Moduli stabilisation with nilpotent goldstino: vacuum structure and SUSY breaking

Luis Aparicio, Fernando Quevedo, Roberto Valandro

Research output: Contribution to journalArticlepeer-review


Abstract: We study the effective field theory of KKLT and LVS moduli stabilisation scenarios coupled to an anti-D3-brane at the tip of a warped throat. We describe the presence of the anti-brane in terms of a nilpotent goldstino superfield in a supersymmetric effective field theory. The introduction of this superfield produces a term that can lead to a de Sitter minimum. We fix the Kähler moduli dependence of the nilpotent field couplings by matching this term with the anti-D3-brane uplifting contribution. The main result of this paper is the computation, within this EFT, of the soft supersymmetry breaking terms in both KKLT and LVS for matter living on D3-brane (leaving the D7-brane analysis to an appendix). A handful of distinct phenomenological scenarios emerge that could have low energy implications, most of them having a split spectrum of soft masses. Some cosmological and phenomenological properties of these models are discussed. We also check that the attraction between the D3-brane and the anti-D3-brane does not affect the leading contribution to the soft masses and does not destabilise the system.

Original languageEnglish (US)
Article number36
JournalJournal of High Energy Physics
Issue number3
StatePublished - Mar 1 2016


  • Flux compactifications
  • Superstring Vacua
  • Supersymmetry Breaking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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