Pair production in a Color Glass Condensate background

At high energy, the density of gluons in hadrons strongly increases until saturation, leading to a state of condensed gluon matter. In high energy collisions, the interaction of partons with this dense gluonic state is represented through Wilson Lines in the Color Glass Condensate theory, which desc...

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Bibliografiset tiedot
Päätekijä: Estivill, Patricia Gimeno
Muut tekijät: Matemaattis-luonnontieteellinen tiedekunta, Faculty of Sciences, Fysiikan laitos, Department of Physics, Jyväskylän yliopisto, University of Jyväskylä
Aineistotyyppi: Pro gradu
Kieli:eng
Julkaistu: 2023
Aiheet:
Linkit: https://jyx.jyu.fi/handle/123456789/88453
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author Estivill, Patricia Gimeno
author2 Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics Jyväskylän yliopisto University of Jyväskylä
author_facet Estivill, Patricia Gimeno Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics Jyväskylän yliopisto University of Jyväskylä Estivill, Patricia Gimeno Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics Jyväskylän yliopisto University of Jyväskylä
author_sort Estivill, Patricia Gimeno
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description At high energy, the density of gluons in hadrons strongly increases until saturation, leading to a state of condensed gluon matter. In high energy collisions, the interaction of partons with this dense gluonic state is represented through Wilson Lines in the Color Glass Condensate theory, which describes the properties of small-x gluons in the saturated regime. In relativistic proton-nucleus collisions, the proton can be treated as a dilute system where a gluon fluctuates into a quark-antiquark pair. In this thesis, the interaction of these gluon and quark/antiquark partons with the condensed gluon matter in the nucleus is studied. Concretely, the quark pair production amplitude is calculated using the dilute-dense approximation in the covariant and in the Light Cone Perturbation theories. Firstly, in covariant theory the proton and nucleus are described as classical fields originating from color sources. As another approach, the initial gluon and the final quark-antiquark states are expanded in terms of the Fock state basis in Light Cone Perturbation Theory. A comparison of the two results is made at the end.
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In high energy collisions, the interaction\nof partons with this dense gluonic state is represented through Wilson Lines in the\nColor Glass Condensate theory, which describes the properties of small-x gluons in the\nsaturated regime. In relativistic proton-nucleus collisions, the proton can be treated\nas a dilute system where a gluon fluctuates into a quark-antiquark pair. In this thesis,\nthe interaction of these gluon and quark/antiquark partons with the condensed gluon\nmatter in the nucleus is studied. Concretely, the quark pair production amplitude is\ncalculated using the dilute-dense approximation in the covariant and in the Light\nCone Perturbation theories. Firstly, in covariant theory the proton and nucleus are\ndescribed as classical fields originating from color sources. As another approach, the\ninitial gluon and the final quark-antiquark states are expanded in terms of the Fock\nstate basis in Light Cone Perturbation Theory. 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spellingShingle Estivill, Patricia Gimeno Pair production in a Color Glass Condensate background gluon saturation Wilson Lines Teoreettinen fysiikka Theoretical Physics 4024 hiukkasfysiikka kvarkit alkeishiukkaset gluonit particle physics quarks elementary particles gluons
title Pair production in a Color Glass Condensate background
title_full Pair production in a Color Glass Condensate background
title_fullStr Pair production in a Color Glass Condensate background Pair production in a Color Glass Condensate background
title_full_unstemmed Pair production in a Color Glass Condensate background Pair production in a Color Glass Condensate background
title_short Pair production in a Color Glass Condensate background
title_sort pair production in a color glass condensate background
title_txtP Pair production in a Color Glass Condensate background
topic gluon saturation Wilson Lines Teoreettinen fysiikka Theoretical Physics 4024 hiukkasfysiikka kvarkit alkeishiukkaset gluonit particle physics quarks elementary particles gluons
topic_facet 4024 Teoreettinen fysiikka Theoretical Physics Wilson Lines alkeishiukkaset elementary particles gluon saturation gluonit gluons hiukkasfysiikka kvarkit particle physics quarks
url https://jyx.jyu.fi/handle/123456789/88453 http://www.urn.fi/URN:NBN:fi:jyu-202307254578
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