Massive strings from a field theory with ghosts

0585859 - FZÚ 2025 RIV US eng J - Journal Article
Carabine, Nicholas - Jusinskas, Renann Lipinski
Massive strings from a field theory with ghosts.
Physical Review Letters. Roč. 132, č. 16 (2024), č. článku 161602. ISSN 0031-9007. E-ISSN 1079-7114
Grant - others:AV ČR(CZ) LQ100102101
Program: Prémie Lumina quaeruntur
Institutional support: RVO:68378271
Keywords : field and string theory models and techniques * scattering amplitudes * bosonic string * chiral string * ghosts
OECD category: Particles and field physics
Impact factor: 8.6, year: 2022
Method of publishing: Open access

In this Letter, we present the α'-exact background equations of motion of the bosonic chiral string (also known as Hohm-Siegel-Zwiebach model), with the spin-two ghost fields integrated out. This is the first instance of a world sheet model in which all corrections are fully determined in a generic curved spacetime. As a concrete cross-check, we find complete agreement between all three-point and a sample of four-point tree-level scattering amplitudes computed using field theory methods and the chiral string prescription. These equations of motion provide a field theoretical shortcut to compute world sheet correlators in conventional bosonic strings (with an arbitrary number of massless and mass-level-one states) and outline a new perspective on massive resonances in string theory.
Permanent Link: https://hdl.handle.net/11104/0353506