Published September 25, 2018 | Version v1
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Search for the Lepton Flavour Violating decay B0 → K*0τ±μ± with the LHCb detector and pattern recognition for the upgrade with the SciFi Tracker

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Description

In this thesis I report the results of performance studies conducted on the pattern recognition algorithm dedicated to the Scintillating Fibre Tracker to be installed in the LHCb detector during its upgrade. The performance increases both in terms of reconstruction efficiencies and in processing time when working with additional scintillating fibre layers. The alternative tracking strategies tested allow for an improvement on the timing end at the cost of the reconstruction efficiencies. I also detail the selection and limit extraction procedure put in place for the search of the Lepton Flavour Violating decay B0 → K*0τ±μ±, finding expected limits of Ο(10-5). (author)

Abstract (French)

Dans cette these je presente les resultats d'etudes sur la performance d'algorithmes dedies a la reconstruction des trajectoires de particules charges avec le trajectographe SciFi, qui sera installe dans l'experience LHCb pendant son upgrade. Les performances augmentent en termes d'efficacite de reconstruction ainsi que de temps de calcul si une ou deux couches de fibres scintillantes additionnelles sont utilisees. Les strategies de reconstruction alternatives testees sans couches additionnelles permettent d'obtenir un gain en termes de temps de calcul au detriment des efficacites de reconstruction. Je presente aussi la recherche pour la desintegration violant la conservation de la saveur leptonique B0 → K*0τ±μ±, en detaillant la selection employee sur les donnees et le traitement statistique utilise pour quantifier la sensibilite de l'analyse et obtenir des valeurs de l'ordre de Ο(10-5) pour les limites attendues. (auteur)

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Additional details

Additional titles

Original title (English)
Recherche pour la desintegration violant la conservation de la saveur leptonique B0 → K*0τ±μ± avec le detecteur LHCb et la reconnaissance de formes pour la mise a niveau avec le SciFi Tracker

Publishing Information

Imprint Pagination
186 p.
Report number
FRNC-TH--12434

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
53017542
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
B NEUTRAL MESONS; CERN LHC; DATA ANALYSIS; LHCB DETECTOR; PARTICLE DECAY; PARTICLE IDENTIFICATION; STANDARD MODEL
Descriptors DEC
ACCELERATORS; B MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; CYCLIC ACCELERATORS; DATA PROCESSING; DECAY; ELEMENTARY PARTICLES; FIELD THEORIES; GRAND UNIFIED THEORY; HADRONS; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; MESONS; PARTICLE MODELS; PROCESSING; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; RADIATION DETECTORS; STORAGE RINGS; SYNCHROTRONS; UNIFIED GAUGE MODELS

Optional Information

Notes
94 refs.; Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses