Closed string disk amplitudes in the pure spinor formalism

2020/11/30 by Andreas Bischof, Michael Haack
Mathematics · Physics and Astronomy · Social Sciences · #Amplitude #Black Holes and Theoretical Physics #Conformal map #Formalism (music) #Homotopy and Cohomology in Algebraic Topology #International Science and Diplomacy #Pure spinor #Spinor #String (physics) #String field theory #String theory #Zero mode #hep-th

paper · pdf · doi:10.1007/jhep02(2021)206

published as JHEP 02 (2021) 206 · 28 pages, v2: Small changes; in particular added footnote 2 and reference [11]; version published by JHEP

openalex created_date 2020/12/07 · openalex publication_date 2021/02/01 · arxiv created 2021/03/02 · arxiv updated 2022/01/27 · openalex updated_date 2026/08/05

Abstract

A bstract We evaluate closed string disk amplitudes in the pure spinor formalism. We focus on low point functions (two- and one-point functions) but our analysis is also relevant for higher n -point functions. Amongst others we discuss issues arising due to the gauge fixing of the conformal Killing group of the disk and due to the zero mode prescription in the pure spinor formalism. As expected, in the end we find agreement with the known results from the RNS formalism.

Citations

• Comments on BRST quantization of strings
• Irreducible Unitary Representations of the Lorentz Group
• Type I supergravity effective action from pure spinor formalism
• An introduction to the covariant quantization of superstrings
• Disc amplitudes, picture changing and space-time actions
• BRST quantization of the pure spinor superstring
• Superstring scattering from O-planes