Divergences of Discrete States Amplitudes and Effective Lagrangian in 2D String Theory

Details Divergences of Discrete States Amplitudes and Effective Lagrangian in 2D String Theory Divergences of Discrete States Amplitudes and Effective Lagrangian in 2D String Theory

1992-05-08

arxiv.org/abs/hep-th/9205020v1

Mod.Phys.Lett. A8 (1993) 1469-1476

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

Scattering amplitudes for discrete states in 2D string theory are considered. Pole divergences of tree-level amplitudes are extracted and residues are interpreted as renormalized amplitudes for discrete states. An effective Lagrangian generating renormalized amplitudes for open string is written and corresponding Ward identities are presented. A relation of this Lagrangian with homotopy Lie algebra is discussed.

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