Baryon Antibaryon Nonets

Abstract

The baryon-antibaryon SU(3) nonets are proposed as a scheme to classify the increased number of experimentally observed enhancements near the baryon antibaryon mass threshold. The scheme is similar to the Fermi-Yang-Sakata model, which was put forth about fifty years ago in explaining the mesons observed at that time. According to the present scheme, many new baryon-antibaryon bound states are predicted, and their possible productions in quarkonium decays and B decays are suggested for experimental search.

arXiv comment5 pages, 1 figure

References in corpus (17)

• Observation of a near-threshold enhancement in th p pbar mass spectrum from radiative J/psi-->gamma p pbar decays
• Near threshold enhancement of the ppbar mass spectrum in J/Psi decay
• Reinterpreting several narrow `resonances' as threshold cusps
• Observation of $B^{\pm }\to p\bar{p}{K}^{\pm }$
• One-pion-exchange final-state-interaction and the pbar p near threshold enhancement in J/psi -> gamma pbar p decays
• A New State of Baryonium
• Observation of B0bar --> D(*)0 p pbar
• Low-Mass Baryon-Antibaryon Enhancements in B Decays
• Observation of B+ -> p pbar pi+, B0 -> p pbar K0, and B+ -> p pbar K*+
• Observation of B+ to Lambda Lambdabar K+
• Observation of B0 to p Lambdabar pi-
• Observation of a threshold enhancement in the p \bar{Lambda} invariant mass spectrum
• Understanding the Possible Proton Antiproton Bound State Observed by BES Collaboration
• First Observation of the Decays $B^0\to D^{\ast -}p\bar{p}{\pi }^{+}$ and B^{0}\to D^{*-}p\bar{n}$
• On possible $S$-wave bound states for a $N\bar{N}$ system within a constituent quark model
• Observation of p pbar pi^0 and p pbar eta in psi' decays
• Parity, Charge Conjugation and SU(3) Constraints on Threshold Enhancement in $J/\psi$ decays into $\gamma p\bar{p}$ and $Kp\bar{\Lambda }$

Cited by in corpus (9)

• New Hadron States
• Baryonium, tetra-quark state and glue-ball in large N_c QCD
• Productions of X(1835) as baryonium with sizable gluon content
• Measurement of strange baryon-antibaryon interactions with femtoscopic correlations
• Spectroscopy of ${\mathrm{q}}^3{\bar{\mathrm{q}}}^3$-States in Quark Model and Baryon-Antibaryon Enhancements
• Determination of Spin-parity Quantum Numbers for the Narrow Structure Near the $p\bar{\Lambda }$ Threshold in $e^{+}{e}^{-}\to p{K}^{-}\bar{\Lambda }+c.c.$
• Study of $p\bar{\Lambda }$ and $p\bar{\Sigma }$ systems in constituent quark models
• Proposal of Direct Search for Strongly Bound States of ppbar, npbar Systems with High Intensity and Collective pbar beam
• Observation of the decay $B_s^0\to K^{0}p\bar{p}$ and measurement of the $B_{(s)}^0\to K^{0}p\bar{p}$ branching fractions