2013/02/28 by Y. K. Hsiao, Chao-Qiang Geng, C. Q. Geng · 14 citations
Physics and Astronomy · #Baryon #Glueball #High-Energy Particle Collisions Research #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Resonance (particle physics) #Spectrum (functional analysis) #State (computer science) #hep-ex #hep-ph
paper · pdf · doi:10.1016/j.physletb.2013.10.008
published in Physics Letters B 727(1-3), 168-171 (Elsevier BV) · 11 pages, 2 figure, title changed, revised version accepted by PLB
arxiv created 2013/10/09 · openalex publication_date 2013/10/09 · arxiv updated 2013/11/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We examine the nature of the unknown enhancement around 3 GeV observed by the BaBar Collaboration in the mpp¯ spectrum of the B¯0→pp¯D0 decay. Suspecting that the peak is a resonance, which can be neither identified as a charmonium state, such as ηc or J/ψ, nor classified as one of the light-flavor mesons, we conclude that it corresponds to a glueball fitted as X(3020) with (mX,ΓX)=(3020±8,107±30)MeV, which could be the first glueball state above 3 GeV. This state also appears in the mpp¯ spectrum of the B¯0→pp¯D⁎0 decay.