Measurement of Quarkonium Polarization to Probe QCD at the LHC
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Beschreibung
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.
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.
Nominated as an outstanding PhD thesis by CERN Recipient of the CMS prize and the Victor-Hess prize for the best thesis of 2015 Provides an in-depth description of novel experimental techniques implemented at the LHC Offers a didactic description of an original solution to a long-standing puzzle in particle physics Includes supplementary material: sn.pub/extras
Autor*in
Valentin Knünz
Themen in »Measurement of Quarkonium Polarization to Probe QCD at the LHC«
Quarkonium Physics Hadron Formation Quarkonium Production Heavy Quarkonia CMS Data Analysis QCD Phenomenology NRQCD