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A study of excited $$\Omega _b^-$$Ωb- states in hypercentral constituent quark model via artificial neural network
The European Physical Journal A ( IF 2.6 ) Pub Date : 2020-05-25 , DOI: 10.1140/epja/s10050-020-00161-5
Halil Mutuk

In this work, we have obtained mass spectra, radiative decay widths and strong decay widths of newly observed excited \(\Omega _b^-\) states, i.e. \(\Omega _b(6316)^-\), \(\Omega _b(6330)^-\), \(\Omega _b(6340)^-\), and \(\Omega _b(6350)^-\). Mass spectrum is obtained in Hypercentral Constituent Quark Model (hCQM) by solving six-dimensional nonrelativistic Schrödinger equation via Artificila Neural Network (ANN). In this respect, radiative decay widhts are calculated by a generalization of a framework from meson to baryon. Also, strong decay widths of the low-lying \(\Omega _b\) states within \(^3P_0\) model are calculated. Obtained results are presented with the comparison of available experimental data and other theoretical studies.

中文翻译:

基于人工神经网络的超中心构成夸克模型中兴奋的$$ \ Omega _b ^-$$Ωb-状态的研究

在这项工作中,我们获得了新观察到的激发\(\ Omega _b ^-\)状态,即\(\ Omega _b(6316)^-\)\(\ Omega的质谱图,辐射衰减宽度和强衰减宽度_b(6330)^-\)\(\ Omega _b(6340)^-\)\(\ Omega _b(6350)^-\)。通过Artificila神经网络(ANN)求解六维非相对论Schrödinger方程,可在超中心成分夸克模型(hCQM)中获得质谱。在这方面,辐射衰落宽度是通过对介子到重子框架的泛化来计算的。同样,\(^ 3P_0 \)内低洼\(\ Omega _b \)状态的强衰减宽度模型被计算。通过将现有实验数据与其他理论研究进行比较,得出了获得的结果。
更新日期:2020-05-25
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