001     293539
005     20230310120255.0
024 7 _ |a 10.3204/DESY-THESIS-2016-001
|2 datacite_doi
037 _ _ |a PUBDB-2016-00621
041 _ _ |a English
088 1 _ |a DESY-THESIS-2016-001
088 _ _ |a DESY-THESIS-2016-001
|2 DESY
100 1 _ |a Sert, Hale
|b 0
|e Corresponding author
|g female
|0 P:(DE-H253)PIP1016270
|u desy
245 _ _ |a Light Higgsinos at the ILC: Precision Measurements and Detector Requirements
|f 2012-02-01 - 2015-12-31
260 _ _ |a Hamburg
|c 2016
|b Verlag Deutsches Elektronen-Synchrotron
300 _ _ |a 271
336 7 _ |a Output Types/Dissertation
|2 DataCite
336 7 _ |a DISSERTATION
|2 ORCID
336 7 _ |a PHDTHESIS
|2 BibTeX
336 7 _ |a Thesis
|0 2
|2 EndNote
336 7 _ |a Report
|0 PUB:(DE-HGF)29
|2 PUB:(DE-HGF)
|m report
336 7 _ |a Dissertation / PhD Thesis
|b phd
|m phd
|0 PUB:(DE-HGF)11
|s 1481805652_19029
|2 PUB:(DE-HGF)
336 7 _ |a doctoralThesis
|2 DRIVER
490 0 _ |a DESY-THESIS
|0 PERI:(DE-600)1437131-5
|x 1435-8085
502 _ _ |a Universität Hamburg, Diss., 2015
|c Universität Hamburg
|b Dr.
|d 2015
520 _ _ |a This thesis is based on a study of Natural Supersymmetry (SUSY) scenarios at the International Linear Collider (ILC). These scenarios are motivated by naturalness, which requires the mu parameter to be at the electroweak scale. The considered Natural SUSY scenario contains three light higgsino-like charginos and neutralinos with a mass splitting of a few GeV or even sub-GeV, while all other supersymmetric particles are heavy in the multi-TeV scale. Due to the small mass difference of a few GeV, the final state consists of a large missing energy and a few very soft visible particles. Therefore, the analysis of such scenarios is extremely challenging for the LHC as well as the ILC. In order to investigate the feasibility of observing light higgsinos at the ILC, an analysis has been performed using both fast detector simulation and full detector simulation for International Large Detector (ILD). The fast simulation results have indicated that the key observables of the higgsinos can be reconstructed with an uncertainty of a few percent. It has been shown that the results enable determining the lower limits and allowed regions for the mass parameters of the bino M1 and the wino M2, as well as determining the higgsino mass parameter µ to the accuracy of a few percent. The full simulation analysis has provided information about detector requirements, such as the identification of low momentum electrons and muons. The electron identification can be studied by using the ionisation energy loss of the particles per length, dE/dx, which can be obtained from the Time Projection Chamber (TPC) of ILD. The identification of low momentum muons has been studied in the context of the thesis by using the calorimeter cluster shape differences between muons and pions. As a result, a method has been developed for particles with momentum lower than 2 GeV, and its impact on the higgsino analysis has been investigated. It has been found that assuming the electrons can be identified with the same efficiency as the muons, the key observables can be reconstructed with the same precision as in the fast simulation case by taking two times more data.The presence of soft final-state particles makes the tracking of high relevance for the analysis. Therefore, a comprehensive hardware study related to the TPC of ILD has been performed. In this study, three commonly used gas mixtures have been investigated in a small gas chamber containing a triple Gas Electron Multiplier stack, and their performance has been compared. This study has enhanced the understanding of the dependency of the charge transfer on the gas type. It has confirmed that the gas proposed to be used in the TPC is the most promising one.
536 _ _ |a 611 - Fundamental Particles and Forces (POF3-611)
|0 G:(DE-HGF)POF3-611
|c POF3-611
|x 0
|f POF III
536 _ _ |a SFB 676 B01 - Optimierung des ILC setups: Physikprogramm, Betriebsszenarien und Designentscheidungen (B01) (28895157)
|0 G:(GEPRIS)28895157
|c 28895157
|x 1
650 _ 7 |x Diss.
693 _ _ |a ILC
|e Facility (machine) ILC
|1 EXP:(DE-H253)ILC-20150101
|0 EXP:(DE-H253)ILC(machine)-20150101
|5 EXP:(DE-H253)ILC(machine)-20150101
|x 0
856 4 _ |u https://bib-pubdb1.desy.de/record/293539/files/PhDThesis_HaleSert.pdf
|y OpenAccess
856 4 _ |u https://bib-pubdb1.desy.de/record/293539/files/desy-thesis-16-001.title.pdf
|y OpenAccess
856 4 _ |u https://bib-pubdb1.desy.de/record/293539/files/PhDThesis_HaleSert.gif?subformat=icon
|x icon
|y OpenAccess
856 4 _ |u https://bib-pubdb1.desy.de/record/293539/files/PhDThesis_HaleSert.jpg?subformat=icon-1440
|x icon-1440
|y OpenAccess
856 4 _ |u https://bib-pubdb1.desy.de/record/293539/files/PhDThesis_HaleSert.jpg?subformat=icon-180
|x icon-180
|y OpenAccess
856 4 _ |u https://bib-pubdb1.desy.de/record/293539/files/PhDThesis_HaleSert.jpg?subformat=icon-640
|x icon-640
|y OpenAccess
856 4 _ |u https://bib-pubdb1.desy.de/record/293539/files/desy-thesis-16-001.title.gif?subformat=icon
|x icon
|y OpenAccess
856 4 _ |u https://bib-pubdb1.desy.de/record/293539/files/desy-thesis-16-001.title.jpg?subformat=icon-180
|x icon-180
|y OpenAccess
856 4 _ |u https://bib-pubdb1.desy.de/record/293539/files/desy-thesis-16-001.title.jpg?subformat=icon-700
|x icon-700
|y OpenAccess
856 4 _ |u https://bib-pubdb1.desy.de/record/293539/files/desy-thesis-16-001.title.pdf?subformat=pdfa
|x pdfa
|y OpenAccess
909 C O |o oai:bib-pubdb1.desy.de:293539
|p openaire
|p open_access
|p VDB
|p driver
|p dnbdelivery
910 1 _ |a Deutsches Elektronen-Synchrotron
|0 I:(DE-588b)2008985-5
|k DESY
|b 0
|6 P:(DE-H253)PIP1016270
913 1 _ |a DE-HGF
|b Forschungsbereich Materie
|l Materie und Universum
|1 G:(DE-HGF)POF3-610
|0 G:(DE-HGF)POF3-611
|2 G:(DE-HGF)POF3-600
|x 0
|4 G:(DE-HGF)POF
|v Fundamental Particles and Forces
|3 G:(DE-HGF)POF3
914 1 _ |y 2016
915 _ _ |a OpenAccess
|0 StatID:(DE-HGF)0510
|2 StatID
920 _ _ |l yes
920 1 _ |0 I:(DE-H253)FLC-20120731
|k FLC
|l Experimente an Lepton Collidern
|x 0
980 _ _ |a phd
980 _ _ |a VDB
980 _ _ |a report
980 _ _ |a I:(DE-H253)FLC-20120731
980 _ _ |a UNRESTRICTED
980 1 _ |a UNRESTRICTED
980 1 _ |a FullTexts


LibraryCollectionCLSMajorCLSMinorLanguageAuthor
Marc 21