Comments on Orientifolds without Vector Structure

We revisit type I compactifications with a Spin(32)/Z2 gauge bundle that admits no vector structure. We elucidate the relation of this Z2 obstruction to discrete B-field flux and to 't Hooft flux and clarify some subtleties in the T-duality transformation to type IIA intersecting D-brane models...

Descripción completa

Detalles Bibliográficos
Autores principales: Bachas, Constantin, Bianchi, Massimo, Blumenhagen, Ralph, Lüst, Dieter, Weigand, Timo
Lenguaje:eng
Publicado: 2008
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1088/1126-6708/2008/08/016
http://cds.cern.ch/record/1106096
_version_ 1780914117560762368
author Bachas, Constantin
Bianchi, Massimo
Blumenhagen, Ralph
Lüst, Dieter
Weigand, Timo
author_facet Bachas, Constantin
Bianchi, Massimo
Blumenhagen, Ralph
Lüst, Dieter
Weigand, Timo
author_sort Bachas, Constantin
collection CERN
description We revisit type I compactifications with a Spin(32)/Z2 gauge bundle that admits no vector structure. We elucidate the relation of this Z2 obstruction to discrete B-field flux and to 't Hooft flux and clarify some subtleties in the T-duality transformation to type IIA intersecting D-brane models. We reexamine the earliest 3-generation GUT model on magnetized D-branes and show its consistency when a discrete B-flux is switched on. We further generalize partially known results for toroidal models to type I compactifications without vector structure and their mirror dual type IIA orientifolds on genuine Calabi-Yau manifolds. We illustrate this by working out the example of the quintic in some detail.
id cern-1106096
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2008
record_format invenio
spelling cern-11060962019-09-30T06:29:59Zdoi:10.1088/1126-6708/2008/08/016http://cds.cern.ch/record/1106096engBachas, ConstantinBianchi, MassimoBlumenhagen, RalphLüst, DieterWeigand, TimoComments on Orientifolds without Vector StructureParticle Physics - TheoryWe revisit type I compactifications with a Spin(32)/Z2 gauge bundle that admits no vector structure. We elucidate the relation of this Z2 obstruction to discrete B-field flux and to 't Hooft flux and clarify some subtleties in the T-duality transformation to type IIA intersecting D-brane models. We reexamine the earliest 3-generation GUT model on magnetized D-branes and show its consistency when a discrete B-flux is switched on. We further generalize partially known results for toroidal models to type I compactifications without vector structure and their mirror dual type IIA orientifolds on genuine Calabi-Yau manifolds. We illustrate this by working out the example of the quintic in some detail.arXiv:0805.3696CERN-PH-TH-2008-086oai:cds.cern.ch:11060962008-05-27
spellingShingle Particle Physics - Theory
Bachas, Constantin
Bianchi, Massimo
Blumenhagen, Ralph
Lüst, Dieter
Weigand, Timo
Comments on Orientifolds without Vector Structure
title Comments on Orientifolds without Vector Structure
title_full Comments on Orientifolds without Vector Structure
title_fullStr Comments on Orientifolds without Vector Structure
title_full_unstemmed Comments on Orientifolds without Vector Structure
title_short Comments on Orientifolds without Vector Structure
title_sort comments on orientifolds without vector structure
topic Particle Physics - Theory
url https://dx.doi.org/10.1088/1126-6708/2008/08/016
http://cds.cern.ch/record/1106096
work_keys_str_mv AT bachasconstantin commentsonorientifoldswithoutvectorstructure
AT bianchimassimo commentsonorientifoldswithoutvectorstructure
AT blumenhagenralph commentsonorientifoldswithoutvectorstructure
AT lustdieter commentsonorientifoldswithoutvectorstructure
AT weigandtimo commentsonorientifoldswithoutvectorstructure

Ejemplares similares