Investigating triply heavy tetraquark states through QCD sum rules

2024/12/16 by W. Zhang, Zhang, Wen-Shuai, Liang Tang +1 · 1 citation
Physics and Astronomy · #Quantum Chromodynamics and Particle Interactions #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2412.11531

Abstract

We apply the method of QCD sum rules to study the \(QQQq\) and \(QQQs\) tetraquark states, where Q=c,b and q=u,d, with the quantum number \(J^P = 0⁺\). We consider the contributions of vacuum condensates up to dimension-9 in the operator product expansion, and use the energy scale formula \(μ= √M_X² - (i\mathbbM_c + j\mathbbM_b)² - k\mathbbM_s\) to determine the optimal energy scales for the QCD spectral densities. Our results indicate that triply charm tetraquark states \(cccq\) and \(cccs\) have masses in the ranges of 5.38-5.84 GeV and 5.66-6.16 GeV, respectively. In the bottom sector, triply bottom tetraquark states \(bbbq\) and \(bbbs\) have masses in the ranges of 14.89-15.55 GeV and 14.95-15.66 GeV, respectively. This study could help distinguish these states in upcoming high-energy nuclear and particle experiments.

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• Scalar Triple-Heavy Tetraquark States With Quark Content cccs

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