ENGLISH

Measurement of Quarkonium Polarization to Probe QCD at the LHC

By Valentin Knünz (auth.)

Book information

Publisher
Springer International Publishing
Year
2017
ISBN
978-3-319-49934-5, 978-3-319-49935-2
DOI
10.1007/978-3-319-49935-2
Language
english
Format
PDF
Filesize
10 MB (10047717 bytes)
Series
Springer Theses
Edition
1
Pages
XVII, 166\179
Time added
2017-02-20 14:56:08
Hadrons;Quantum Field TheoriesHeavy IonsNuclear PhysicsString Theory

Description

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.

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