Internal supersymmetry and small-field Goldstini

Diederik Roest, Pelle Werkman, Yusuke Yamada*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The dynamics of the Goldstino mode of spontaneously broken supersymmetry is universal, being fully determined by the non-linearly realized symmetry. We investigate the small-field limit of this theory. This model non-linearly realizes an alternative supersymmetry algebra with vanishing anti-commutators between the fermionic generators, much like an internal supersymmetry. This Goldstino theory is akin to the Galilean scalar field theory that arises as the small-field limit of Dirac-Born-Infeld theory and non-linearly realizes the Galilean symmetry. Indeed, the small-field Goldstino is the partner of a complex Galilean scalar field under conventional supersymmetry. We close with the generalization to extended internal supersymmetry and a discussion of its higher-dimensional origin.

Original languageEnglish
Article number190
JournalJournal of High Energy Physics
Issue number5
Publication statusPublished - 2018 May 1
Externally publishedYes


  • Extended Supersymmetry
  • Space-Time Symmetries
  • Superspaces
  • Supersymmetry Breaking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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