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[{"key": "dc.contributor.author", "value": "Oravasaari, Tero", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2013-03-08T16:05:21Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2013-03-08T16:05:21Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2013", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1255974", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/41037", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "We study a model of sterile neutrinos where the three ordinary active neutrinos actually consist of a superposition of an active and a sterile neutrinos forming quasidegenerate pairs. Oscillation between these pairs causes mixing between active and sterile neutrinos. Eigenmasses of the quasidegenerate pairs are very close to each other and theirs mass squared difference is of the order \u03b4m2 ~ 10^-12 eV2 or less. Such a small mass squared difference could be probed with AGN and GRB neutrinos detected in cubic kilometer size \nneutrino observatories.\n\nIn this work, affects of different parameters and different flavours at the source to the neutrino fluxes in cases of one, two and three sterile neutrinos is studied using the model. Muon relative neutrino flux, F\u00b5, is one of the easiest observed quantity in neutrino observatories. However, it is unlikely that any information of the sterile neutrinos could be extracted from this quantity because effects are too small to be observed.\nWith other quantities, such as Fe/F\u03c4, the existence of sterile neutrinos could be verified but any other information, i.e. mixing angles and mass squared differences, are likely to be\nleft out of the scope.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Tutkimme steriilien neutriinojen mallia, jossa kolme aktiivista neutriinoa \u03bde, \u03bd\u00b5 ja \u03bd\u03c4 ovat kukin aktiivin ja steriilin neutriinon kvasidegeneroituneita tiloja. Oskillaatio n\u00e4iden tilojen v\u00e4lill\u00e4 saa aikaan sekoittumisen aktiivisten ja steriilien neutriinojen v\u00e4lill\u00e4. Kvasidegeneroituneiden tilojen ominaismassat ovat hyvin l\u00e4hell\u00e4 toisiaan neli\u00f6massaeron ollessa \u03b4m2 < 10^-12 eV2. N\u00e4in pient\u00e4 neli\u00f6massaeroa voitaisiin tutkia kuutiokilometriluokan observatorioilla AGN- ja GRB-neutriinojen avulla.\n\nTarkastelemme t\u00e4ss\u00e4 ty\u00f6ss\u00e4 mallin eri parametrien ja alkuvoiden vaikutusta neutriinovoihin yhden, kahden ja kolmen steriilin neutriinon tapauksissa. Neutriino-observatorioissa helpoiten havaittavalla myonin neutriinojen suhteellisella vuolla (F\u00b5) steriilien neutriinojen havaitseminen ei ole todenn\u00e4k\u00f6ist\u00e4, sill\u00e4 vaikutukset j\u00e4\u00e4v\u00e4t pieniksi tai l\u00e4hes olemattomiksi. Muilla havaintosuureilla, kuten Fe/F\u03c4, steriilit neutriinot voitaisiin havaita, mutta tilojen v\u00e4listen sekoituskulmien ja neli\u00f6massaerojen selvitt\u00e4minen ei ole helppoa.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Tero Oravasaari (tekrorav) on 2013-03-08 16:05:21.094774. Form: Pro gradu -lomake (1 tekij\u00e4) (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake-1-tekijae). JyX data:", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija@noreply.fi) on 2013-03-08T16:05:21Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201303081311.pdf: 2252161 bytes, checksum: 1201b1b93ae3dc450f9705cfefd44ad8 (MD5)\nlicense.html: 4998 bytes, checksum: bd865c3c62b26c16f8c139a0e4bb866c (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2013-03-08T16:05:21Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201303081311.pdf: 2252161 bytes, checksum: 1201b1b93ae3dc450f9705cfefd44ad8 (MD5)\nlicense.html: 4998 bytes, checksum: bd865c3c62b26c16f8c139a0e4bb866c (MD5)\n Previous issue date: 2013", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "71 sivua", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "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": "Neutriinojen oskillaatio", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "steriilit neutriinot", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "aktiiviset galaksiytimet", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Kvasidegeneroituneiden steriilien neutriinojen havaitseminen", "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-201303081311", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.dcmitype", "value": "Text", "language": "en", "element": "type", "qualifier": "dcmitype", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master's 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": "2013-03-08T16:05:22Z", "language": null, "element": "date", "qualifier": "updated", "schema": "dc"}, {"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": "neutriinot", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "fysiikka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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