Massive strings from a haunted field theory

Abstract

In this work we present the ${\alpha }^{\prime }$-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 worldsheet 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 worldsheet correlators in conventional bosonic strings (with arbitrary number of massless and mass level one states), and outline a new perspective on massive resonances in string theory.

7 pages. v2: references and comments added. Except for cosmetic changes, it should match the published version

References in corpus (13)

• Resummation of Massive Gravity
• A field-theory motivated approach to symbolic computer algebra
• Double Field Theory at Order ${\alpha }^{\prime }$
• Two-Loop Scattering Amplitudes from the Riemann Sphere
• Green-Schwarz mechanism and ${\alpha }^{\prime }$-deformed Courant brackets
• A Worldsheet Theory for Supergravity
• O(D,D) and the string ${\alpha }^{\prime }$ expansion: An obstruction
• A String Theory Which Isn't About Strings
• On the curious spectrum of duality invariant higher-derivative gravity
• Connecting the ambitwistor and the sectorized heterotic strings
• Multiparticle solutions to Einstein's equations
• Chiral Closed strings: Four massless states scattering amplitude
• An ${\alpha }^{\prime }$-complete theory of cosmology and its tensionless limit

Cited by in corpus (1)

• On-shell representation and further instances of the 2-split behavior of amplitudes