Light scalar mesons and two-kaon correlation functions

Abstract

It is shown that the recent data on the $K_S^0{K}^{+}$ correlation in Pb-Pb interactions agree with the data on the $\gamma \gamma \to \eta {\pi }^0$ and $\varphi \to \eta {\pi }^0\gamma$ reactions and support the four-quark model of the $a_0(980)$ meson. It is shown that the data does not contradict the validity of the Gaussian assumption. The study of two-kaon correlations could provide more information about light scalar mesons after increasing the accuracy of the experimental and theoretical descriptions.

12 pages, 3 figures. Updated version corresponding to PRD article

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Cited by in corpus (13)

• Observation of the Semileptonic Decay $D^0\to a_0(980{)}^{-}{e}^{+}{\nu }_e$ and Evidence for $D^{+}\to a_0(980{)}^0{e}^{+}{\nu }_e$
• Semileptonic Decays of Charmed Mesons to Light Scalar Mesons
• Measuring K${}_{\mathrm{S}}^0$K${}^{\pm }$ interactions using pp collisions at $\sqrt{s}=7$ TeV
• Investigating the composition of the K${}_0^{\ast }(700)$ state with ${\pi }^{\pm }$K${}_{\mathrm{S}}^0$ correlations at the LHC
• The $a_0(980)$ physics in semileptonic $D^0$ and $D^{+}$ decays
• The perturbative QCD predictions for the decay B^{0}_{s}\rightarrow SS(a_{0}(980),f_{0}(980),f_{0}(500))
• Semileptonic decays $D\to \eta \pi e^{+}{\nu }_e$ in the $a_0(980)$ region
• Study of light scalar mesons through $D_s^{+}\to {\pi }^0{\pi }^0{e}^{+}{\nu }_e$ and $K_S^0{K}_S^0{e}^{+}{\nu }_e$ decays
• Resonant contributions to three-body $B_{(s)}\to [D^{(\ast )},{\bar{D}}^{(\ast )}]K^{+}{K}^{-}$ decays in the perturbative QCD approach
• Fate of Light Scalar Mesons
• Investigating $B_s$ three-body decays to scalar mesons in perturbative QCD approach
• Study of the process $e^{+}{e}^{-}\to \eta \gamma \to 7\gamma$ in the energy range $\sqrt{s}$ = 1.07 -- 2 GeV
• K${}_{\mathrm{S}}^0$K${}_{\mathrm{S}}^0$ and K${}_{\mathrm{S}}^0$K${}^{\pm }$ femtoscopy in pp collisions at $\sqrt{s}=$ 5.02 and 13 TeV