LHC as a photon-photon collider: bounds on $\Gamma_{X\to\gamma\gamma}$
High Energy Physics - Phenomenology
2021-02-24 v3 High Energy Physics - Experiment
Abstract
In the relatively recent CMS data, there is a hint on the existence of a resonance with the mass 28 GeV coupling to muons. Such a resonance should also couple to photons through the fermion loop, therefore it can be searched for in ultraperipheral collisions (UPC) of protons. We set an upper bound on the coupling constant from the data on pair production in UPC at the LHC. Our approach can be used for similar resonances should they appear in the future.
Cite
@article{arxiv.2012.01599,
title = {LHC as a photon-photon collider: bounds on $\Gamma_{X\to\gamma\gamma}$},
author = {S. I. Godunov and E. K. Karkaryan and V. A. Novikov and A. N. Rozanov and M. I. Vysotsky and E. V. Zhemchugov},
journal= {arXiv preprint arXiv:2012.01599},
year = {2021}
}
Comments
9 pages, 2 figures, 1 table; version accepted for publication in Physical Review D