Sewing string tree vertices with ghosts

Sandoval Junior, Leonidas

doi:10.1590/S0103-97332002000100035

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Regular Articles • Braz. J. Phys. 32 (1) • Mar 2002 • https://doi.org/10.1590/S0103-97332002000100035 linkcopy

Sewing string tree vertices with ghosts

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

It is shown how to sew string vertices with ghosts at tree level in order to produce new tree vertices using the Group Theoretic approach to String Theory. It is then verified the BRST invariance of the sewn vertex and shown that it has the correct ghost number.

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