy

Download some data:

file_name = 'EEB2FE3F-7CF3-BF4A-9F70-3F89FACE698E.root'
file_url = 'http://opendata.cern.ch/eos/opendata/cms/Run2016H/DoubleMuon/NANOAOD/UL2016_MiniAODv2_NanoAODv9-v1/2510000/EEB2FE3F-7CF3-BF4A-9F70-3F89FACE698E.root'

if not (os.path.isfile(f'{file_name}')):
    subprocess.run(['curl', '-O', f'{file_url}'])

Visualize:

display = ispy.EventDisplay()
display.load_file(file_name)
display.display()