Hidden-bottom pentaquarks: mass spectrum, magnetic moments and partial widths

被引:1
|
作者
Sharma, Ankush [1 ]
Upadhyay, Alka [1 ]
机构
[1] Thapar Inst Engn & Technol, Dept Phys & Mat Sci, Patiala 147004, India
来源
EUROPEAN PHYSICAL JOURNAL PLUS | 2024年 / 139卷 / 09期
关键词
RESONANCES;
D O I
10.1140/epjp/s13360-024-05640-y
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
By taking into light the discovery of pentaquark structures like P psi s Lambda(4338)0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$P_{\psi s}<^>\Lambda (4338)<^>0$$\end{document}, Pc(4380)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$P_c(4380)$$\end{document} and Pc(4450)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$P_c(4450)$$\end{document}, we performed the spectroscopy of hidden-bottom pentaquarks. By utilizing special unitary representations, we systematically classified the hidden-bottom pentaquarks into two distinct configurations within the SU(3) flavor representation: the octet and decuplet. In this study, we employed an extended version of the GR mass formula and the effective mass scheme to provide estimations of the masses associated with hidden-bottom pentaquarks. Furthermore, we extend our analysis to estimate the magnetic moments using the effective mass and screened charge schemes. Moreover, we computed the partial widths for the octet configuration by employing the effective Lagrangian method. Our findings, which include calculations of masses and magnetic moments, demonstrate reasonable agreement with existing theoretical predictions.
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页数:13
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