关于1^(3)S_(1)介子多重态径向激发态的研究  

On the Radial Excited States of 1^(3)S_(1) Meson Multiplet

作　　者：李祯 赵新军 Li Zhen;Zhao Xinjun(Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matters,College of Physical Science and Technology,Yili Normal University,Yining,Xinjiang 835000,China)

机构地区：[1]伊犁师范大学物理科学与技术学院,新疆凝聚态相变与微结构实验室,新疆伊宁835000

出　　处：《伊犁师范大学学报（自然科学版）》2022年第3期27-33,40,共8页Journal of Yili Normal University：Natural Science Edition

基　　金：伊犁师范大学校级科研项目(2016YSYB08).

摘　　要：由雷吉轨迹描述轨道激发态介子的J-M^(2)公式导出描述径向激发态介子的N-M^(2)修正公式.利用修正公式计算的1^(3)S_(1)介子多重态中径向激发态的介子质量与现有的实验数据及其他唯象方法的结果相符合,为实验上候选态的寻找提供一定的参考价值.根据N-M^(2)修正公式算得的ρ(3^(3)S_(1))和ρ(4^(3)S_(1))的质量,以及由^(3)P_(0)衰变模型获得的相应质量下的衰变宽度,建议ρ(1900)和ρ(2150)安排为ρ(3^(3)S_(1))和ρ(4^(3)S_(1))的候选态.The modified N-M^(2) formula for describing the mesons of radial excited states is derived from the J-M^(2) formula for describing the mesons of orbital excited states with the Regge Trajectory.The meson spectra of the radial excited states of the 1^(3)S_(1) meson multiplet calculated by the modified formula are in good agreement with the experimental data and other phenomenological methods,which provide some help for the search of candidate states in experiment.The masses of theρ(3^(3)S_(1))andρ(4^(3)S_(1))calculated by the modified N-M^(2) formula and the decay width obtained by the ^(3)P_(0) decay model support the assignments ofρ(1900)asρ(3^(3)S_(1))andρ(2150)asρ(4^(3)S_(1)).

关 键 词：雷吉轨迹 介子 质量谱 

分 类 号：O572.25[理学—粒子物理与原子核物理]