Welcome to CMS Open Data

as visualized by

ROOT-EVE and CMS-Fireworks

Public access to scientific datasets of the CMS experiment,
a general-purpose detector at the CERN-LHC.
Explore the potential of open science!

Sample 1

MuonEG Sample

Events contain one energetic muon and electron or photon.

View with Fireworks Visit OpenData page

Sample 2

DoubleEG Sample

Events contain different combinations of energetic photons, electrons and/or jets.

View with Fireworks Visit OpenData page

Sample 3

DoubleMuon Sample

Events contain at least two energetic muons.

View with Fireworks Visit OpenData page

Sample 4

BTagMU Sample

Events contain a muon from the b-quark decay, and one or more jets.

View with Fireworks Visit OpenData page