Cite as: LHCb collaboration (2017). Matter Antimatter Differences (B meson decays to three hadrons) - Data Files. CERN Open Data Portal. DOI:10.7483/OPENDATA.LHCB.AOF7.JH09
This record contains the data set that is made available for the analysis described in the Project Notebook. The data was collected using the LHCb experiment in 2011 at a centre-of-mass energy of 7 TeV. The data has been reconstructed using the software framework of the experiment. The data has been selected by the trigger of the experiment and an offline selection made. The sample provided contains the candidate events observed for the decay of a charged B meson into three charged particles. In addition to providing the data of the experiment a file containing a simplified simulation of the decay of a charged B meson to three charged kaons is also provided. This simplified simulation file has not been passed through a simulation of the detector response.
The data files contain only the most important reconstructed variables for performing the analysis of this data set. A full description of the variables is provided in the Project Notebook. The data files are stored in the format a ROOT TTree.
The LHCb experiment is described in:
The data files are expected to be used with the Project Notebook.
Offline Selections cuts were made on: track transverse momentum (pT), sum of pT of Tracks, Track momentum, B candidate mass assuming all tracks are Kaons, Track impact parameter chi-square, sum of impact parameter chi-square of tracks, B candidate vertex fit chi-square.
The LHCb collaboration performs online and offline monitoring of the quality of the data collected. Only data for which the primary detector subsystems are highly performant are used for analysis.
The performance of the detector is described in:
The data files can be accessed using ROOT.
The open data are released under the Creative Commons CC0 waiver. Neither LHCb 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.