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@PHDTHESIS{Caiazza:416980,
author = {Caiazza, Stefano},
othercontributors = {Behnke, Ties and List, Jenny and Garutti, Erika},
title = {{T}he {G}rid{GEM} module for the {ILD} {TPC} $\&$ {A} new
algorithm for kinematic edge determination},
school = {Universität Hamburg},
type = {Dissertation},
address = {Hamburg},
publisher = {Verlag Deutsches Elektronen-Synchrotron},
reportid = {PUBDB-2018-05289, DESY-THESIS-2018-037},
series = {DESY-THESIS},
pages = {283},
year = {2018},
note = {Dissertation, Universität Hamburg, 2018},
abstract = {The ILC is a planned linear collider, designed to provide
polarized electrons and positronsat energies higher than 250
GeV, possibly up to 1TeV, never before reached at a
leptoncollider. At the interaction point there will be two
detectors, which will perform highprecision measurement at
those energies. To achieve those performances, many of
thecomponents have to be developed beyond the current state
of the art. Moreover a preliminarysimulation and analysis
work is required to understand what type of measurementswill
those experiments be able to perform and which precision can
they achieve.In this thesis we will be mostly concerned with
the ILD experiment, which features alarge volume TPC used as
its main tracker. The first part of this thesis focusses on
thedesign, development and test of the first prototype of a
new GEM-based readout module forthat TPC, built around an
innovative ceramic support system which will allow a
reductionof the dead space in the sensitive area of a factor
of 3, as compared to traditional solutions.In the second
part of this work we will focus on the development of a
computationaltechnique to measure the position of edge-like
kinematic end-points in physical distributions.Therefore
this work will focus in particular on the characterisation
of the algorithmto define a procedure to reliably evaluate
the statistical and systematic errors associatedwith the
measurement. At the ILD such a technique would be
particularly useful to measurethe end-point in the kinematic
distributions of the decay products of new physicalstates
like those hypothesized by Supersymmetry. To evaluate the
performance of thealgorithm and of the experiment in that
scenario we applied that new technique to theprocess e−e+
! ˜eR¯˜eR ! e±e ˜01˜01and measured the position of the
kinematic edge inthe momentum distribution of the final
state leptons obtaining a factor of 2 improvementon the
accuracy in the measurement of the masses of the s-electron
and Neutralino, ascompared to the currently published
estimates.iii},
keywords = {thesis (INSPIRE) / time projection chamber (INSPIRE) / ILD
detector (INSPIRE) / performance (INSPIRE) / gas electron
multiplier (INSPIRE) / electronics: readout (INSPIRE) /
detector: design (INSPIRE) / supersymmetry (INSPIRE) / data
analysis method (INSPIRE) / lepton: final state (INSPIRE) /
momentum spectrum (INSPIRE) / statistical analysis
(INSPIRE)},
cin = {FLC},
cid = {I:(DE-H253)FLC-20120731},
pnm = {632 - Detector technology and systems (POF3-632) / SFB 676
B01 - Optimierung des ILC setups: Physikprogramm,
Betriebsszenarien und Designentscheidungen (B01) (28895157)},
pid = {G:(DE-HGF)POF3-632 / G:(GEPRIS)28895157},
experiment = {EXP:(DE-H253)ILC(machine)-20150101},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)29 / PUB:(DE-HGF)11},
doi = {10.3204/PUBDB-2018-05289},
url = {https://bib-pubdb1.desy.de/record/416980},
}