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arXiv 2104.13074hep-phhep-exhep-lat
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光锥QCD中$Z_{c}(4020)^+$、PDMATHAAB、$Z_{cs}(4000)^{+}$和$Z_{cs}(4220)^{+}$态的磁偶极矩

Magnetic dipole moments of the $Z_{c}(4020)^+$, $Z_{c}(4200)^+$, $Z_{cs}(4000)^{+}$ and $Z_{cs}(4220)^{+}$ states in light-cone QCD

U. Ozdem, A. Karadeniz Yildirim

备注：
The version accepted to PRD
发表信息：
Phys. Rev. D 104, 054017 (2021)
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摘要：

在光锥QCD求和规则的框架下，提取了$Z_{c}(4020)^+$、$Z_{c}(4200)^+$、$Z_{cs}(4000)^{+}$和$Z_{cs}(4220)^{+}$态的磁偶极矩。在计算中，我们利用强子分子形式的内插电流和光子分布振幅，计算了$Z_{c}(4020)^+$、$Z_{c}(4200)^+$、$Z_{cs}(4000)^{+}$和$Z_{cs}(4220)^{+}$四夸克态的磁偶极矩。对于$Z_{c}(4020)^+$、$Z_{c}(4200)^+$、$Z_{cs}(4000)^{+}$和$Z_{cs}(4220)^{+}$状态，磁偶极矩分别被获得为$μ_{Z_{c}} = 0.66^{+0.27}_{-0.25}$、$μ_{Z^{1}_{c}}=1.03^{+0.32}_{-0.29}$、$μ_{Z_{cs}}=0.73^{+0.28}_{-0.26}$、$μ_{Z^1_{cs}}=0.77^{+0.27}_{-0.25}$。我们观察到，$Z_{c}(4020)^+$，$Z_{c}(4200)^+$，$Z_{cs}(4000)^{+}$和$Z_{cs}(4220)^{+}$状态的结果是足够大的实验测量。作为副产品，我们预测的中性$Z_{cs}(4000)$和$Z_{cs}(4220)$状态的磁偶极矩。本文的结果对实验和理论研究具有奇异性和非奇异性的隐魅四夸克态的性质具有一定的参考价值。

英文摘要：

The magnetic dipole moments of the $Z_{c}(4020)^+$, $Z_{c}(4200)^+$, $Z_{cs}(4000)^{+}$ and $Z_{cs}(4220)^{+}$ 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 $Z_{c}(4020)^+$, $Z_{c}(4200)^+$, $Z_{cs}(4000)^{+}$ and $Z_{cs}(4220)^{+}$ tetraquark states. The magnetic dipole moments are obtained as $μ_{Z_{c}} = 0.66^{+0.27}_{-0.25}$, $μ_{Z^{1}_{c}}=1.03^{+0.32}_{-0.29}$, $μ_{Z_{cs}}=0.73^{+0.28}_{-0.26}$, $μ_{Z^1_{cs}}=0.77^{+0.27}_{-0.25}$ for the $Z_{c}(4020)^+$, $Z_{c}(4200)^+$, $Z_{cs}(4000)^{+}$ and $Z_{cs}(4220)^{+}$ states, respectively. We observe that the results obtained for the $Z_{c}(4020)^+$, $Z_{c}(4200)^+$, $Z_{cs}(4000)^{+}$ and $Z_{cs}(4220)^{+}$ states are large enough to be measured experimentally. As a by product, we predict the magnetic dipole moments of the neutral $Z_{cs}(4000)$ and $Z_{cs}(4220)$ 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.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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