Coupling Selection Rules in Heterotic Calabi-Yau Compactifications
High Energy Physics - Theory
2025-09-03 v2 High Energy Physics - Phenomenology
Abstract
We study coupling selection rules of chiral matter fields in heterotic string theory with standard embedding. These selection rules are determined by topological properties of Calabi-Yau threefolds. We classify coupling selection rules on complete intersection Calabi-Yau threefolds for . It is found that all of these selection rules for are understood by combinations of only five types of fusion rules.
Keywords
Cite
@article{arxiv.2504.09773,
title = {Coupling Selection Rules in Heterotic Calabi-Yau Compactifications},
author = {Jun Dong and Tatsuo Kobayashi and Ryusei Nishida and Satsuki Nishimura and Hajime Otsuka},
journal= {arXiv preprint arXiv:2504.09773},
year = {2025}
}
Comments
v2: 31 pages, published version