dc.identifier.uri | http://dx.doi.org/10.15488/1366 | |
dc.identifier.uri | http://www.repo.uni-hannover.de/handle/123456789/1391 | |
dc.contributor.author | Kobayashi, Tatsuo | |
dc.contributor.author | Parameswaran, Susha L. | |
dc.contributor.author | Ramos-Sánchez, Saul | |
dc.contributor.author | Zavala, Ivonne | |
dc.date.accessioned | 2017-04-21T09:47:38Z | |
dc.date.available | 2017-04-21T09:47:38Z | |
dc.date.issued | 2012 | |
dc.identifier.citation | Kobayashi, T.; Parameswaran, S.L.; Ramos-Sánchez, S.; Zavala, I.: Revisiting coupling selection rules in heterotic orbifold models. In: Journal of High Energy Physics 2012 (2012), Nr. 5, 8. DOI: https://doi.org/10.1007/JHEP05(2012)008 | |
dc.description.abstract | We study L-point couplings between twisted sector fields in heterotic orbifold compactifications, using conformal field theory. Selection rules provide an easy way to identify which couplings are non-vanishing. Those used in the current literature are gauge invariance, R-charge conservation and the space group selection rule, but they are not the whole story. We revive and refine a fourth selection rule, due to symmetries in the underlying torus lattice, and introduce a fifth one, due to the existence or not of classical worldsheet instanton solutions to mediate the couplings. We consider briefly the phenomenological consequences of the additional rules, in particular for recent orbifold constructions whose field content correspond to that of the MSSM. The structure of the exotic mass matrices is unaltered and many dimension-5 proton-decay operators vanish. | eng |
dc.description.sponsorship | Grant-in-Aid for Scientific Research | |
dc.description.sponsorship | Grant-in-Aid for the Global COE Program “The Next Generation of Physics, Spun from Universality and Emergence” | |
dc.description.sponsorship | Ministry of Education, Culture, Sports, Science and Technology of Japan | |
dc.description.sponsorship | Göran Gustafsson Foundation | |
dc.description.sponsorship | DFFG/EXC/Origin and Structure of the Universe | |
dc.description.sponsorship | DFG/SFB/TR33 | |
dc.description.sponsorship | EU/FP7/PITN-GA-2009-237920 | |
dc.description.sponsorship | CONACyT/82291 | |
dc.description.sponsorship | DGAPA/IA101811 | |
dc.language.iso | eng | |
dc.publisher | Heidelberg : Springer Verlag | |
dc.relation.ispartofseries | Journal of High Energy Physics 2012 (2012), Nr. 5 | |
dc.rights | CC BY 4.0 Unported | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.subject | Superstrings and Heterotic Strings | eng |
dc.subject | Conformal Field Models in String Theory | eng |
dc.subject | Global Symmetries | eng |
dc.subject.ddc | 530 | Physik | ger |
dc.title | Revisiting coupling selection rules in heterotic orbifold models | eng |
dc.type | Article | |
dc.type | Text | |
dc.relation.essn | 1029-8479 | |
dc.relation.issn | 1126-6708 | |
dc.relation.doi | https://doi.org/10.1007/JHEP05(2012)008 | |
dc.bibliographicCitation.issue | 5 | |
dc.bibliographicCitation.volume | 2012 | |
dc.bibliographicCitation.firstPage | 8 | |
dc.description.version | publishedVersion | |
tib.accessRights | frei zug�nglich |
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