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Particle Collision Razor Variables Dataset
Data Science and Analytics
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About
Particle collision events from the MultiJet primary dataset derived from the CMS open data portal. This data originates from RunB in 2010 at CERN and has been processed to compute razor kinematic variables, specifically MR and Rsq. These variables are instrumental in searches for supersymmetric particles. The dataset contains event information, razor variables, details on the leading and subleading megajets, and other event properties like momentum and jet counts.
Columns
- Run: The specific run number assigned to the event.
- Lumi: The lumi section identifier for the event.
- Event: The unique event number.
- MR: The first razor kinematic variable, which estimates an overall mass scale. In scenarios with massless decay products, it corresponds to the mass of the heavy parent particle.
- Rsq: The second razor kinematic variable. It is the square of the ratio R, which measures energy flow perpendicular to the beam and the momentum partitioning between visible and invisible particles.
- E1, Px1, Py1, Pz1: The four-vector components for the leading megajet, which is the one with the highest transverse momentum.
- E2, Px2, Py2, Pz2: The four-vector components for the subleading megajet.
- HT: The scalar sum of the transverse momentum of the jets in the event.
- MET: The magnitude of the vector sum of the transverse energy of all particles within the event.
- nJets: The total number of jets observed with a transverse momentum greater than 40 GeV.
- nBJets: The count of b-tagged jets that have a transverse momentum exceeding 40 GeV.
Distribution
The data is provided in a single CSV file named
MultiJetRun2010B.csv, with a file size of 2.73 MB. It contains 17 columns and 21,700 valid records.Usage
This dataset is ideal for research and analysis in high-energy physics, particularly for studies involving supersymmetric particle searches. It can be used for developing and testing machine learning models for multiclass classification, data analytics in physical sciences, and educational purposes to understand particle collision data.
Coverage
The data covers particle collision events recorded at CERN during RunB in 2010. A list of all validated runs is available for analytical application.
License
CC0: Public Domain
Who Can Use It
- Physicists and Researchers: For conducting studies on supersymmetry and analysing particle collision phenomena.
- Data Scientists: For building predictive models, exploring complex high-dimensional data, and applying data analytics techniques.
- Students and Educators: As a practical dataset for learning about particle physics, data handling, and statistical analysis.
- Machine Learning Engineers: To develop and benchmark multiclass classification algorithms on real-world scientific data.
Dataset Name Suggestions
- CERN MultiJet Collision Events 2010
- Supersymmetry Search Data (CMS 2010)
- Particle Collision Razor Variables Dataset
- CMS Open Data: MultiJet Primary Dataset
- High-Energy Physics Event Data (CERN)
Attributes
Original Data Source: Particle Collision Razor Variables Dataset
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