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Magnetic dipole moments of the Zc(4020)+ , Zc(4200)+ , Zcs(4000)+ and Zcs(4220)+ states in light-cone QCD

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The magnetic dipole moments of the Zc(4020) , Zc(4200) , Zcs(4000) + and Zcs(4220) + states are extracted in the framework of the light-cone QCD sum rules. In the calculations,… Click to show full abstract

The magnetic dipole moments of the Zc(4020) , Zc(4200) , Zcs(4000) + and Zcs(4220) + states are extracted in the framework of the light-cone QCD sum rules. In the calculations, we use the hadronic molecular form of interpolating currents, and photon distribution amplitudes to get the magnetic dipole moment of Zc(4020) , Zc(4200) , Zcs(4000) + and Zcs(4220) + tetraquark states. The magnetic dipole moments are obtained as μZc = 0.66 +0.27 −0.25, μZ1 c = 1.03 +0.32 −0.29, μZcs = 0.73 +0.28 −0.26, μZ1 cs = 0.77 +0.27 −0.25 for the Zc(4020) , Zc(4200) , Zcs(4000) + and Zcs(4220) + states, respectively. We observe that the results obtained for the Zc(4020) , Zc(4200) , Zcs(4000) + and Zcs(4220) + states are large enough to be measured experimentally. As a by product, we predict the magnetic dipole moments of the neutral Zcs(4000) and Zcs(4220) states. The results presented here can serve to be helpful knowledge in experimental as well as theoretical studies of the properties of hidden-charm tetraquark states with and without strangeness.

Keywords: zcs 4220; zcs 4000; zcs; magnetic dipole; 4020 4200; 4000 zcs

Journal Title: Physical Review D
Year Published: 2021

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