Strong decay properties of P-wave single bottom baryons of the SU(3) flavor antitriplet 3¯F

IF 5 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-04-08 DOI:10.1103/physrevd.111.076003

Yi-Jie Wang, Xuan Luo, Hua-Xing Chen, Er-Liang Cui, Wei-Han Tan, Zhi-Yong Zhou

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引用次数: 0

Abstract

We study the P-wave bottom baryons of the SU(3) flavor antitriplet and systematically calculate their strong decay properties, including their D-wave decays into ground-state bottom baryons with light pseudoscalar mesons and S-wave decays into ground-state bottom baryons with light vector mesons. Together with [W. H. Tan , Predicted Ξb(6087)0 and further predictions, ., H. M. Yang , Decay properties of P-wave bottom baryons within light-cone sum rules, ., H. M. Yang and H. X. Chen, P-wave bottom baryons of the SU(3) flavor 6F ., and X. Luo, H. M. Yang, and H. X. Chen, Radiative decays of P-wave bottom baryons from light-cone sum rules, .], a rather complete investigation has been performed to study their mass spectra and strong/radiative decay properties, through the methods of quantum chromodynamics (QCD) sum rules and light-cone sum rules within the framework of heavy quark effective theory. Among various possibilities, we identify four Λb and four Ξb baryons, with limited decay widths and so capable of being observed in experiments. Their masses, mass splittings within the same multiplets, and strong/radiative decay widths are summarized in Table II for future experimental searching.

Published by the American Physical Society

2025

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SU(3)味反三重态3¯F p波单底重子的强衰减特性

研究了SU(3)味反三重态的p波底重子，系统地计算了它们的强衰变性质，包括它们的d波衰变为带光伪标量介子的基态底重子，s波衰变为带光矢量介子的基态底重子。与…一起；谭辉，预测Ξb(6087)0及进一步预测，.，杨洪明，光锥求和规则下p波底重子的衰减特性，.，杨洪明和陈洪祥，SU(3)型6F的p波底重子，以及罗晓霞，杨洪明和陈洪祥，光锥求和规则下p波底重子的辐射衰减，.]，对它们的质谱和强/辐射衰减特性进行了较为完整的研究。在重夸克有效理论的框架下，通过量子色动力学（QCD）和规则和光锥和规则的方法。在各种可能性中，我们确定了四个Λb和四个Ξb重子，它们的衰变宽度有限，因此能够在实验中观察到。表2总结了它们的质量、同一多重态内的质量分裂和强/辐射衰变宽度，以便将来的实验搜索。2025年由美国物理学会出版

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.