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arXiv · 2408.04722

New Structures in the $J/ψ$ $J/ψ$ Mass Spectrum at CMS

Xining Wang·Kai Yi
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Abstract

A search is reported for structures near the $J/ψ$ $J/ψ$ mass threshold using a dataset of proton-proton collisions at $\sqrt{s} \: =13 \: \mathrm{TeV} $ recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of about $135 \: \mathrm{fb^{-1}}$. Two structures are observed with a significance exceeding $5σ$ and evidence of an additional structure is reported with a local significance of $4.7σ$.

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Xining Wang, Kai Yi. 2024-08-08. New Structures in the $J/ψ$ $J/ψ$ Mass Spectrum at CMS. https://arxiv.org/abs/2408.04722

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