Covariant Multiloop Superstring Amplitudes

Abstract

In these proceedings, the multiloop amplitude prescription using the super-Poincare invariant pure spinor formalism for the superstring is reviewed. Unlike the RNS prescription, there is no sum over spin structures and surface terms coming from the boundary of moduli space can be ignored. Massless N-point multiloop amplitudes vanish for N<4, which implies (with two mild assumptions) the perturbative finiteness of superstring theory. And R^4 terms receive no multiloop corrections in agreement with the Type IIB S-duality conjecture of Green and Gutperle.

Strings 2004 talk

References in corpus (4)

• ICTP Lectures on Covariant Quantization of the Superstring
• Covariant One-Loop Amplitudes in D=11
• On the b-antighost in the Pure Spinor Quantization of Superstrings
• On the cohomology and inner products of the Berkovits superparticle and superstring

Cited by in corpus (12)

• Multiloop Superstring Amplitudes from Non-Minimal Pure Spinor Formalism
• Two-Loop Superstrings V: Gauge Slice Independence of the N-Point Function
• Six Gluon Open Superstring Disk Amplitude, Multiple Hypergeometric Series and Euler-Zagier Sums
• Origin of Pure Spinor Superstring
• Higher genus superstring amplitudes from the geometry of moduli spaces
• Hilbert space of curved βγsystems on quadric cones
• Pictures from Super Chern-Simons Theory
• $A_{\infty }$-Algebra from Supermanifolds
• Factorization of the Two Loop Four-Particle Amplitude in Superstring Theory Revisited
• On D-Brane Boundary State Analysis in Pure-Spinor Formalism
• DDF Construction and D-Brane Boundary States in Pure Spinor Formalism
• Factorization and Unitarity in Superstring Theory