PSS: A FORM Program to Evaluate Pure Spinor Superspace Expressions

TL;DR

This paper introduces a FORM program designed to efficiently expand pure spinor superfield expressions, aiding in deriving superstring effective actions from scattering amplitude calculations within the pure spinor formalism.

Contribution

The paper presents a customizable FORM program that streamlines the expansion of pure spinor superspace expressions, facilitating superstring effective action computations.

Findings

Efficient expansion of pure spinor superfield expressions achieved

Program customization allows adaptation to various calculations

Supports derivation of superstring effective actions

Abstract

A FORM program which is used to efficiently expand in components pure spinor superfield expressions of kinematic factors is presented and comments on how it works are made. It is highly customizable using the standard features of FORM and can be used to help obtaining superstring effective actions from the scattering amplitudes computed with the pure spinor formalism.