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    Alternative Tests of Quarkonium Production Theory Using Jets

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    6.1 Mb
    Date
    2017
    Author
    Makris, Yiannis
    Advisor
    Mehen, Thomas C
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    Abstract

    In this thesis I discuss an alternative approach for investigating quarkonium production in hadron colliders. I present a complete framework for developing observables for studies of charmonium states produced within a jet. My work is based on the use of effective field theories of quantum chromodynamics that allow for the approximate factorization of jet cross sections in perturbative calculable terms and universal non-perturbative functions that are extracted from data. Particularly in this thesis I explore the factorization approach of non-relativistic quantum chromodynamics and soft-collinear effective theory. The fragmenting jet functions play central role in factorization theorems for cross sections for identified hadrons within jets. This cross sections can depend on the hadron-jet energy ratio and possibly on other jet observables. I expand this concept to jet-shape observables known as angularities and introduce the transverse momentum dependent fragmenting jet functions. Applications of these advanced methods to J/ψ production from gluon fragmentation in electron-positron annihilation are presented and I develop the tools for expanding this work in hadron colliders. Additionally, I compare predictions for J/ψ production in jets, based on the framework of fragmenting jet functions, against recent experimental data from the LHCb collaboration.

    Type
    Dissertation
    Department
    Physics
    Subject
    Physics
    Particle physics
    Quantum physics
    Jet Physics
    Jet Substructure
    Non-Relativistic Quantum Chromodynamics
    Quantum Chromodynamics
    Quarkonium Production
    Soft Collinear Effective Theory
    Permalink
    https://hdl.handle.net/10161/14484
    Citation
    Makris, Yiannis (2017). Alternative Tests of Quarkonium Production Theory Using Jets. Dissertation, Duke University. Retrieved from https://hdl.handle.net/10161/14484.
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    Creative Commons License
    This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.

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