English

Elliptic scattering equations

High Energy Physics - Theory 2016-07-07 v3 Mathematical Physics math.MP

Abstract

Recently the CHY approach has been extended to one loop level using elliptic functions and modular forms over a Jacobian variety. Due to the difficulty in manipulating these kind of functions, we propose an alternative prescription that is totally algebraic. This new proposal is based on an elliptic algebraic curve embedded in a CP2\mathbb{C}P^2 space. We show that for the simplest integrand, namely the ngon{\rm n-gon}, our proposal indeed reproduces the expected result. By using the recently formulated Λ\Lambda-algorithm, we found a novel recurrence relation expansion in terms of tree level off-shell amplitudes. Our results connect nicely with recent results on the one-loop formulation of the scattering equations. In addition, this new proposal can be easily stretched out to hyperelliptic curves in order to compute higher genus.

Keywords

Cite

@article{arxiv.1605.01446,
  title  = {Elliptic scattering equations},
  author = {Carlos Cardona and Humberto Gomez},
  journal= {arXiv preprint arXiv:1605.01446},
  year   = {2016}
}

Comments

v3: Typo

R2 v1 2026-06-22T13:53:35.816Z