Computations of superstring amplitudes in pure spinor formalism via Cadabra
High Energy Physics - Theory
2016-08-17 v6
Abstract
The discovery of pure spinor formalism makes the computation of superstring scattering amplitudes possible. In this paper, we will illustrate how computer algebra system Cadabra is used in computing the supersymmetric amplitude in pure spinor formalism and provide the source code that computes the tree-level massless 5-gluon amplitude.
Keywords
Cite
@article{arxiv.1607.00463,
title = {Computations of superstring amplitudes in pure spinor formalism via Cadabra},
author = {Ke-Sheng Sun and Xiang-Mao Ding and Fei Sun and Hai-Bin Zhang},
journal= {arXiv preprint arXiv:1607.00463},
year = {2016}
}
Comments
23 pages,3 figure.v1-v5:comments are added, several mistakes are corrected, some references are added