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[{"key": "dc.contributor.advisor", "value": "M\u00e4ntysaari, Heikki", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Huhta, Laura", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2021-06-24T06:26:25Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2021-06-24T06:26:25Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2021", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/76823", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Korkeaenergiset t\u00f6rm\u00e4ykset mahdollistavat tutkimuksen hyvin tiheiss\u00e4 gluonisysteemeiss\u00e4, joissa aine on v\u00e4rilasikondensaatiksi (CGC) kutsutussa olomuodossa. T\u00e4llaisessa tihe\u00e4n gluoniaineen alueessa ep\u00e4lineaariset ilmi\u00f6t kuten gluonirekombinaatio ovat merkitt\u00e4vi\u00e4. Saturoituneesta gluonisesta aineesta ei olla viel\u00e4 tehty varmoja havaintoja, ja t\u00e4m\u00e4 onkin tulevien kiihdytinkokeiden, kuten Brookhavenin kansalliseen laboratorioon (BNL) rakennettavan Elektroni-ionikiihdyttimen (EIC), yksi p\u00e4\u00e4tavoitteista.\nT\u00e4ss\u00e4 ty\u00f6ss\u00e4 tutkitaan dipolikuvassa jettituottoa prosesseissa, joissa virtuaalinen fotoni siroaa protonista (\u03b3*-p) tai ytimest\u00e4 (\u03b3*-A), ja jotka ovat syv\u00e4n ep\u00e4elastisen sironnan (DIS) aliprosesseja. Huomataan, ett\u00e4 pieness\u00e4 x:n alueessa jettituottovaikutusala \u03b3*-A-prosesseissa kokee suppressiota verrattuna skaalattuun \u03b3*-p-vaikutusalaan. T\u00e4m\u00e4 ydinsuppressio johtuu lis\u00e4\u00e4ntyneest\u00e4 ep\u00e4lineaarisesta dynamiikasta raskaissa ytimiss\u00e4 verrattuna protoniin. Ty\u00f6ss\u00e4 n\u00e4hd\u00e4\u00e4n, ett\u00e4 ydinsuppressio riippuu fotonin polarisaatiosta. Lis\u00e4ksi alueessa, jossa Bjorken x\u224810^(\u22122) , havaitaan Cronin-ilmi\u00f6, jolloin suppression sijaan \u03b3*-A-prosessin jettituotto kasvaa suhteessa \u03b3*-p-prosessiin. Ilmi\u00f6 heikentyy ja lopulta katoaa kun x pienenee. T\u00e4m\u00e4n pohjalta voidaan odottaa, ett\u00e4 EIC:ss\u00e4 havaittaisiin Cronin-ilmi\u00f6t\u00e4 tietyll\u00e4 kinemaattisella alueella. Ty\u00f6ss\u00e4 verrataan kahta eri parametrisaatiota MV-mallille, jota k\u00e4ytet\u00e4\u00e4n dipoliamplitudien laskemisessa, ja niiden v\u00e4lill\u00e4 n\u00e4hd\u00e4\u00e4n pient\u00e4 eroavaisuutta. Jettituottomittaukset EIC:ss\u00e4 voivat siis edist\u00e4\u00e4 sopivan dipoliamplitudimallin m\u00e4\u00e4ritt\u00e4mist\u00e4.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "High energy collisions enable studies of very dense systems of gluons, which lead to a type of matter known as color glass condensate (CGC). In this gluon saturation regime, non-linear effects such as gluon recombination become important. Clear observations of saturated gluonic matter have not yet been achieved, therefore these observations are a major goal of future collider experiments such as the Electron-Ion Collider (EIC) at Brookhaven National Laboratory (BNL).\nIn this thesis, we study jet production in the virtual photon-proton (\u03b3*-p) and virtual photon-nucleus (\u03b3*-A) subprocesses of deep inelastic scattering (DIS) in the dipole picture. We find that the jet production cross section in \u03b3*-A processes is suppressed at small x when compared to the scaled \u03b3*-p cross section. This suppression results from enhanced non-linear dynamics in heavy nuclei as compared to the proton. The nuclear suppression is found to depend on photon polarization. Also, nuclear enhancement known as the Cronin effect is observed at Bjorken x\u224810^(\u22122) and is seen to diminish with decreasing x, suggesting enhancement to be visible at the EIC at a specific kinematic range. Two MV model based parametrizations used to calculate initial conditions for the small-x evolutions of the dipole amplitudes are compared and a slight difference between the models is seen. This suggests that EIC data could be used to constrain the dipole amplitude towards a best-suited model.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2021-06-24T06:26:25Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2021-06-24T06:26:25Z (GMT). No. of bitstreams: 0\n Previous issue date: 2021", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "58", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "eng", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "jet production", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "gluon saturation", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "dipole picture", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "deep inelastic scattering", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Jet production in deep inelastic scattering at small Bjorken x", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202106244018", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Fysiikan laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Physics", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Fysiikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Physics", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4021", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "fysiikka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "hiukkasfysiikka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "physics", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "particle physics", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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