Supersymmetric embedding of antibrane polarization
| Autor: | Bert Vercnocke, Magnus Tournoy, Jan Pieter van der Schaar, Lars Aalsma |
|---|---|
| Přispěvatelé: | String Theory (ITFA, IoP, FNWI), Faculty of Science, ITFA (IoP, FNWI) |
| Rok vydání: | 2018 |
| Předmět: |
High Energy Physics - Theory
Physics 010308 nuclear & particles physics High Energy Physics::Phenomenology FOS: Physical sciences Supersymmetry String theory 01 natural sciences Supersymmetry breaking Massless particle General Relativity and Quantum Cosmology High Energy Physics::Theory Theoretical physics High Energy Physics - Theory (hep-th) De Sitter universe Metastability 0103 physical sciences Embedding Goldstino 010306 general physics |
| Zdroj: | Physical Review D. Particles, Fields, Gravitation, and Cosmology, 98(8):086019. American Institute of Physics Physical Review |
| ISSN: | 2470-0029 2470-0010 1550-7998 |
| DOI: | 10.1103/physrevd.98.086019 |
| Popis: | We study the supersymmetry breaking induced by probe anti-D3-branes at the tip of the Klebanov-Strassler throat geometry. Antibranes inside this geometry polarize and can be described by an NS5-brane wrapping an $S^2$. When the number of antibranes is small compared to the background flux a metastable state exists that breaks supersymmetry. We present a manifestly supersymmetric effective model that realizes the polarized metastable state as a solution, spontaneously breaking the supersymmetry. The supersymmetric model relies crucially on the inclusion of Kaluza-Klein (matrix) degrees of freedom on the $S^2$ and two supersymmetric irrelevant deformations of ${\cal N}=4$ super-Yang-Mills (SYM), describing a large number of supersymmetric D3-branes in the IR. We explicitly identify the massless Goldstino and compute the spectrum of massive fluctuations around the metastable supersymmetry-breaking minimum, finding a Kaluza-Klein tower with masses warped down from the string scale. Below the Kaluza-Klein scale the massive tower can be integrated out and supersymmetry is realized nonlinearly. We comment on the effect of the Kaluza-Klein modes on the effective description of de Sitter vacua in string theory and inflationary model building. Comment: v1: 9 pages, v2: added references, changed title slightly and fixed typos |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|