English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/92176
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 12 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Heterotic weight lifting

Autor Gato Rivera, Beatriz ; Schellekens, A. N.
Fecha de publicación 2010
EditorElsevier
Citación Nuclear Physics B 828: 375- 389 (2010)
ResumenWe describe a method for constructing genuinely asymmetric (2, 0) heterotic strings out of N = 2 minimal models in the fermionic sector, whereas the bosonic sector is only partly build out of N = 2 minimal models. This is achieved by replacing one minimal model plus the superfluous E8 factor by a non-supersymmetric CFT with identical modular properties. This CFT generically lifts the weights in the bosonic sector, giving rise to a spectrum with fewer massless states. We identify more than 30 such lifts, and we expect many more to exist. This yields more than 450 different combinations. Remarkably, despite the lifting of all Ramond states, it is still possible to get chiral spectra. Even more surprisingly, these chiral spectra include examples with a certain number of chiral families of SO (10), SU (5) or other subgroups, including just SU (3) × SU (2) × U (1). The number of families and mirror families is typically smaller than in standard Gepner models. Furthermore, in a large number of different cases, spectra with three chiral families can be obtained. Based on a first scan of about 10% of the lifted Gepner models we can construct, we have collected more than 10,000 distinct spectra with three families, including examples without mirror fermions. We present an example where the GUT group is completely broken to the standard model, but the resulting and inevitable fractionally charged particles are confined by an additional gauge group factor. © 2009 Elsevier B.V. All rights reserved.
URI http://hdl.handle.net/10261/92176
DOI10.1016/j.nuclphysb.2009.12.001
Identificadoresdoi: 10.1016/j.nuclphysb.2009.12.001
issn: 0550-3213
Aparece en las colecciones: (CFMAC-IFF) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
gato.pdf193,18 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.