Leading four-Goldstone inelasticity in custodial partial waves
Abstract
Computes the complete leading O(p^8) four-Goldstone (2→4) unitarity cut in the massless parity-even O(4)/O(3) Goldstone effective field theory, fixing the coefficient γ_11 = (5.0349 ± 0.0003) × 10^−7 that any inelastic completion matched through O(p^8) must reproduce. Also establishes the exact leading-order positive partial-wave sum rule and the resolved isovector odd-J spectrum. Data and code archived at Zenodo.
Links
[DOI] [Publisher] [Zenodo (data/code)]
Cite
@article{2026_four_goldstone_inelasticity_plb,
title = {Leading four-Goldstone inelasticity in custodial partial waves},
author = {Samir Varma},
journal = {Physics Letters B},
year = {2026},
doi = {10.1016/j.physletb.2026.140915},
url = {https://www.sciencedirect.com/science/article/pii/S0370269326007653},
}