论文标题

轻度亮度四夸克人的质量

Mass-spectra of light-heavy tetraquarks

论文作者

Tiwari, Rohit, Oudichhya, Juhi, Rai, Ajay Kumar

论文摘要

轻度较高的四夸克斯$ cq \ bar {c} \ bar {q} $(q = u,d)是在具有一个粘液交换和限制潜力的非权威性diquark模型中计算的。在Diquark模型中,$ cq \ bar {c} \ bar {q} $状态被认为是由浅色的diquark(qc)和抗diquark $ \ bar {q} \ bar {c} \ bar {c} $分别制成的,分别是三重和抗曲线颜色配置。计算魅力介子的质量是为了适合用于创建四夸克质量的模型参数,从而提高了模型的可靠性。 $(cq \ bar {c} \ bar {q})$ tetra-quark状态的质量确定在3.8 GEV-4.7 GEV范围内,这与实验报告的类似charmonium的状态是一致的。特别是,$ z_ {c}(3900)$,$ z_ {c}(4430)$和$ψ(4660)$ tetraquarks,tetraquarks已通过实验看到,我们的模型都可以描述。

The mass spectra of light-heavy tetraquarks $cq\bar{c}\bar{q}$ (q= u, d) are computed in a non-relativistic diquark model with one-gluon exchange plus confining potential. In the diquark model, a $cq\bar{c}\bar{q}$ state is regarded to be made of a light-heavy diquark (qc) and an antidiquark $\bar{q}\bar{c}$ in triplet and antitriplet colour configuration respectively. The masses of charm mesons were calculated in order to fit the model parameters used to create the masses of tetraquarks and therefore enhance the model's reliability. The masses of $(cq\bar{c}\bar{q})$ tetra-quark states are determined to be in the range of 3.8 GeV - 4.7 GeV, which is consistent with the experimentally reported charmonium-like states. In particular, the $Z_{c}(3900)$, $Z_{c}(4430)$, and $ψ(4660)$ tetraquarks, which have been seen experimentally, may all be described by our model.

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