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DatasetCERN Open Data
Explore more than five petabytes of open particle-physics data in the CERN Open Data Portal.
About CERN Open Data
The CERN Open Data Portal provides access to more than five petabytes of open data from particle physics. It offers datasets, software, environments, and documentation from experiments including ALICE, ATLAS, CMS, DELPHI, JADE, LHCb, OPERA, PHENIX, and TOTEM.
Users can search for items such as collision datasets, education-related content, or data at a specific energy such as 7TeV. The portal also includes guides for education and research use, event displays, histograms, and machine learning example materials.
Key features
- Search collision datasets by keyword, energy level, and dataset type
- Access datasets from ALICE, ATLAS, CMS, LHCb, and other experiments
- Guides for education and research use of CMS Open Data
- Event displays for CMS and OPERA collisions
- CMS histograms for teaching and analysis
- ATLAS Higgs Machine Learning Challenge materials
Best for: Students, educators, and researchers who need particle-physics datasets with supporting guides and tools.
Good for
- More than five petabytes of open particle-physics data
- Data from ALICE, ATLAS, CMS, LHCb, and other listed experiments
- Education and research guides with event displays and histograms
CERN Open Data at a glance
- Official website
- opendata.cern.ch
- Category
- Research & Data › Open Data & Datasets
- Type
- Dataset
- Platforms
- Web
- Language
- English
- Country
- CH
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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