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Low-lying ud(s)over-bar(s)over-bar configurations in a non-relativistic constituent quark
Wang, WL; Huang, F; Zhang ZY(张宗烨); Yu YW(余友文); Zhang, ZY; Yu, YW; Liu, F
刊名JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
2007
卷号34期号:7页码:1771-1782
学科分类Physics
DOI10.1088/0954-3899/34/7/015
通讯作者Huazhong Normal Univ, Inst Particle Phys, Wuhan 430070, Peoples R China ; CCAST World Lab, Beijing 100080, Peoples R China ; Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
英文摘要The energies of the low- lying isoscalar and isovector udss configurations with spin-parity J(P) = 0(+), 1(+) and 2(+) are calculated in a non-relativistic constituent quark model by using the variational method. The contributions of various parts of the quark-quark interacting potentials including the s-channel interaction are investigated, and the effect of different forms of the confinement potential is examined. The model parameters are determined by the same method as in our previous work, and they still can satisfactorily describe the nucleon-nucleon scattering phase shifts and the hyperon-nucleon cross sections. The parameters of the s- channel interaction are fixed by the masses of K and K* mesons, for which the size parameter is taken to be two possible values. When it is chosen to be the same as baryons', the numerical results show that the masses of all the udss configurations are higher than the corresponding meson-meson thresholds. But when the size parameter for the K and K* mesons is adjusted to be smaller than that for the baryons, the udss configuration with I = 0 and J(P) = 1(+) is found to lie lower than the K* K* threshold, furthermore, this state has a very small KK* component and the interaction matrix elements between this state and KK* is comparatively small, thus its coupling to the KK* channel will consequently be weak and it might be regarded 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:000247190000016
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239513
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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Wang, WL,Huang, F,Zhang ZY,et al. Low-lying ud(s)over-bar(s)over-bar configurations in a non-relativistic constituent quark[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2007,34(7):1771-1782.
APA Wang, WL.,Huang, F.,张宗烨.,余友文.,Zhang, ZY.,...&Liu, F.(2007).Low-lying ud(s)over-bar(s)over-bar configurations in a non-relativistic constituent quark.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,34(7),1771-1782.
MLA Wang, WL,et al."Low-lying ud(s)over-bar(s)over-bar configurations in a non-relativistic constituent quark".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 34.7(2007):1771-1782.
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