Indication of a p-$\varphi$ bound state from a correlation function analysis

Abstract

The existence of a nucleon-$\varphi$ (N-$\varphi$) bound state has been subject of theoretical and experimental investigations for decades. In this letter, indication of a \pphi bound state is found, using for the first time two-particle correlation functions as alternative to invariant mass spectra. Newly available lattice calculations for the spin 3/2 \Nphi interaction by the HAL QCD collaboration are used to constrain the spin 1/2 counterpart from the fit of the experimental \pphi correlation function measured by ALICE. The corresponding scattering length and effective range are $f_0^{(1/2)}=\left(-1.54_{-0.53}^{+0.53}(stat.{)}_{-0.09}^{+0.16}(syst.)+i\cdot 0.00_{-0.00}^{+0.35}(stat.{)}_{-0.00}^{+0.16}(syst.)\right)$~fm and $d_0^{(1/2)}=\left(0.39_{-0.09}^{+0.09}(stat.{)}_{-0.03}^{+0.02}(syst.)+i\cdot 0.00_{-0.04}^{+0.00}(stat.{)}_{-0.02}^{+0.00}(syst.)\right)$~fm, respectively. The results imply the appearance of a \pphi bound state with an estimated binding energy in the range of $12.8-56.1$ MeV.

References in corpus (16)

• Nuclear Force from Lattice QCD
• Unveiling the strong interaction among hadrons at the LHC
• Study of the strong interaction among hadrons with correlations at the LHC
• Experimental evidence for an attractive p-$\varphi$ interaction
• Search for a common baryon source in high-multiplicity pp collisions at the LHC
• Interaction of vector mesons with baryons and nuclei
• Measurement of the in-medium phi-meson width in proton-nucleus collisions
• Femtoscopic study on $D{D}^{\ast }$ and $D{\bar{D}}^{\ast }$ interactions for $T_{cc}$ and $X(3872)$
• Attractive $N$-$\varphi$ Interaction and Two-Pion Tail from Lattice QCD near Physical Point
• Forward coherent $\varphi$-meson photoproduction from deuterons near threshold
• Accessing the strong interaction between $\Lambda$ baryons and charged kaons with the femtoscopy technique at the LHC
• Investigating the role of strangeness in baryon$-$antibaryon annihilation at the LHC
• A method to remove lower order contributions in multi-particle femtoscopic correlation functions
• New nuclear three-body clusters ϕ{NN}
• The $\varphi p$ bound state in the unitary coupled-channel approximation
• Search for the ϕ-N bound state from ϕmeson subthreshold production

Cited by in corpus (13)

• On a possible ${}_{\varphi }^3$H hypernucleus with HAL QCD interaction
• Examination of the $\varphi -NN$ bound-state problem with lattice QCD $N-\varphi$ potentials
• Searching for femtoscopic signatures of the $D\bar{D}(I=0)[X(3700)]$ bound state
• Exploring the $\varphi \text{-}\alpha$ interaction via femtoscopic study
• Analysis of spectral modification of $\varphi$ mesons at finite density using a transport approach in the 12 GeV pA reactions
• The $\varphi NN,J/\psi NN,{\eta }_{c}NN$ systems based on HAL QCD interactions
• Study of light $\varphi$-mesic nuclei with HAL QCD $\varphi N$ interactions
• Heavy-heavy and heavy-light mesons in cold nuclear matter
• p--$\varphi$ femtoscopic correlation analysis using a dynamical model
• $B_c^{\pm }$-${}^{12}$C states and detailed study of momentum space method for ${\rm Y}$- and ${\eta }_b$-nucleus bound states
• Probing $\varphi$N interaction through bound states of $\varphi \text{N-}\alpha$ system
• Possible Existence of ${}_{\varphi }^3$H, ${}_{\varphi }^4$H, ${}_{\varphi }^4$He, and ${}_{\varphi }^5$He Nuclei
• Low-energy $N\varphi$ scattering from a pole-enhanced triangle diagram