质心能量为 7、8 和 13 TeV 时质子-质子对撞数据中观测到的 J/ψK0S 结构的可能四夸克解释

Qeios Pub Date : 2024-06-08 DOI:10.32388/yft8l5

J. Bevelacqua

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摘要

Bevelacqua Resources, 7531 Flint Crossing Circle SE, Owens Cross Roads, AL 35763 USA bevelresou@aol.com LHCb 协作提供的数据支持 J/ψK0S 结构，用 B0 → J/ψϕK0S 衰变的振幅分析表示为 Tθψs1(4000)0。利用一阶四夸克质量公式研究了 J/ψK0S 的结构。这种质量关系是基于弱结合的 J/ψ 加 K0S 介子簇。一阶四夸克质量公式的预测质量为 3694 MeV/c2，与 Jπ = 1+ 预测的实验值 3991 MeV/c2 相差约 8%。关键词： Tθψs1(4000)0 的四夸克模型；一阶质量公式；夸克模型；簇模型。

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Possible Tetraquark Explanation for the J/ψK0S Structure Observed in Proton-Proton Collision Data at Center-of-Mass Energies of 7, 8, and 13 TeV

Bevelacqua Resources, 7531 Flint Crossing Circle SE, Owens Cross Roads, AL 35763 USA bevelresou@aol.com The LHCb Collaboration provided data that supports a J/ψK0S structure, denoted as Tθψs1(4000)0, using an amplitude analysis of B0 → J/ψϕK0S decay. The structure of the J/ψK0S is investigated using a first-order tetraquark mass formula. This mass relationship is based on weakly bound J/ψ plus K0S meson clusters. The first-order tetraquark mass formula provides a predicted mass of 3694 MeV/c2 that is within about 8% of the experimental value of 3991 MeV/c2 with a Jπ = 1+ prediction. The data does not distinguish between 1+ and 1¯ states. KEYWORDS: Tetraquark Model for the Tθψs1(4000)0; First-Order Mass Formula; Quark Model; Cluster Model.

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