HAL : tel-00007128, version 1
 Study of $Z' \rightarrow e^(+)e^(-)$ in full simulation with regard to discrimination between models beyond the standard model, ATLAS@CERNSchäfer M.Thèses. Universität Karlsruhe (15/10/2004), Müller Th. (Dir.)[oai:tel.archives-ouvertes.fr:tel-00007128] - http://tel.archives-ouvertes.fr/tel-00007128
Study of $Z' \rightarrow e^(+)e^(-)$ in full simulation with regard to discrimination between models beyond the standard model, ATLAS@CERN
Martina Schäfer1
 1 : LPSC - Laboratoire de Physique Subatomique et de Cosmologie http://lpsc.in2p3.fr CNRS : UMR5821 – IN2P3 – Université Joseph Fourier - Grenoble I – Institut Polytechnique de Grenoble - Grenoble Institute of Technology 53 avenue des Martyrs - 38026 Grenoble Cedex France
Thèses
15/10/2004
Aucun
Although experimental results so far agree with predictions of the Standard Model, it is widely felt to be incomplete. Many prospective theories beyond the Standard Model predict extra neutral gauge bosons, denoted by Z', which might be light enough to be accessible at the LHC. Observables sensitive to properties of these extra gauge bosons might be used to discriminate between the different theories beyond the Standard Model. In the present work several of these observables (total decay width, leptonic cross-section and forward-backward asymmetries) are studied at generation level and with a full simulation in the ATLAS detector. The Z' -> e^+e^- decay channel was chosen and two values for the mass of the Z': 1.5TeV and 4TeV. Background is studied as well and it is confirmed that a Z' boson could easily be discovered at the chosen masses. It is shown that even in full simulation the studied observables can be determined with a good precision. In a next step a discrimination strategy has to be developed given the presented methods to extract the variables and their precision.
Physique/Physique des Hautes Energies - Expérience
ATLAS

Universität Karlsruhe
LPSC 0459
Anglais

Müller Th.
Ledroit-Guillon F. (co-directeur)

ATLAS
15/10/2004
Universität Karlsruhe
Müller Th.
Ledroit-Guillon F. (co-directeur)
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 tel-00007128, version 1 http://tel.archives-ouvertes.fr/tel-00007128 oai:tel.archives-ouvertes.fr:tel-00007128 Contributeur : Base des publications de l'IN2P3 <> Soumis le : Vendredi 15 Octobre 2004, 13:59:19 Dernière modification le : Jeudi 29 Décembre 2005, 16:33:35