Corpus ID: 227253944

# LHC as a photon-photon collider: bounds on $\Gamma_{X\to\gamma\gamma}$

@article{Godunov2020LHCAA,
title={LHC as a photon-photon collider: bounds on \$\Gamma\_\{X\to\gamma\gamma\}\$},
author={S. Godunov and E. Karkaryan and V. Novikov and A. Rozanov and M. Vysotsky and E. Zhemchugov},
journal={arXiv: High Energy Physics - Phenomenology},
year={2020}
}
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 $X \gamma \gamma$ coupling constant from the data on $\mu^+ \mu^-$ pair production in UPC at the LHC. Our approach can be used for similar resonances should they appear in the future.

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