English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We construct gauge invariant 1PI effective action for the NS sector of typeII and heterotic string field theory. By construction, zero eigenvalues of thekinetic operator of this action determine the renormalized physical masses, andtree level amplitudes computed from this action (after gauge fixing) give theloop corrected S-matrix elements. Using this formalism we can give a simpleproof of the result that the renormalized physical masses do not depend on thechoice of local coordinate system and locations of picture changing operatorsused in defining the off-shell amplitude. We also eliminate the need for aninfrared regulator in dealing with tadpoles of massless fields.

Gauge Invariant 1PI Effective Action for Superstring Field Theory