© 2017

Measurement of Quarkonium Polarization to Probe QCD at the LHC


Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xvii
  2. Valentin Knünz
    Pages 1-7
  3. Valentin Knünz
    Pages 9-33
  4. Valentin Knünz
    Pages 35-75
  5. Valentin Knünz
    Pages 77-121
  6. Valentin Knünz
    Pages 123-156
  7. Valentin Knünz
    Pages 157-160
  8. Back Matter
    Pages 161-166

About this book


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.


Quarkonium Physics Hadron Formation Quarkonium Production Heavy Quarkonia CMS Data Analysis QCD Phenomenology NRQCD

Authors and affiliations

  1. 1.Experimental Physics DepartmentCERNGenevaSwitzerland

About the authors

Valentin Knünz completed his undergraduate and PhD studies at the University of Technology Vienna, performing experimental particle physics research at the Institute of High Energy Physics of the Austrian Academy of Sciences, participating in the CMS experiment at the LHC. Upon graduation he was accepted as a fellow at CERN, continuing his research within the CMS collaboration.

Bibliographic information

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