There is no 690 GeV resonance
High Energy Physics - Phenomenology
2025-10-03 v2
Abstract
In a series of papers starting in 1991, it has been claimed that the Higgs field should be heavier than its now-measured value. To reconcile this idea with reality, it was modified to the assertion that the Higgs field describes two physical degrees of freedom, one of which corresponds to a second Higgs particle with mass 690 GeV. Here I summarize the lack of theoretical and experimental evidence for these claims.
Cite
@article{arxiv.2509.20115,
title = {There is no 690 GeV resonance},
author = {James M. Cline},
journal= {arXiv preprint arXiv:2509.20115},
year = {2025}
}
Comments
4 pages, 1 figure. Comment on arXiv:2509.06479, arXiv:2501.03708, arXiv:2404.03711, arXiv:2308.01429, arXiv:2402.12421, arXiv:2209.06858, arXiv:2208.00920, arXiv:2111.08962, arXiv:2106.06543, arXiv:2007.10837, arXiv:2006.15378, arXiv:1912.00849, arXiv:0710.0458, arXiv:hep-th/0609101, etc. v2: response to reply