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Analysis of the Pcs(4459) as the hidden-charm pentaquark state with QCD sum rules
International Journal of Modern Physics A ( IF 1.6 ) Pub Date : 2021-04-20 , DOI: 10.1142/s0217751x21500718 Zhi-Gang Wang 1
International Journal of Modern Physics A ( IF 1.6 ) Pub Date : 2021-04-20 , DOI: 10.1142/s0217751x21500718 Zhi-Gang Wang 1
Affiliation
In this paper, we study the scalar-diquark–scalar-diquark–antiquark-type u d s c c ̄ pentaquark state with the QCD sum rules, the predicted mass M P = 4 . 4 7 ± 0 . 1 1 GeV is in excellent agreement with the experimental data 4 4 5 8 . 8 ± 2 . 9 − 1 . 1 + 4 . 7 MeV from the LHCb collaboration, and supports assigning the P c s ( 4 4 5 9 ) to be the hidden-charm pentaquark state with the spin-parity J P = 1 2 − . We take into account the flavor S U ( 3 ) mass-breaking effect, and estimate the mass spectrum of the diquark–diquark–antiquark-type u d s c c ̄ pentaquark states with the strangeness S = − 1 .
中文翻译:
用 QCD 和规则分析 Pcs(4459) 作为隐魅五夸克态
在本文中,我们研究标量-二夸克-标量-二夸克-反夸克型你 d s C C ̄ 具有 QCD 和规则的五夸克状态,预测质量米 磷 = 4 . 4 7 ± 0 . 1 1 锗钒 与实验数据非常吻合4 4 5 8 . 8 ± 2 . 9 - 1 . 1 + 4 . 7 电子伏特 来自 LHCb 合作,并支持分配磷 C s ( 4 4 5 9 ) 成为具有自旋奇偶性的隐魅五夸克状态Ĵ 磷 = 1 2 - . 我们考虑到味道小号 ü ( 3 ) 质量破坏效应,并估计二夸克-二夸克-反夸克型的质谱你 d s C C ̄ 奇异的五夸克状态小号 = - 1 .
更新日期:2021-04-20
中文翻译:
用 QCD 和规则分析 Pcs(4459) 作为隐魅五夸克态
在本文中,我们研究标量-二夸克-标量-二夸克-反夸克型