Zero-norm states and enlarged gauge symmetries of the closed bosonic string with massive background fields

Jen-Chi Lee*, Burt A. Ovrut

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

Conformal symmetry on the world-sheet is used to derive the effective equations of motion of target space fields for the closed bosonic string up to the second massive level. These equations are calculated in the weal field approximation, but to all orders in the inverse Planck scale α′. Enlarged gauge symmetries of the target space fields are derived directly from both types of zero-norm states in the bosonic string spectrum. Some of these symmetries can be generated by world-sheet (1, 0) or (0, 1) primary field generators.

Original languageEnglish
Pages (from-to)222-244
Number of pages23
JournalNuclear Physics, Section B
Volume336
Issue number2
DOIs
StatePublished - 28 May 1990

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