Unitarity of closed superstring perturbation theory

Kenichiro Aoki, Eric D'Hoker, D. H. Phong

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)


The scattering amplitudes for the covariant formulation of closed Type II and heterotic superstrings are shown to be equivalent, order-by-order in string perturbation theory, to those of the light-cone interacting string picture. This establishes the unitarity of covariant superstring perturbation theory and the Lorentz invariance of the light-cone superstring.

Original languageEnglish
Pages (from-to)149-230
Number of pages82
JournalNuclear Physics, Section B
Issue number1
Publication statusPublished - 1990 Sept 24
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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