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

0554890 - MÚ 2023 RIV US eng J - Journal Article
Masuda, T. - Matsunaga, Hiroaki
Deriving on-shell open string field amplitudes without using Feynman rules.
Progress of Theoretical and Experimental Physics. Roč. 2022, č. 1 (2022), č. článku 013B06. ISSN 2050-3911
Grant - others:AV ČR(CZ) AP1801
Program: Akademická prémie - Praemium Academiae
Institutional support: RVO:67985840
Keywords : Feynman rules * open string field theory
OECD category: Pure mathematics
Impact factor: 8.3, year: 2022
Method of publishing: Open access
https://doi.org/10.1093/ptep/ptab159

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.
Permanent Link: http://hdl.handle.net/11104/0329511