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矢量介子及其激发态的讨论

ISSN号：1000-3290
期刊名称：Acta Physica Sinica
时间：2013
页码：1-8
分类：O413.3[理学—理论物理;理学—物理]
作者机构：[1]安阳师范学院物理与电气工程学院,安阳455000, [2]中国科学院高能物理研究所,大科学装置理论物理研究中心,北京100049, [3]北京师范大学核科学与技术学院,北京100875, [4]闽江学院物理学与电子信息工程系,福州350108
相关基金：国家自然科学基金（批准号：11147197,U1204115,11247287,11275025,11261130311）、河南省教育厅科学技术研究重点项目（批准号：128140001,13A140014）和安阳师范学院大学生创新基金项目（批准号：ASCX/2013-Z62）资助的课题.
相关项目：重味重子分子态的唯象研究

关键词： Regge唯象, 矢量介子, 质量谱, Regge phenomenology, vector meson, mass spectrum

中文摘要：

在Regge唯象下，首先研究自旋．宇称多重态中六个介子质量间的关系式．运用验证后的关系式，重点计算基态矢量介子多重态（10S1）中尚未观测到的双重粲．底介子B：的质量．还计算了径向激发态20s1多重态的介子质量和轨道激发态10Gs介子九重态的质量．根据计算结果结合实验数据和其他理论进行讨论，建议在6355MeV附近寻找和研究B介子，将D（2600）和D（2700）分别作为主要成分为no（20S1）和gc（20s1）的态进行研究；分别在5812，5917，6896MeV附近寻找矢量介子第一径向激发态B2s），B（2S）和B（2s）．建议将5（2250）安排在13G5介子九重态的同位旋标量态，实验上在2259MeV附近进一步研究P5（2350）的性质，在2438MeV附近寻找和研究（p5（10Gs）．研究结果对于相关介子的自旋一宇称安排和通过实验寻找新的介子激发态具有重要的参考价值．

英文摘要：

Based on the Regge phenomenology, we first study the mass relations for six mesons involving three flavors in one spin-parity multiplet. Using the examined mass relation, mass of the unobserved vector doubly heavy charm-bottom B（13S1） is calculated. Masses of the unobserved radial excited vector （23S1） mesons and the orbital excited 13G5 meson nonet are given. Our predictions are discussed. We suggest searching B~ near 6355 MeV. D（2600） and Dsl （2700） can be considered as candidates for/~c（23S1 ） and gc（23S1） dominated states, respectively. We suggest searching B（2S）, B（2S） and B（2S） near 5812, 5917 and 6896 MeV, respectively. We suggest restudying p5（2350） near 2259 MeV, searching 5（13Gs） near 2438 MeV and identifying w5（2250） as isoscalar member of 13G5 nonet. The results may be profoundly useful for the JP assignment of related states and the discovery of the unobserved excited mesons.

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期刊信息

《物理学报》
北大核心期刊（2011版）

主管单位:中国科学院
主办单位:中国物理学会中国科学院物理研究所
主编：欧阳钟灿
地址：北京603信箱(中国科学院物理研究所)
邮编：100190
邮箱：apsoffice@iphy.ac.cn
电话：010-82649026

国际标准刊号：ISSN：1000-3290
国内统一刊号：ISSN：11-1958/O4
邮发代号:2-425

获奖情况:
1999年首届国家期刊奖,2000年中科院优秀期刊特等奖,2001年科技期刊最高方阵队双高期刊居中国期刊第12位

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被引量:49876