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Chiral quark model study of ud(s)over-bar(s)over-bar tetraquark states
Zhang ZY(张宗烨); Wang WL(王文玲); Yu YW(余友文); Zhang, ZY; Wang, WL; Huang, F; Yu, YW; Liu, F
刊名HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
2007
卷号31期号:9页码:887-891
关键词tetraquark state quark model chiral symmetry
学科分类Physics
通讯作者CAS, Inst High Energy Phys, Beijing 100049, Peoples R China ; Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China
文章类型Article
英文摘要The energies of the low-lying isoscalar and isovector ud (s) over bar(s) over bar configurations with spin-parity J(P) = 0(+), 1(+), and 2(+) are calculated in the chiral SU(3) quark model and the extended chiral SU(3) quark model by using the variational method. The model parameters are determined by the same method as in our previous work, and they still can satisfactorily describes the nucleon-nucleon scattering phase shifts and the hyperon-nucleon cross sections. The s-channel annihilation interaction is fixed by the masses of K and K* mesons, and the configuration mixing is considered. The results show that the ud (s) over bar(s) over bar configuration with I = 0 and J(P) = 1(+) lies lower than the K*K* threshold, and furthermore, this state has a very small KK* component, thus it can be treated as a possible tetraquark candidate.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000249228900019
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238683
专题院士_期刊论文
作者单位中国科学院高能物理研究所
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GB/T 7714
Zhang ZY,Wang WL,Yu YW,et al. Chiral quark model study of ud(s)over-bar(s)over-bar tetraquark states[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2007,31(9):887-891.
APA 张宗烨.,王文玲.,余友文.,Zhang, ZY.,Wang, WL.,...&Liu, F.(2007).Chiral quark model study of ud(s)over-bar(s)over-bar tetraquark states.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,31(9),887-891.
MLA 张宗烨,et al."Chiral quark model study of ud(s)over-bar(s)over-bar tetraquark states".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 31.9(2007):887-891.
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