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首页> 外文期刊>Physical review, D >Open-flavor charm and bottom sq(qQ)over-bar and qq(qQ)over-bar tetraquark states
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Open-flavor charm and bottom sq(qQ)over-bar and qq(qQ)over-bar tetraquark states

机译:开放式风味魅力和底部平方(QQ)过度条和QQ(QQ)过条形图状态

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摘要

We provide comprehensive investigations for the mass spectrum of exotic open-flavor charmed/bottom sq (qc) over bar, qq (qc) over bar, sq (qb) over bar, qq (qb) over bar tetraquark states with various spin-parity assignments J(P) = 0(+), 1(+), 2(+) and 0(-), 1(-) in the framework of QCD sum rules. In the diquark configuration, we construct the diquark-antidiquark interpolating tetraquark currents using the color-antisymmetric scalar and axial-vector diquark fields. The stable mass sum rules are established in reasonable parameter working ranges, which are used to give reliable mass predictions for these tetraquark states. We obtain the mass spectra for the open-flavor charmed/bottom sq (qc) over bar, qq (qc) over bar, sq (qb) over bar, qq (qb) over bar tetraquark states with various spin-parity quantum numbers. In addition, we suggest searching for exotic doubly-charged tetraquarks, such as [sd][(uc) over bar] -> D-s(()*()-) pi(-) in future experiments at facilities such as BESIII, BelleII, PANDA, LHCb, and CMS, etc.
机译:我们提供了巴四夸克态的神往/底部平方(QC)保护杆,QQ(QC)保护杆,平(QB)在酒吧,QQ(QB)的异国开放式风味的质谱全面调查各种自旋宇称分配Ĵ(P)= 0(+),1(+),2(+)和0( - ),1( - )中的QCD求和规则框架。在双夸克配置中,我们构建使用颜色反对称标量和轴矢双夸克字段双夸克-antidiquark内插四夸克电流。稳定的质量和规则是建立在合理的参数工作范围,这是用来给这些四夸克态质量可靠的预测。我们获得了开放式的味道迷住/底部平方(QC)保护杆,QQ(QC)保护杆,平(QB)在酒吧,QQ(QB)在巴四夸克态与各种自旋宇称量子数的质谱。在设施,如BESIII,BelleII在今后的实验此外,我们建议您寻找异国情调的双荷四夸克态,如[SD] [(UC)在巴] - > DS(()*() - - )PI() ,PANDA,LHCb的,和CMS等。

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  • 来源
    《Physical review, D》 |2017年第11期|共17页
  • 作者单位

    Univ Saskatchewan Dept Phys &

    Engn Phys Saskatoon SK S7N 5E2 Canada;

    Beihang Univ Sch Phys Beijing 100191 Peoples R China;

    Lanzhou Univ Sch Phys Sci &

    Technol Lanzhou 730000 Peoples R China;

    Univ Saskatchewan Dept Phys &

    Engn Phys Saskatoon SK S7N 5E2 Canada;

    Peking Univ Sch Phys Beijing 100871 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 粒子物理学;场论;
  • 关键词

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