Simulation of the upgraded Phase-1 Trigger Readout Electronics of the Liquid-Argon Calorimeter of the ATLAS Detector at the LHC

Johannes Philipp Grohs

AutorIn

Johannes Philipp Grohs

Titel

Simulation of the upgraded Phase-1 Trigger Readout Electronics of the Liquid-Argon Calorimeter of the ATLAS Detector at the LHC

Zitierfähige Url:

https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa-202753

Datum der Einreichung

30.06.2015

Datum der Verteidigung

29.02.2016

Abstract (EN)

In the context of an intensive upgrade plan for the Large Hadron Collider (LHC) in order to provide proton beams of increased luminosity, a revision of the data readout electronics of the Liquid-Argon-Calorimeter of the ATLAS detector is scheduled. This is required to retain the efficiency of the trigger at increased event rates despite its fixed bandwidth. The focus lies on the early digitization and finer segmentation of the data provided to the trigger. Furthermore, there is the possibility to implement new energy reconstruction algorithms which are adapted to the specific requirements of the trigger. In order to constitute crucial design decisions, such as the digitization scale or the choice of digital signal processing algorithms, comprehensive simulations are required. High trigger efficiencies are decisive at it for the successful continuation of the measurements of rare StandardModel processes as well as for a high sensitivity to new physics beyond the established theories. It can be shown that a significantly improved resolution of the missing transverse energy calculated by the trigger is achievable due to the revised segmentation of the data. Various energy reconstruction algorithms are investigated in detail. It can be concluded that these will facilitate reliable trigger decisions for all expected working conditions and for the whole possible energy range.

Freie Schlagwörter (DE)

LHC, ATLAS, LAr, Phase-1 Upgrade

Freie Schlagwörter (EN)

LHC, ATLAS, LAr, Phase-1 Upgrade

Klassifikation (DDC)

530

Klassifikation (RVK)

UN 6100

GutachterIn