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寻找希格斯介子,或者说……原力?
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《微型计算机》 北大核心 2008年第8期17-17,共1页
大多数物理学家认为,必定有一个希格斯场(Higgs field)贯穿于所有空间,希格斯场由许多被叫做希格斯玻色子(Higgs boson)的粒子组成,它们会与其他粒子互相作用,赋予其他粒子特有的质量。希格斯玻色子也可称为希格斯介子,它是量... 大多数物理学家认为,必定有一个希格斯场(Higgs field)贯穿于所有空间,希格斯场由许多被叫做希格斯玻色子(Higgs boson)的粒子组成,它们会与其他粒子互相作用,赋予其他粒子特有的质量。希格斯玻色子也可称为希格斯介子,它是量子物理学标准模型中一个关键的环节,遗憾的是至今没有人发现这种传说中的粒子,所以它目前仍存在于假设中。 展开更多
关键词 希格斯介子 希格斯玻色子 量子物理学 物理学家 互相作用 标准模型 粒子
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Littlest Higgs Model and Higgs Boson Associated Production with Top Quark Pair at High Energy Linear e^+e^- Collider 被引量:2
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作者 YUE Chong-Xing WANG Wei ZHANG Feng 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第3期511-516,共6页
In the parameter space allowed by the electroweak precision measurement data, we consider the contributions of the new particles predicted by the littlest Higga model to the Higgs hoson associated production with top ... In the parameter space allowed by the electroweak precision measurement data, we consider the contributions of the new particles predicted by the littlest Higga model to the Higgs hoson associated production with top quark pair in the future high energy linear e^+e^- collider (ILU). We find that the contributions mainly come from the new gauge bosons ZH and BH. For reasonable values of the free parameters, the absolute value of the relative correction parameter δσ/σ^SM can be signiticanly large, which might be observed in the future ILU experiment with √S = 800 GeV. 展开更多
关键词 littlest Higgs model Higgs boson new gauge bosons
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Muon g - 2 in the Littlest Higgs Model
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作者 Farshid Tabbakh LIU Jing-Jing MA Wen-Gan 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第5期894-900,共7页
In this paper the anomalous magnetic dipole moment ofmuon in the littlest Higgs (LH) model is studied at one-loop level. We discuss the dependence of the contributions on the global symmetry breaking scale f, mizing... In this paper the anomalous magnetic dipole moment ofmuon in the littlest Higgs (LH) model is studied at one-loop level. We discuss the dependence of the contributions on the global symmetry breaking scale f, mizing angles c` and , and the Higgs triplet vacuum expectation value v' in the electroweak precision data preferring ranges. We find that the LH model can give a relatively small, but non-negligible extra weak contribution to the muon anomalous magnetic moment and can reduce the deviation of △aμ from 2.6σ for the SM to 2.5σ for the LH model. 展开更多
关键词 littlest Higgs model anomalous magnetic dipole moment of muon
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Tau Leptonic Decay τ→lVlVτ in Littlest Higgs Model*
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作者 YUEChong-Xing WANGWei 《Communications in Theoretical Physics》 SCIE CAS CSCD 2004年第2X期253-256,共4页
We consider the T leptonic decay τ→lVlVτ in the framework of the littlest Higgs (LH) model and calculate the corrections of new particles to this decay. We find that the contributions of the charged scalars can be... We consider the T leptonic decay τ→lVlVτ in the framework of the littlest Higgs (LH) model and calculate the corrections of new particles to this decay. We find that the contributions of the charged scalars can be safely ignored and the LH model is in perfect agreement with the universality of the couplings of the SU gauge bosons to the leptonic charged currents. The corrections of the LH model to the T leptonic decay τ→lVlVτ are not sensitive to the parameter c, but depend strongly on the parameters f and x. The precision measured data about the T leptonic decay demand that the parameter f approximately equal 3.5 TeV and x > 0.1, while agree with the general expectation based on other phenomenological explorations. 展开更多
关键词 τ轻子衰减 希格斯介子模型 高能物理学 标准玻色子 弱电子对称破裂
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Top—Higgs ht^0 and the Process γγ→ZZ
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作者 YUEChong-Xing ZHAOXian-Lin +1 位作者 ZHANGYan-Ming LIHong 《Communications in Theoretical Physics》 SCIE CAS CSCD 2003年第6期681-684,共4页
In the context of topcolor-assisted technicolor(TC2) models,we calculate the s-channel contributions of the top-Higgs ht^0 to the process γγ→ZZ.We find that,for reasonable ranges of the paramters,ht^0 can give sign... In the context of topcolor-assisted technicolor(TC2) models,we calculate the s-channel contributions of the top-Higgs ht^0 to the process γγ→ZZ.We find that,for reasonable ranges of the paramters,ht^0 can give significant contributions to this process,when the top-Higgs mass approximately equals to the center-of-mass energy s and the free parameter ε=0.01,the cross section can reach 161 fb.which may be detected in the γγ collisions based on the future e+e- colliders.Thus,the process γγ→ZZ may be used to probe the top-Higgs and further test TC2 models in γγ collisions. 展开更多
关键词 TC2模型 粒子物理学 希格斯介子 Higgs介子 横截面 相互作用 QCD 量子色动力学 夸克
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Single Production of gauge boson Z' at TeV Energy e^-γ colliders
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作者 Yao-Bei Liu Cao Jun 《科技信息》 2007年第25期170-171,共2页
In the context of the SU(3) simple group model and the Left-Right twin Higgs(LRTH) model,we study the single production of the new gauge boson Z' via e-γ collision and discuss the possibility to detect this new p... In the context of the SU(3) simple group model and the Left-Right twin Higgs(LRTH) model,we study the single production of the new gauge boson Z' via e-γ collision and discuss the possibility to detect this new particle in the TeV energy e+e-collider(LC).The results show that the production cross section of the new heavy gauge boson Z' is in the range of 10.08fb~84.5fb,and the cross section in the LRTH model is bigger than that in the SU(3) simple group model.The sufficient typical events could be assumed in future high energy LC experiments. 展开更多
关键词 SU(3)单群模型 左右双希格斯介子 横截面 粒子碰撞 能量
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揭示物质之谜的一场竞赛
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作者 刘家伟 陈敏 《中国科教创新导刊》 1995年第7期10-12,43共4页
揭示物质之谜的一场竞赛刘家伟,陈敏全世界的物理学家正在为下一个高能物理前沿领域建造加速器。三大洲的高能物理学家正在一项了解为什么宇宙主要由物质组成的竞赛中你追我赶,奋力争先。虽然一度假定物质与反物质数量相等的理论已被... 揭示物质之谜的一场竞赛刘家伟,陈敏全世界的物理学家正在为下一个高能物理前沿领域建造加速器。三大洲的高能物理学家正在一项了解为什么宇宙主要由物质组成的竞赛中你追我赶,奋力争先。虽然一度假定物质与反物质数量相等的理论已被修正以适应这一不对称现象,但物理学... 展开更多
关键词 质子加速器 实验室 电子加速器 介子物理 介子工厂 检测器 物理学家 希格斯玻色子 标准模型 电子伏
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