Gauge-invariant modification of Witten's open superstring

Autor:	Stuart Samuel, Olaf Lechtenfeld
Rok vydání:	1988
Předmět:	Physics Nuclear and High Energy Physics Introduction to gauge theory Particle physics Superstring theory Green–Schwarz mechanism Propagator Supersymmetry String field theory High Energy Physics::Theory symbols.namesake symbols Feynman diagram Gauge theory Mathematical physics
Zdroj:	Physics Letters B. 213:431-438
ISSN:	0370-2693
Popis:	A violation of gauge invariance in Witten's open superstring field theory has recently been discovered. We propose a modification which resolves this problem by avoiding the collision of picture-changing operators. Feynman rules for the modified, gauge-invariant theory are presented, including a useful representation for the Ramond propagator. All four-point amplitudes are off-shell finite, agree on-shell with the Polyakov approach and exhibit decoupling of spurious physical states.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7750f1e0a307ab6ae7d69440905d27a4 https://doi.org/10.1016/0370-2693(88)91287-7 Zobrazit plný text záznamu