Bosonic sectorized strings and the $(DF)^{2}$ theory

Understand

In this work, we investigate the bosonic chiral string in the sectorized interpretation, computing its spectrum, kinetic action and $3$-point amplitudes.

• As expected, the bosonic ambitwistor string is recovered in the tensionless limit.
• We also consider an extension of the bosonic model with current algebras.
• In that case, we compute the effective action and show that it is essentially the same as the action of the mass-deformed $(DF)^{2}$ theory found by Johansson and Nohle.