en
Doctoral thesis
Open access
English

Measurement of the inclusive electron cross-section from heavy flavour decays and of the bottom production rate with the ATLAS Experiment

Defense date2012-12-03
Abstract

This thesis presents a measurement of the inclusive electron production cross-section from heavy-flavour decays with the ATLAS experiment at the LHC. A dataset of proton-proton collisions at a center-of-mass energy of 7 TeV with a total integrated luminosity of 1.28 ± 0.04 1/pb is used for this measurement. Signal electrons, arising predominantly from semi-leptonic decays of charm and bottom hadrons, are extracted using a binned maximum likelihood method. The integrated cross-section for electrons originating from heavy- flavour decays, in the transverse momentum range 7 < pT < 26 GeV and within the pseudorapidity range |η| < 2, excluding 1.37 < |η| < 1.52, is σ_e = 0.946 ± 0.020(stat.) ± 0.146(syst.) ± 0.032(lumi.) μb. A study of the production rate of bottom hadrons, based on the same dataset as the inclusive measurement, is also presented. The relative pT of the electron with respect to a nearby track-jet is used in a binned maximum likelihood fit to differentiate the bottom hadron signal from charm, light hadron and photon conversion backgrounds.

eng
Citation (ISO format)
MORA HERRERA, Maria Clemencia Rosario. Measurement of the inclusive electron cross-section from heavy flavour decays and of the bottom production rate with the ATLAS Experiment. 2012. doi: 10.13097/archive-ouverte/unige:26454
Main files (1)
Thesis
accessLevelPublic
Identifiers
538views
346downloads

Technical informations

Creation01/30/2013 3:39:00 PM
First validation01/30/2013 3:39:00 PM
Update time03/14/2023 8:03:17 PM
Status update03/14/2023 8:03:17 PM
Last indexation01/29/2024 7:39:35 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack