Low-energy effective Lagrangian of heterotic string theory

Journal Article · Sun Feb 15 00:00:00 EST 1987 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.35.1400· OSTI ID:6139788

Kikuchi, Y; Marzban, C

By studying the four-point tree amplitudes in heterotic string theory, we explicitly show that the action involves only curvatures of a generalized connection, which differs from the connection found at the three-point level. It is also shown that the curvature tensor and the Yang-Mills gauge field appear as the perfect square (R/sup 2/-F/sup 2/)/sup 2/ which holds even for this generalized connection. Some considerations of higher-derivative interactions and their implications for the N = 2 sigma model are made.

• Research Organization: Institute of Field Physics, Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514
• OSTI ID: 6139788
• Journal Information: Phys. Rev. D; (United States), Vol. 35:4
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
STRING MODELS
TENSOR FORCES
BOSONS
COUPLING CONSTANTS
GAUGE INVARIANCE
GRAVITONS
SCATTERING AMPLITUDES
SIGMA MODEL
SPACE-TIME
SPIN
YANG-MILLS THEORY
AMPLITUDES
ANGULAR MOMENTUM
COMPOSITE MODELS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
GRAVITATIONAL RADIATION
INVARIANCE PRINCIPLES
MASSLESS PARTICLES
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUARK MODEL
RADIATIONS
645400* - High Energy Physics- Field Theory