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[{"key": "dc.contributor.advisor", "value": "Lappi, Tuomas", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "H\u00e4nninen, Henri", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2017-03-31T11:49:19Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2017-03-31T11:49:19Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2017", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1693552", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/53438", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Syv\u00e4n ep\u00e4elastisen sironnan kokeellisia tuloksia on kuvattu onnistuneesti pie-\r\nnill\u00e4 Bjorkenin x:n arvoilla k\u00e4ytt\u00e4m\u00e4ll\u00e4 sironnan dipolimallia ja johtavan kerta-\r\nluvun valokartioh\u00e4iri\u00f6teoriaa. On t\u00e4rke\u00e4\u00e4 selvitt\u00e4\u00e4, paraneeko teorian kuvaavuus\r\ntutkimalla vaikutuksia korkeampien kertalukujen h\u00e4iri\u00f6teoriasta.\r\nMittaustulosten kuvauksen parantamiseksi t\u00e4ss\u00e4 ty\u00f6ss\u00e4 johdetaan korjauksia\r\njohtavan kertaluvun vaikutusalaan ja rakennefunktioihin h\u00e4iri\u00f6teorian toisessa ker-\r\ntaluvussa. T\u00e4m\u00e4n toteuttamiseksi esitell\u00e4\u00e4n tarvittavassa m\u00e4\u00e4rin valokartiokvant-\r\ntikentt\u00e4teoria, pienen Bjorken-x sironnan dipolimalli ja h\u00e4iri\u00f6teoriaa. Johdettu toi-\r\nsen kertaluvun vaikutusalala sis\u00e4lt\u00e4\u00e4 pehme\u00e4n divergenssin prosessin sis\u00e4lt\u00e4mien\r\nsis\u00e4isten gluonien takia. T\u00e4m\u00e4 divergenssi katkaisu-reguloidaan, mist\u00e4 saadaan\r\n\u00e4\u00e4relliset numeerisesti laskettavat vaikutusalat ja rakennefunktiot.\r\nJohdetut toisen kertaluvun korjaukset evaluoidaan numeerisesti ja verrataan\r\ntunnettuihin johtavan kertaluvun tuloksiin. Regularisaatio havaitaan toimivaksi,\r\nmutta katkaisu ei poista dirvergenssi\u00e4 t\u00e4ysin ideaalisella tavalla, mik\u00e4 johtaa koh-\r\ntuuttoman suuriin toisen kertaluvun korjauksiin. T\u00e4m\u00e4n seurauksena toisen kerta-\r\nluvun vaikutusala ja rakennefunktio tuloksista tulee negatiivisia korkeilla fotonin\r\nvirtualiteeteilla, mik\u00e4 on ep\u00e4fysikaalista. T\u00e4m\u00e4 tulos kertoo, ett\u00e4 regularisaatioon\r\ntarvitaan huolellisempi l\u00e4htestymistapa.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Experimentally determined Deep Inelastic Scattering structure functions have\r\nbeen successfully described at small Bjorken-x using the dipole picture of the\r\nscattering and leading order light cone perturbation theory. It is of interest whether\r\nthis description can be bettered by studying higher order perturbation theory\r\neffects.\r\nTo improve the description, this work derives corrections to the Deep Inelastic\r\nScattering cross sections and structure functions at next-to-leading order in light\r\ncone perturbation theory. To do this the framework of quantum field theory on the\r\nlight cone is introduced along with necessities of perturbation theory on the light\r\ncone and the dipole picture of the scattering. The derived next-to-leading order\r\ncross section result has a soft divergence that is regulated with a cut-off, which\r\nthen yields access to numerically evaluable cross sections and structure functions.\r\nThe next-to-leading order corrections are evaluated numerically and compared\r\nto established leading order results. It is found that while the regularization works,\r\nthe divergence is over-subtracted leading to inviably large corrections to the leading\r\nresult. This leads to the next-to-leading order cross section and structure function\r\nresults becoming negative at high photon virtualities, which is unphysical. This\r\nresult shows that a more careful approach to the regularization is needed.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Henri H\u00e4nninen (hejohann) on 2017-03-31 11:49:19.313893. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2017-03-31T11:49:19Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201703311846.pdf: 970132 bytes, checksum: 611ce1980771b712301d5b9695780603 (MD5)\r\nlicense.html: 4861 bytes, checksum: 57403a662a78bafe85f510050b8d4713 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2017-03-31T11:49:19Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201703311846.pdf: 970132 bytes, checksum: 611ce1980771b712301d5b9695780603 (MD5)\r\nlicense.html: 4861 bytes, checksum: 57403a662a78bafe85f510050b8d4713 (MD5)\r\n Previous issue date: 2017", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (75 sivua)", "language": null, "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.title", "value": "Next-to-leading order corrections to deep inelastic scattering structure functions at small Bjorken-x", "language": null, "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-201703311846", "language": null, "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": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Teoreettinen fysiikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Theoretical Physics", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": "2017-03-31T11:49:20Z", "language": "", "element": "date", "qualifier": "updated", "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": "fi", "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": "4024", "language": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "sironta", "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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