Search for a hidden strange baryon-meson bound state from $\varphi$ production in a nuclear medium

Abstract

We investigate the hidden strange light baryon-meson system. With the resonating-group method, two bound states, ${\eta }^{\prime }-N$ and $\varphi -N$, are found in the quark delocalization color screening model. Focusing on the $\varphi -N$ bound state around 1950\,MeV, we obtain the total decay width of about 4\,MeV by calculating the phase shifts in the resonance scattering processes. To study the feasibility of an experimental search for the $\varphi -N$ bound state, we perform a Monte Carlo simulation of the bound state production with an electron beam and a gold target. In the simulation, we use the CLAS12 detector with the Forward Tagger and the BONUS12 detector in Hall B at Jefferson Lab. Both the signal and the background channels are estimated. We demonstrate that the signal events can be separated from the background with some momentum cuts. Therefore it is feasible to experimentally search for the $\varphi -N$ bound state through the near threshold $\varphi$ meson production from heavy nuclei.

19 pages, 8 figures, version published in Physical Review C

References in corpus (6)

• Constituent quark model study of the meson spectra
• Quark-model study of few-baryon systems
• Dynamical Coupled-Channel Model of $\pi N$ Scattering in the W $\le$ 2 GeV Nucleon Resonance Region
• Quark models of dibaryon resonances in nucleon-nucleon scattering
• Data analysis techniques, differential cross sections, and spin density matrix elements for the reaction $\gamma p\to \varphi p$
• Search for the ϕ-N bound state from ϕmeson subthreshold production

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• Indication of a p-$\varphi$ bound state from a correlation function analysis
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• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
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• Hidden strange pentaquark in constituent quark models
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• The ${\Omega }_{cc}$ resonances with negative parity in the chiral constituent quark model
• Exploring the $\varphi \text{-}\alpha$ interaction via femtoscopic study
• QCD sum rule study for hidden-strange pentaquarks
• Prospects for detecting the hidden-strange pentaquarklike state $N^{\ast }(2080)$ in the ${\pi }^{-}p\to \varphi n$ reaction
• Studies on the $K^{\ast }\Sigma$ bound-state via $K^{+}p\to K^{+}\varphi p$
• Investigate the pentaquark resonance in the $NK$ system
• Production potential of hidden-strange molecular pentaquarks through the ${\pi }^{-}p\to K^{\ast }\Sigma$ process
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• $\Phi$ and $J/\Psi$ Mesons in Cold Nuclear Matter
• Probing $\varphi$N interaction through bound states of $\varphi \text{N-}\alpha$ system