TY - JOUR
T1 - Internal supersymmetry and small-field Goldstini
AU - Roest, Diederik
AU - Werkman, Pelle
AU - Yamada, Yusuke
N1 - Funding Information:
We are grateful to F. Farakos, R. Kallosh, R. Klein and D. Stefanyszyn for stimulating discussions, and in particular S. Garcia-Saenz for pointing out the Fierz identity for the putative quartic fermion interaction. The work of YY is supported by SITP and by the US National Science Foundation grant PHY-1720397. PW acknowledges the Dutch funding agency Netherlands Organisation for Scientific Research (NWO) for financial support. YY is grateful to the University of Groningen for the hospitality when this work was initiated.
Publisher Copyright:
© 2018, The Author(s).
PY - 2018/5/1
Y1 - 2018/5/1
N2 - 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.
AB - 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.
KW - Extended Supersymmetry
KW - Space-Time Symmetries
KW - Superspaces
KW - Supersymmetry Breaking
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U2 - 10.1007/JHEP05(2018)190
DO - 10.1007/JHEP05(2018)190
M3 - Article
AN - SCOPUS:85047975565
SN - 1126-6708
VL - 2018
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 5
M1 - 190
ER -