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[{"key": "dc.contributor.advisor", "value": "Lappi, Tuomas", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Paukkunen, Hannu", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Tevio, Mirja", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2020-12-11T08:14:25Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2020-12-11T08:14:25Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2020", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/73127", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Kvanttiv\u00e4ridynamiikan h\u00e4iri\u00f6teoriassa esiintyv\u00e4t virtuaaliset h\u00e4iri\u00f6t tuottavat\n\u00e4\u00e4rett\u00f6myyksi\u00e4, jotka ilmenev\u00e4t integroidessa virtuaalisen hiukkasen liikem\u00e4\u00e4r\u00e4n\nsuhteen. \u00c4\u00e4rett\u00f6myydet poistetaan renormalisaatioksi kutsutulla menetelm\u00e4ll\u00e4.\nT\u00e4ss\u00e4 tutkielmassa renormalisoidaan valokartiomitassa kvarkkipropagaattoria, joka\nsis\u00e4lt\u00e4\u00e4 h\u00e4iri\u00f6n gluonisilmukan muodossa. Valokartiomitta on todettu hy\u00f6dylliseksi\nk\u00e4sitelt\u00e4ess\u00e4 DGLAP evoluutioyht\u00e4l\u00f6it\u00e4 sek\u00e4 sen vuoksi, ett\u00e4 se ei sis\u00e4ll\u00e4 FaddeevPopov-aaveita. Kuitenkin laskut, joissa esiintyy valokartiomitan gluonipropagaattori,\novat haastavia gluonipropagaatorissa esiintyv\u00e4n ylim\u00e4\u00e4r\u00e4isen navan vuoksi. Vaikuttaa\nsilt\u00e4, ett\u00e4 valokartiomitassa ratkaistuja kvarkin napamassaa sek\u00e4 itseisenergiaa ei\nole esitetty eksplisiittisesti kirjallisuudessa.\nT\u00e4ss\u00e4 tutkielmassa n \u22c5 q napaa k\u00e4sitell\u00e4\u00e4n Mandelstam\u2013Leibbrandt-menetelm\u00e4ll\u00e4.\nKvarkin itseisenergia lasketaan \u00e4\u00e4relliset termit mukaanlukien, ja sen avulla muodostetaan efektiivinen kvarkkipropagaattori. Efektiivisen propagaattorin napamassa\nlasketaan kertaluokassa g2s. Tulokseksi saatu napamassa vastaa kovariantin mitan\ntulosta. Kvarkin kentt\u00e4- ja massarenormalisaatio suoritetaan my\u00f6s MS-skeemassa, ja\nsaadut renormalisaatiotermit vastaavat kirjallisuudessa esiintyvi\u00e4 tuloksia.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Perturbative Quantum Chromodynamics includes virtual particle perturbations\nwhich generate divergences. The divergences arise from the integration over the\nvirtual momentum, and they are eliminated by a procedure called renormalization.\nIn this thesis, the renormalization of a gluon loop corrected quark propagator, in\nthe light-cone gauge, is studied. The light-cone gauge is known to be advantageous\nbecause it does not include Faddeev\u2013Popov ghosts, and when deriving the DGLAP\nevolution equations. However, the calculations including light-cone gauge gluon\npropagator are challenging due to the unphysical pole in the gluon propagator. It\nappears that the light-cone gauge results for the pole mass of the one-loop corrected\nquark propagator and the complete self energy with the finite parts have not been\nexplicitly listed in the literature.\nIn this thesis the unphysical pole in the gluon propagator is regulated with the\nMandelstam\u2013Leibbrandt prescription. The quark self energy is solved, including the\nfinite terms, which is used to derive the effective quark propagator. The pole mass\nof the effective quark propagator is defined up to the order g\n2\ns\n, and it is found to\nbe equal to the covariant gauge result. The quark field and mass renormalization\ncounterterms in the MS scheme are determined and they are found to agree with the\nresults in the literature.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2020-12-11T08:14:25Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2020-12-11T08:14:25Z (GMT). No. of bitstreams: 0\n Previous issue date: 2020", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "65", "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": "quantum chromodynamics", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "renormalization", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "light-cone gauge", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "pole mass", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Quark mass renormalization in perturbative quantum chromodynamics in light-cone gauge", "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-202012117074", "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": "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": "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": "4024", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kvarkit", "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": "kvanttimekaniikka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "quarks", "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.subject.yso", "value": "quantum mechanics", "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": 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