Supersymmetry breaking effects using the pure spinor formalism of the superstring

Nathan Berkovits, Edward Witten

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The SO(32) heterotic superstring on a Calabi-Yau manifold can spontaneously break supersymmetry at one-loop order even when it is unbroken at tree-level. It is known that calculating the supersymmetry-breaking effects in this model gives a relatively accessible test case of the subtleties of superstring perturbation theory in the RNS formalism. In the present paper, we calculate the relevant amplitudes in the pure spinor approach to superstring perturbation theory, and show that the regulator used in computing loop amplitudes in the pure spinor formalism leads to subtleties somewhat analogous to the more familiar subtleties of the RNS approach.

Original languageEnglish (US)
Article number127
JournalJournal of High Energy Physics
Issue number6
StatePublished - Jun 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


  • Superstrings and Heterotic Strings
  • Supersymmetry Breaking


Dive into the research topics of 'Supersymmetry breaking effects using the pure spinor formalism of the superstring'. Together they form a unique fingerprint.

Cite this