Selection and processing of calibration samples to measure the particle identification performance of the LHCb experiment in Run 2

Since 2015, with the restart of the LHC for its second run of data taking, the LHCb experiment has been empowered with a dedicated computing model to select and analyse calibration samples to measure the performance of the particle identification (PID) detectors and algorithms. The novel technique w...

Full description

Saved in:
Bibliographic Details
Published in:EPJ techniques and instrumentation 2019-02, Vol.6 (1), p.1-16, Article 1
Main Authors: Aaij, Roel, Anderlini, Lucio, Benson, Sean, Cattaneo, Marco, Charpentier, Philippe, Clemencic, Marco, Falabella, Antonio, Ferrari, Fabio, Fontana, Marianna, Gligorov, Vladimir Vava, Hill, Donal, Humair, Tibaud, Jones, Christopher Robert, Lupton, Oliver, Malde, Sneha, Benito, Carla Marin, Matev, Rosen, Pearce, Alex, Poluektov, Anton, Sciascia, Barbara, Stagni, Federico, Gomez, Ricardo Vazquez, Zhang, Yanxi
Format: Article
Language:English
Subjects:
Algorithms
Atomic
Biological and Medical Physics
Biomaterials
Biophysics
Calibration
Characterization and Evaluation of Materials
Data acquisition
Data analysis methods
Data processing
Experimental methods
Experimental methods and data analysis methods
Experiments
Large Hadron Collider
Measurement Science and Instrumentation
Molecular
Optical and Plasma Physics
Performance evaluation
Physics
Physics and Astronomy
Reconstruction
Research Article
Spectroscopy and Microscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Since 2015, with the restart of the LHC for its second run of data taking, the LHCb experiment has been empowered with a dedicated computing model to select and analyse calibration samples to measure the performance of the particle identification (PID) detectors and algorithms. The novel technique was developed within the framework of the innovative trigger model of the LHCb experiment, which relies on online event reconstruction for most of the datasets, reserving offline reconstruction to special physics cases. The strategy to select and process the calibration samples, which includes a dedicated data-processing scheme combining online and offline reconstruction, is discussed. The use of the calibration samples to measure the detector PID performance, and the efficiency of PID requirements across a large range of decay channels, is described. Applications of the calibration samples in data-quality monitoring and validation procedures are also detailed.
ISSN:2195-7045
2195-7045
DOI:10.1140/epjti/s40485-019-0050-z