Identifying Glueball at 3.02 GeV in Baryonic $B$ Decays

Abstract

We examine the nature of the unknown enhancement around 3 GeV observed by the BABAR collaboration in the $m_{p\bar{p}}$ spectrum of the ${\bar{B}}^0\to p\bar{p}{D}^0$ decay. Suspecting that the peak is a resonance, which can be neither identified as a charmonium state, such as ${\eta }_c$ or $J/\psi$, nor classified as one of the light-flavor mesons, we conclude that it corresponds to a glueball fitted as X(3020) with $(m_X,{\Gamma }_X)=(3020\pm 8,107\pm 30)\text{MeV}$, which could be the first glueball state above 3 GeV. This state also appears in the $m_{p\bar{p}}$ spectrum of the ${\bar{B}}^0\to p\bar{p}{D}^{\ast 0}$ decay.

11 pages, 2 figure, title changed, revised version accepted by PLB

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• A holographic description of heavy-flavoured baryonic matter decay involving glueball
• Triply Heavy $\Omega$ Baryons with JETHAD: A High-Energy Viewpoint
• Determination of $|V_{ub}|$ from exclusive baryonic $B$ decays
• Tetraquark-Jet Systems at the High-Luminosity LHC
• The interaction of glueball and heavy-light flavoured meson in holographic QCD
• Study of $B^{-}\to \Lambda \bar{p}{\eta }^{{(}^{\prime })}$ and ${\bar{B}}_s^0\to \Lambda \bar{\Lambda }{\eta }^{{(}^{\prime })}$ decays
• Corrections to the instanton configuration as baryon in holographic QCD
• Hidden charm ${\mathcal{P}}_{cs}(4338{)}^0$ production in baryonic $B^{-}\to J/\psi \Lambda \bar{p}$ decay