Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 최강신 | * |
dc.date.accessioned | 2016-08-28T10:08:29Z | - |
dc.date.available | 2016-08-28T10:08:29Z | - |
dc.date.issued | 2012 | * |
dc.identifier.issn | 1126-6708 | * |
dc.identifier.other | OAK-9008 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/222838 | - |
dc.description.abstract | We construct decomposed spectral covers for bundles on elliptically fibered Calabi-Yau threefolds whose structure groups are S(U(1) × U(4)), S(U(2) × U(3)) and S(U(1) × U(1) × U(3)) in heterotic string compactifications. The decomposition requires not only the tuning of the SU(5) spectral covers but also the tuning of the complex structure moduli of the Calabi-Yau threefolds. This configuration is translated to geometric data on F-theory side. We find that the monodromy locus for two-cycles in K3 fibered Calabi-Yau fourfolds in a stable degeneration limit is globally factorized with squared factors under the decomposition conditions. This signals that the monodromy group is reduced and there is a U(1) symmetry in a low energy effective field theory. To support that, we explicitly check the reduction of a monodromy group in an appreciable region of the moduli space for an E 6 gauge theory with (1 + 2) decomposition. This may provide a systematic way for constructing F-theory models with U(1) symmetries. © 2012 SISSA. | * |
dc.language | English | * |
dc.title | U(n) spectral covers from decomposition | * |
dc.type | Article | * |
dc.relation.issue | 6 | * |
dc.relation.volume | 2012 | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | Journal of High Energy Physics | * |
dc.identifier.doi | 10.1007/JHEP06(2012)009 | * |
dc.identifier.wosid | WOS:000306416500010 | * |
dc.identifier.scopusid | 2-s2.0-84864367640 | * |
dc.author.google | Choi K.-S. | * |
dc.author.google | Hayashi H. | * |
dc.contributor.scopusid | 최강신(56289191500) | * |
dc.date.modifydate | 20240220111904 | * |