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Notes on unoriented D-brane instantons

In the first lecture, we discuss basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane instantons, which is our main focus here, and threshold corrections to BPS-saturated couplings. The second lecture is devoted to non-perturbative superpotentials generated by `gaug...

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Detalles Bibliográficos
Autores principales: Bianchi, Massimo, Samsonyan, Marine
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:http://cds.cern.ch/record/1206388
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author Bianchi, Massimo
Samsonyan, Marine
author_facet Bianchi, Massimo
Samsonyan, Marine
author_sort Bianchi, Massimo
collection CERN
description In the first lecture, we discuss basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane instantons, which is our main focus here, and threshold corrections to BPS-saturated couplings. The second lecture is devoted to non-perturbative superpotentials generated by `gauge' and `exotic' instantons living on D3-branes at orientifold singularities. In the third lecture we discuss the interplay between worldsheet and D-string instantons on $T^4/Z_2$. We focus on a 4-fermi amplitude, give Heterotic and perturbative Type I descriptions, and offer a multi D-string instanton interpretation. We conclude with possible interesting developments.
format info:eu-repo/semantics/article
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spelling cern-12063882019-09-30T06:29:59Z http://cds.cern.ch/record/1206388 eng Bianchi, Massimo Samsonyan, Marine Notes on unoriented D-brane instantons Particle Physics - Theory In the first lecture, we discuss basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane instantons, which is our main focus here, and threshold corrections to BPS-saturated couplings. The second lecture is devoted to non-perturbative superpotentials generated by `gauge' and `exotic' instantons living on D3-branes at orientifold singularities. In the third lecture we discuss the interplay between worldsheet and D-string instantons on $T^4/Z_2$. We focus on a 4-fermi amplitude, give Heterotic and perturbative Type I descriptions, and offer a multi D-string instanton interpretation. We conclude with possible interesting developments. info:eu-repo/grantAgreement/EC/FP7/226455 info:eu-repo/semantics/openAccess Education Level info:eu-repo/semantics/article http://cds.cern.ch/record/1206388 2009-09-14
spellingShingle Particle Physics - Theory
Bianchi, Massimo
Samsonyan, Marine
Notes on unoriented D-brane instantons
title Notes on unoriented D-brane instantons
title_full Notes on unoriented D-brane instantons
title_fullStr Notes on unoriented D-brane instantons
title_full_unstemmed Notes on unoriented D-brane instantons
title_short Notes on unoriented D-brane instantons
title_sort notes on unoriented d-brane instantons
topic Particle Physics - Theory
url http://cds.cern.ch/record/1206388
http://cds.cern.ch/record/1206388
work_keys_str_mv AT bianchimassimo notesonunorienteddbraneinstantons
AT samsonyanmarine notesonunorienteddbraneinstantons