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Z to two electrons from 2011

McCauley, Thomas

Dataset Derived Education CMS CERN-LHC Parent Dataset: Datasets derived from the Run2011A SingleElectron, SingleMu, DoubleElectron, and DoubleMu primary datasets


Description

This document contains 10k events where two electron candidates with invariant mass near the mass of Z-boson were observed. The data was selected from the primary dataset DoubleElectron 2011. These data were selected for use in education and outreach and contain a subset of the total event information. They are not suitable for a full physics analysis.

Related datasets

This data file and other similar data files can be found from

Datasets derived from the Run2011A SingleElectron, SingleMu, DoubleElectron, and DoubleMu primary datasets

Dataset characteristics

10000 events.

Dataset semantics

Variable Description
Run The run number of the event.
Event The event number.
pt The transverse momentum of the electron (GeV).
eta The pseudorapidity of the electron.
phi The phi angle of the electron (rad).
Q The charge of the electron.
type Either EB or EE: whether the electron is in the barrel or in the endcap.
sigmaEtaEta The weighted cluster rms along eta for an electron.
HoverE The energy of the electron in the HCAL divided by the energy of the electron in the ECAL.
isoTrack The isolation variable for the electron in the tracker.
isoEcal The isolation variable for the electron in the ECAL.
isoHcal The isolation variable for the electron in the HCAL.

How were these data selected?

An event was selected if there were two electrons in the event with pT > 25 GeV and the invariant mass of the two electrons was > 60 GeV and < 120 GeV.

How can you use these data?

Comma-separated value (csv) files can be used in online applications such as the histogram visualizer and other applications, examples are given in

Jupyter notebooks using CMS Open Data

Instructions for use of CMS Open Data in R

Instructions for use of CMS Open Data in spreadsheets

File Indexes

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Disclaimer

The open data are released under the Creative Commons CC0 waiver. Neither CMS nor CERN endorse any works, scientific or otherwise, produced using these data. All releases will have a unique DOI that you are requested to cite in any applications or publications.

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