Hidden Zeros and $2$-split via BCFW Recursion Relation
High Energy Physics - Theory
2026-05-05 v2
Abstract
In this paper, we provide another angle to understand recent discoveries, i.e., the hidden zeros and corresponding 2-split behavior using the BCFW recursion relation. For the hidden zeros, we show that although the BCFW recursion relation is not directly applicable for computing amplitudes of the non-linear sigma model, we can indeed prove the zeros using the modified BCFW recursion relation. Our work also indicates that for the 2-split to hold, the current should be carefully defined.
Cite
@article{arxiv.2504.14215,
title = {Hidden Zeros and $2$-split via BCFW Recursion Relation},
author = {Bo Feng and Liang Zhang and Kang Zhou},
journal= {arXiv preprint arXiv:2504.14215},
year = {2026}
}
Comments
28 pages, 8 figures