Measurement of Quarkonium Polarization to Probe QCD at the LHC

• Κύριος συγγραφέας: Knünz, Valentin (Συγγραφέας)
• Συγγραφή απο Οργανισμό/Αρχή: SpringerLink (Online service)
• Μορφή: Ηλεκτρονική πηγή Ηλ. βιβλίο
• Γλώσσα: English
• Έκδοση: Cham : Springer International Publishing : Imprint: Springer, 2017.
• Σειρά: Springer Theses, Recognizing Outstanding Ph.D. Research,
• Θέματα: Physics.; Quantum field theory.; String theory.; Nuclear physics.; Heavy ions.; Hadrons.; Nuclear Physics, Heavy Ions, Hadrons.; Quantum Field Theories, String Theory.
• Φυσική περιγραφή: XVII, 166 p. 74 illus., 37 illus. in color. online resource.
• ISBN: 9783319499352
• ISSN: 2190-5053

This thesis discusses in detail the measurement of the polarizations of all S-wave vector quarkonium states in LHC proton-proton collisions with the CMS detector. Heavy quarkonium states constitute an ideal laboratory to study non-perturbative effects of quantum chromodynamics and to understand how quarks bind into hadrons. The experimental results are interpreted through an original phenomenological approach, which leads to a coherent picture of quarkonium production cross sections and polarizations within a simple model, dominated by one single color-octet production mechanism. These findings provide new insights into the dynamics of heavy quarkonium production at the LHC, an important step towards a satisfactory understanding of hadron formation within the standard model of particle physics.