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Investigating bottom-quark Yukawa interaction at Higgs factory
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作者 Qi Bi Kangyu Chai +2 位作者 Jun Gao Yiming Liu Hao Zhang 《Chinese Physics C》 SCIE CAS CSCD 2021年第2期144-151,共8页
Measuring the fermion Yukawa coupling constants is important for understanding the origin of the fermion masses and their relationship with spontaneously electroweak symmetry breaking.In contrast,some new physics(NP)m... Measuring the fermion Yukawa coupling constants is important for understanding the origin of the fermion masses and their relationship with spontaneously electroweak symmetry breaking.In contrast,some new physics(NP)models change the Lorentz structure of the Yukawa interactions between standard model(SM)fermions and the SM-like Higgs boson,even in their decoupling limit.Thus,the precise measurement of the fermion Yukawa interactions is a powerful tool of NP searching in the decoupling limit.In this work,we show the possibility of investigating the Lorentz structure of the bottom-quark Yukawa interaction with the 125 GeV SM-like Higgs boson for future e^+e^- colliders. 展开更多
关键词 HIGGS bottom-quark Yukawa interaction BSM Higgs factory
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Pseudoscalar Top-Bottom Quark-Antiquark Composite as the Resonance with 28 GeV at the LHC: Hadron Masses and Higgs Boson Masses Based on the Periodic Table of Elementary Particles
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作者 Ding-Yu Chung 《Journal of Modern Physics》 2018年第14期2638-2656,共19页
This paper posits that the observed resonance with 28 GeV at the LHC is the pseudoscalar top-bottom quark-antiquark composite which has the calculated mass of 27.9 GeV derived from the periodic table of elementary par... This paper posits that the observed resonance with 28 GeV at the LHC is the pseudoscalar top-bottom quark-antiquark composite which has the calculated mass of 27.9 GeV derived from the periodic table of elementary particles. The calculated mass is for the mass of?. In the periodic table of elementary particles, t quark (13.2 GeV) in the pseudoscalar top-bottom quark-antiquark composite is only a part of full t quark (175.4 GeV), so pseudoscalar?(26.4 GeV) cannot exist independently, and can exist only in the top-bottom quark-antiquark composite. As shown in the observation at the LHC, the resonance with 28 GeV weakens significantly at the higher energy collision (13 TeV), because at the higher collision energy, low-mass pseudoscalar? in the composite likely becomes independent full high-mass vector? moving out of the composite. The periodic table of elementary particles is based on the seven mass dimensional orbitals derived from the seven extra dimensions of 11 spacetime dimensional membrane. The calculated masses of hadrons are in excellent agreement with the observed masses of hadrons by using only five known constants. For examples, the calculated masses of proton, neutron, pion (&pi;&plusmn;), and pion (&plusmn;0) are 938.261, 939.425, 139.540, and 134.982 MeV in excellent agreement with the observed 938.272, 939.565, 139.570, and 134.977MeV, respectively with 0.0006%, 0.01%, 0.02%, and 0.004%, respectively for the difference between the calculated and observed mass. The calculated masses of the Higgs bosons as the intermediate vector boson composites are in excellent agreements with the observed masses. In conclusion, the calculated masses of the top-bottom quark-antiquark composite (27.9 GeV), hadrons, and the Higgs bosons by the periodic table of elementary particles are in excellent agreement with the observed masses of resonance with 28 GeV at the LHC, hadrons, and the Higgs bosons, respectively. 展开更多
关键词 LHC CMS RESONANCE b QUARK Jet Periodic Table of Elementary Particles Top QUARK BOTTOM QUARK Hadron MASSES Mass Calculation Higgs Boson
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相对论夸克模型中底奇异介子的辐射衰变(英文)
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作者 王文君 贾多杰 陈殿勇 《原子核物理评论》 CAS CSCD 北大核心 2016年第1期30-35,共6页
系统地研究了相对论夸克模型框架下的底奇异介子的辐射衰变。给出了底奇异介子E1和M1辐射衰变分宽度。这些结果表明,大多数电偶极辐射衰变宽带能达到数个ke V,大多数磁偶极辐射衰变宽度小于1个ke V,这为实验上通过辐射衰变寻找底奇异介... 系统地研究了相对论夸克模型框架下的底奇异介子的辐射衰变。给出了底奇异介子E1和M1辐射衰变分宽度。这些结果表明,大多数电偶极辐射衰变宽带能达到数个ke V,大多数磁偶极辐射衰变宽度小于1个ke V,这为实验上通过辐射衰变寻找底奇异介子提供了理论依据。建设中的Belle II上的实验可以进一步验证我们的结果。 展开更多
关键词 底奇异介子 辐射衰变 相对论夸克模型
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Spectrum of b-baryons: color hyperfine interaction vs. experiment
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作者 M.Karliner 《Chinese Physics C》 SCIE CAS CSCD 2010年第9期1191-1194,共4页
I discuss several recent highly accurate theoretical predictions for masses of baryons containing the b quark,especially Ωb (ssb) very recently reported by CDF.I also point out an approximate effective supersymmetr... I discuss several recent highly accurate theoretical predictions for masses of baryons containing the b quark,especially Ωb (ssb) very recently reported by CDF.I also point out an approximate effective supersymmetry between heavy quark baryons and mesons and provide predictions for the magnetic moments of Λc and Λb .Proper treatment of the color-magnetic hyperfine interaction in QCD is crucial for obtaining these results. 展开更多
关键词 bottom baryons hadron masses quark model
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LHT模型中希格斯粒子和底夸克在e^+e^-对撞机上的联合产生
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作者 毕恒恒 姜英功 +1 位作者 侯镖锋 杨炳方 《郑州师范教育》 2019年第2期9-13,共5页
在具有T宇称的最小希格斯(LHT)模型中,研究了希格斯粒子与底夸克(b)在e^+e^-对撞机上的联合产生。我们计算了过程e^-e^+→Hbb的产生截面,并展示了末态粒子在部分子水平和重构水平的典型运动学分布,这些结果将为精确检验标准模型和探测LH... 在具有T宇称的最小希格斯(LHT)模型中,研究了希格斯粒子与底夸克(b)在e^+e^-对撞机上的联合产生。我们计算了过程e^-e^+→Hbb的产生截面,并展示了末态粒子在部分子水平和重构水平的典型运动学分布,这些结果将为精确检验标准模型和探测LHT模型效应提供有价值的参考。 展开更多
关键词 希格斯玻色子 底夸克 LHT模型
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Dipion decays of heavy baryons
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作者 牟春 王霄 +2 位作者 陈晓林 刘翔 朱世林 《Chinese Physics C》 SCIE CAS CSCD 2014年第11期1-15,共15页
Compared with the charmed baryons, the bottom baryons are not very well known, either experimentally Or theoretically. In this paper, we investigate the dipion strong decays of the P-wave and D-wave excited bottom bar... Compared with the charmed baryons, the bottom baryons are not very well known, either experimentally Or theoretically. In this paper, we investigate the dipion strong decays of the P-wave and D-wave excited bottom baryons in the framework of the QPC model. We also extend the same analysis to the charmed baryons. 展开更多
关键词 bottom baryon charmed baryon dipion decay the quark pair creation model
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