BRST-invariant tadpole calculation and diagrammatic formalism in the bosonic string

Journal Article · Mon Aug 15 00:00:00 EDT 1988 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.38.1150· OSTI ID:6920233

Kobayashi, T; Konno, H; Suzuki, T

Planar and nonorientable tadpole operators are evaluated in the Becchi-Rouet-Stora-Tyutin- (BRST-) invariant formalism. It is shown that the insertion of (-1)/sup N//sup >//sup c/+1/2$ (N/sub c/ = ghost-number operator) is needed for keeping the BRST invariance. We shall also discuss the extension of the BRST-invariant diagrammatic calculation to arbitrary diagrams.

• Research Organization: Institute of Physics, University of Tsukuba, Ibaraki 305, Japan
• OSTI ID: 6920233
• Journal Information: Phys. Rev. D; (United States), Vol. 38:4
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
STRING MODELS
INVARIANCE PRINCIPLES
PROPAGATOR
SPACE-TIME
UNITARITY
VACUUM STATES
COMPOSITE MODELS
EXTENDED PARTICLE MODEL
MATHEMATICAL MODELS
PARTICLE MODELS
QUARK MODEL
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