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Title
Understanding muon detection efficiencies for Quarkonium polarization measurements at the compact muon solenoid / von Johannes Brandstetter
AuthorBrandstetter, Johannes
CensorWulz, Claudia-Elisabeth
Published2014
Description139 S. : Ill., zahlr. graph. Darst.
Institutional NoteWien, Techn. Univ., Dipl.-Arb., 2014
Annotation
Zsfassung in dt. Sprache
LanguageEnglish
Document typeThesis (Diplom)
Keywords (DE)Quarkonia / Polarisation / LHC / Myonen / Efizienzen
Keywords (EN)Quarkonia / polarization / LHC / muons / efficiencies
URNurn:nbn:at:at-ubtuw:1-77100 Persistent Identifier (URN)
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 The work is publicly available
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Understanding muon detection efficiencies for Quarkonium polarization measurements at the compact muon solenoid [11.51 mb]
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Abstract (English)

Quarkonium physics is a fundamental field of research to get a better understanding of quantum chromodynamics - the theory of the strong interaction. Quarkonia are bound states of the heavy charm or bottom quark and their respective antiquarks. The complexity of understanding the quarkonium production mechanism has given rise to various theoretical models. The Large Hadron Collider (LHC) reaches unprecedented collision energies and has already significantly contributed to understanding the experimental side of the quarkonium puzzle. The CMS detector is well suited to study the polarization of promptly-produced chi_cJ states, using data taken in proton-proton collisions in 2012 at a center of mass energy of 8 TeV. This thesis describes the general strategy of the analysis, focusing on the most important input parameters, namely the muon detection efficiencies. Single muon detection efficiencies as well as muon pair correlations are presented.

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