Current Location:home > Browse



1. chinaXiv:201802.00685 [pdf]

An Explanation of the Interactions between Waves and Electrons: Discussion of Electromagnetic Fields

Weiye Xu
Subjects: Physics >> The Physics of Elementary Particles and Fields

The interactions between waves and electrons are the basis of vacuum tubes and particle accelerators. In order to further understand the interactions, we proposed a new electromagnetic model. In this model, the photon is composed of two elementary particles – ephoton and mphoton, which are the basic particles that form the electric fields and magnetic fields, respectively. There are many ephotons around the electrons and the electrons can absorb the ephotons. The proposed electromagnetic model can well explain the electromagetic phenomena and the interactions between waves and electrons.

submitted time 2020-03-13 Hits17292Downloads1826 Comment 0

2. chinaXiv:201810.00001 [pdf]


Subjects: Physics >> The Physics of Elementary Particles and Fields


submitted time 2018-10-08 Hits17445Downloads1242 Comment 0

3. chinaXiv:201806.00018 [pdf]


Subjects: Physics >> The Physics of Elementary Particles and Fields

利用段一士提出的规范势可分解和具有内部结构的思想,使用几何代数方法对SO(n)群用单位矢量场进行了分解,给出了一般形式,并讨论这个分解的性质;由此给出了SU(2)群和U(1)群用单位矢量分解的形式,这正是著名物理学家法捷耶夫1999年所给出的结果。使用SO(n)群规范势分解的一般形式讨论了Gauss-Bonnet-Chern 密度的局域拓扑结构,其整体拓扑结构正好是Gauss—Bonnet-Chern 定理,由拓扑结构很容易得到Euler- Poincaré 示性数的Morse 理论形式。利用SU(2)群规范势分解研究了-1/2 Bose-Einstein 凝聚体,得到了一个新的环流条件,也是Mernin-Ho 关系的推广。最后,使用段一士发现的三维黎曼几何的Torsion 张量与U(1)规范理论的关系,使用U(1)规范势分解研究了位错线与link 数的关系。

submitted time 2018-06-02 Hits2600Downloads1067 Comment 0

4. chinaXiv:201712.01591 [pdf]


Subjects: Physics >> The Physics of Elementary Particles and Fields

为了纪念段一士教授逝世一周年,我将我们发表在Helv.Phys.Acta.(1995,68:513)上的一篇`文章放在网上. 使用几何代数,对n 维紧致黎曼流形上球丛的自旋联络的一般分解进行了仔细的研究,利用这种分解理论,Eular-poincare 示性数的Gauss-Bonnet-Chern 密度能够表示为一个光滑矢量场,并取Delta 函数形式.然后对Gauss-Bonnet-Chern 密度的拓扑结构进行了讨论,经一步,通过这种拓扑结构得到了Eular-poincare 示性数Morse 理论的形式

submitted time 2017-12-01 Hits1933Downloads825 Comment 0

5. chinaXiv:201711.00007 [pdf]

Topcolor-A ssisted Supersym m etry

Chun Liu
Subjects: Physics >> The Physics of Elementary Particles and Fields

Ithasbeen known thatthe supersym m etric avor changing neutralcurrent problem can beavoided ifthesquarkstakethefollowing m asspattern,nam ely the #12;rsttwo generations with the sam e chirality are degenerate with m asses around the weak scale,while the third generation is very heavy. W e realize thisscenario through the supersym m etricextension ofa topcolorm odelwith gauge m ediated supersym m etry breaking.

submitted time 2017-09-17 Hits1386Downloads811 Comment 0

6. chinaXiv:201711.00008 [pdf]

1/Nc Expansion of the Heavy Baryon Isgur-Wise Functions

Chun Liu
Subjects: Physics >> The Physics of Elementary Particles and Fields

The 1/Nc expansion of the heavy baryon Isgur-Wise functions is discussed.Because of the contracted SU(2Nf ) light quark spin-flavor symmetry, the universality relations among the Isgur-Wise functions of b ! #3;c and #6;(?) b ! #6;(?)c are valid up to the order of 1/N2 c .

submitted time 2017-09-17 Hits1420Downloads779 Comment 0

7. chinaXiv:201711.00009 [pdf]

Four-quark Operators Relevant to B Meson Lifetimes from QCD Sum Rules

M.S. Baek, Jungil Lee,Chun Liu , H.S. Song
Subjects: Physics >> The Physics of Elementary Particles and Fields

At the order of 1/m3b , the B meson lifetimes are controlled by the hadronic matrix elements of some four-quark operators. The nonfactorizable magnitudes of these four-quark operator matrix elements are analyzed by QCD sum rules in the framework of heavy quark effective theory. The vacuum saturation for color-singlet four-quark operators is justified at hadronic scale, and the nonfactorizable effect is at a few percent level. However for color-octet four-quark operators, the vacuum saturation is violated sizably that the nonfactorizable effect cannot be neglected for the B meson lifetimes. The implication to the extraction of some of theparameters from B decays is discussed. The B meson lifetime ratio is predicted as τ (B?)/τ (B0) = 1.09 ± 0.02. However, the experimentalresult of the lifetime ratio τ (#3;b)/τ (B0) still cannot be explained.

submitted time 2017-09-17 Hits1348Downloads729 Comment 0

8. chinaXiv:201709.00039 [pdf]

Some Remarks on the Baryon-Meson Couplings in the 1/Nc Expansion

Chun Liu
Subjects: Physics >> The Physics of Elementary Particles and Fields

The original results for the baryon-pion couplings in the large Nc QCD can be understood in a simpler way in the Hartree-Fock picture. The large Nc relation and its 1/Nc correction between the heavy baryon- meson coupling and the light baryon-meson coupling are emphasized.Application to the baryon-ρ meson interactions is straightforward. The implications of recent experimental result for the strong coupling con-stants of the heavy baryon chiral lagrangian are discussed.

submitted time 2017-09-17 Hits1485Downloads817 Comment 0

9. chinaXiv:201709.00041 [pdf]

Heavy Baryon Masses in Large Nc HQET

Chun Liu
Subjects: Physics >> The Physics of Elementary Particles and Fields

We argue that in the large Nc HQET, the masses of the s-wave lowspin heavy baryons equal to the heavy quark mass plus proton mass approximately. To the subleading order, the heavy baryon mass 1/Nc expansion not only has the same form, but also has the same coefficients as that of the light baryon. Based on this, numerical analysis is made.

submitted time 2017-09-17 Hits1342Downloads746 Comment 0

10. chinaXiv:201709.00043 [pdf]

Phenomenology of A Supersymmetric Model for Fermion Mass Hierarchy

Chun Liu
Subjects: Physics >> The Physics of Elementary Particles and Fields

Some phenomenological aspects of a supersymmetric model for fermion mass hierarchy proposed previously are discussed. It is required that the lepton universality violation is near to its current experimental bound. The lepton number violation decay modes τ → 2eμ and 3μ maybe observable in the near future. The Majorana mass of electron-neutrino is predicted to be about 0.1 eV. The fine-tuning problem is discussed.

submitted time 2017-09-17 Hits1318Downloads717 Comment 0

12345678910  Last  Go  [26 Pages/ 258 Totals]