A $bb\bar{b}\bar{b}$ di-bottomonium at the LHC?

Abstract

We study the case of a di-bottomonium $bb\bar{b}\bar{b}$ particle at the LHC. Its mass and decay width are obtained within a new model of diquark-antidiquark interactions in tetraquarks. The same model solves several open problems on the phenomenology of the experimentally better known $X,Z$ states. We show that the $bb\bar{b}\bar{b}$ tetraquark is expected approximately 100 MeV below threshold, and compare to a recent analysis by LHCb seeking it in the ${\rm Y}\mu \mu$ final state.

arXiv comment7 pages, 3 figures. V2: figure added, figures corrected and updated, typo corrected

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