Deriving on-shell open string field amplitudes without using Feynman rules | Zendy

Toru Masuda | Zendy; Hiroaki Matsunaga | Zendy

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Deriving on-shell open string field amplitudes without using Feynman rules

Author(s) -

Toru Masuda,

Hiroaki Matsunaga

Publication year - 2021

Publication title -

progress of theoretical and experimental physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.887

H-Index - 53

ISSN - 2050-3911

DOI - 10.1093/ptep/ptab159

Subject(s) - physics , string field theory , open string , feynman diagram , scattering amplitude , invariant (physics) , amplitude , non critical string theory , mathematical physics , string (physics) , gauge theory , theoretical physics , quantum electrodynamics , quantum mechanics

We present a series of new gauge-invariant quantities in Witten’s open string field theory. They are defined for a given set of open string states which satisfy the physical state condition around a classical solution. For known classical solutions, we demonstrate that these gauge-invariant quantities compute on-shell tree-level scattering amplitudes around the corresponding D-brane configuration.

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