Abstract
This thesis presents the work achieved to instrument the ATLAS software framework, ATHENA, with a library of tools and utensils for the physics analysis as well as the extraction of the jet energy scale using physics events (in-situ calibration). The software part presents the various components of the ATHENA framework which handles the simulated and reconstructed data flow as well as the different stages of this process, before and during the data taking. The building of a library of tools easing the reconstruction of physics objects, their association with Monte-Carlo particles and their API is then explained. The need for common language and collaboration-wide utensils is emphasised as it allows to share the workload of validating these tools and to get reproducible physics results. The analysis part deals with the implementation of a light jet energy scale calibration algorithm within the C++ framework. This calibration algorithm makes use of W bosons decaying into light jets within semileptonic t t-bar events. From the processing of fast and full simulation data with this algorithm, it seems possible to reach a percent level knowledge of the light jet energy scale. Finally, the feasibility study of the b-jet energy scale calibration using {gamma}Z{sup 0}
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Binet, Sebastien
[1]
- Laboratoire de Physique Corpusculaire, Universite Blaise Pascal - CNRS/IN2P3, 63000 Aubiere Cedex (France)
Citation Formats
Binet, Sebastien.
Software framework and jet energy scale calibration in the ATLAS experiment; Environnement logiciel et etalonnage de l'echelle en energie des jets dans l'experience ATLAS.
France: N. p.,
2006.
Web.
Binet, Sebastien.
Software framework and jet energy scale calibration in the ATLAS experiment; Environnement logiciel et etalonnage de l'echelle en energie des jets dans l'experience ATLAS.
France.
Binet, Sebastien.
2006.
"Software framework and jet energy scale calibration in the ATLAS experiment; Environnement logiciel et etalonnage de l'echelle en energie des jets dans l'experience ATLAS."
France.
@misc{etde_20992989,
title = {Software framework and jet energy scale calibration in the ATLAS experiment; Environnement logiciel et etalonnage de l'echelle en energie des jets dans l'experience ATLAS}
author = {Binet, Sebastien}
abstractNote = {This thesis presents the work achieved to instrument the ATLAS software framework, ATHENA, with a library of tools and utensils for the physics analysis as well as the extraction of the jet energy scale using physics events (in-situ calibration). The software part presents the various components of the ATHENA framework which handles the simulated and reconstructed data flow as well as the different stages of this process, before and during the data taking. The building of a library of tools easing the reconstruction of physics objects, their association with Monte-Carlo particles and their API is then explained. The need for common language and collaboration-wide utensils is emphasised as it allows to share the workload of validating these tools and to get reproducible physics results. The analysis part deals with the implementation of a light jet energy scale calibration algorithm within the C++ framework. This calibration algorithm makes use of W bosons decaying into light jets within semileptonic t t-bar events. From the processing of fast and full simulation data with this algorithm, it seems possible to reach a percent level knowledge of the light jet energy scale. Finally, the feasibility study of the b-jet energy scale calibration using {gamma}Z{sup 0} {yields} {gamma}b b-bar events is presented. It is shown that a purely sequential approach is not sufficient to extract the signal nor to collect a sufficient amount of Z{sup 0} to calibrate the b-jet energy scale. (author)}
place = {France}
year = {2006}
month = {Jul}
}
title = {Software framework and jet energy scale calibration in the ATLAS experiment; Environnement logiciel et etalonnage de l'echelle en energie des jets dans l'experience ATLAS}
author = {Binet, Sebastien}
abstractNote = {This thesis presents the work achieved to instrument the ATLAS software framework, ATHENA, with a library of tools and utensils for the physics analysis as well as the extraction of the jet energy scale using physics events (in-situ calibration). The software part presents the various components of the ATHENA framework which handles the simulated and reconstructed data flow as well as the different stages of this process, before and during the data taking. The building of a library of tools easing the reconstruction of physics objects, their association with Monte-Carlo particles and their API is then explained. The need for common language and collaboration-wide utensils is emphasised as it allows to share the workload of validating these tools and to get reproducible physics results. The analysis part deals with the implementation of a light jet energy scale calibration algorithm within the C++ framework. This calibration algorithm makes use of W bosons decaying into light jets within semileptonic t t-bar events. From the processing of fast and full simulation data with this algorithm, it seems possible to reach a percent level knowledge of the light jet energy scale. Finally, the feasibility study of the b-jet energy scale calibration using {gamma}Z{sup 0} {yields} {gamma}b b-bar events is presented. It is shown that a purely sequential approach is not sufficient to extract the signal nor to collect a sufficient amount of Z{sup 0} to calibrate the b-jet energy scale. (author)}
place = {France}
year = {2006}
month = {Jul}
}