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The littlest Higgs model with T-parity and some lepton flavor violation decay processes

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Science china(physics,Mechanics & Astronomy) 2010年第11期53卷 1968-1974页

作者： YUE ChongXing,MA Wei,ZHANG TingTing,LIU Wei & LIU JinYan department of physics,Liaoning {2. University,Dalian 11602.,china 1. department of physics Liaoning Normal University Dalian 116029 China

The new particles predicted by the littlest Higgs model with T-parity (called LHT model) can induce the lepton flavor violation (LFV) couplings at the one-loop level,which can add contributions to some LFV *** into account the constraints of the experimental data on the relevant free parameters,we calculate the branching ratios of the LFV decay processes Z → l ˉl and τ-→μ-P 1 P 2.with P 1 P 2.= π + π-,K + K-,and K0 ˉK 0 in the context of this new physics *** find that the LHT model can indeed make significant contributions to some of these LFV decay *** Z factory option for the future high energy e + e-collider experiments will give severe constraints on the LHT model.

关键词： littlest Higgs model lepton flavor violation branching ratios

Morphology and the M_(BH)-σ_* relation for NLS1s

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Science china(physics,Mechanics & Astronomy) 2010年第S1期53卷 256-258页

作者： BIAN WeiHao & HUANG Li department of physics and Institute of Theoretical physics,Nanjing normal University,Nanjing 2.0097,china 1. department of physics and Institute of Theoretical physics Nanjing Normal University Nanjing 210097 China

For a sample of 33 narrow-line Seyfert 1 galaxies(NLS1s)(z<0.1) from the Sloan Digital Sky Survey,we investigate their *** find that 2. NLS1s show clear bar structure and 9 NLS1s show no bar *** bar frequency in this ... 详细信息

For a sample of 33 narrow-line Seyfert 1 galaxies(NLS1s)(z2. NLS1s show clear bar structure and 9 NLS1s show no bar *** bar frequency in this NLS1s sample is about 70%.We do not find any difference in the location of NLS1s with or without bars on the MBH-σ* diagram.

关键词： active galaxies bar black hole mass

强激光场中原子的束缚态和连续态对高次谐波的影响

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物理学报 2001年第10期50卷 1902-1906页

作者：周效信李白文西北师范大学物理系兰州730070 中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室武汉430071

利用基函数展开结合线性最小二乘法方法求解含时薛定谔方程 ,研究了一维原子在强激光场中产生高次谐波过程中 ,束缚态和连续态以及它们的干涉效应对高次谐波的影响 .结果表明 ,低能的高次谐波是由束缚态束缚态之间的相互作用产生的 ,... 详细信息

利用基函数展开结合线性最小二乘法方法求解含时薛定谔方程 ,研究了一维原子在强激光场中产生高次谐波过程中 ,束缚态和连续态以及它们的干涉效应对高次谐波的影响 .结果表明 ,低能的高次谐波是由束缚态束缚态之间的相互作用产生的 ,高能的高次谐波是由束缚态连续态之间的相互作用产生的 ,而截断频率后消失的高次谐波是由于束缚态束缚态与束缚态

关键词：束缚态连续态线性最小二乘法强激光场高次谐波原子物理学量子力学含时薛定谔方程

电磁直线加速动态黑洞时空中Dirac粒子的Hawking辐射

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物理学报 2003年第8期52卷 2096-2101页

作者：张靖仪赵峥北京师范大学物理系

研究了作直线加速运动的电磁黑洞视界面上Dirac粒子的Hawking辐射 .首先 ,构造对称化零标架 ,计算旋系数 ,导出Dirac方程 ,并对其进行化简 .然后 ,通过引入广义乌龟坐标 ,在视界面上将Dirac方程退耦 .利用Damour Ruffini方法 ,求出了温... 详细信息

研究了作直线加速运动的电磁黑洞视界面上Dirac粒子的Hawking辐射 .首先 ,构造对称化零标架 ,计算旋系数 ,导出Dirac方程 ,并对其进行化简 .然后 ,通过引入广义乌龟坐标 ,在视界面上将Dirac方程退耦 .利用Damour Ruffini方法 ,求出了温度以及热谱公式 ,并对所得结果进行了讨论 .

关键词：电磁直线加速动态黑洞时空 Dirac粒子 Hawking辐射 Damour-Ruffini方法温度热谱公式视界面

Dispersion of Soluble Matters in Newton-dipolar Stratified Fluid and Effects of Peripheral Layer

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Communications in Nonlinear Science and Numerical Simulation 1998年第4期3卷 236-241页

作者： Zhangji LU, Shousheng DONG, Yu SHEN and Guangping ZHENG (department of Mechanics and Engineering Science, Fudan University, Shanghai 2.0433,china)(department of physics, East china normal University, Shanghai 2.0062. china) Dept. of Mechanics and Eng. Science Fudan University Shanghai 200433 China department of physics East China Normal University Shanghai 200062 China

In the paper, the dispersion law and the concentration distributions of soluble matters in Newton-dipolar fluids flowing through a circular tube have been investigated. Main results are: (1) for the dependence of M on A (or H), the completely opposite trends are obtained in the cases with and without the peripheral layer. (2. effects of δ on　M have the minimum values near 8=0.85-0.9. (3) various models such as couple stress,micropolar, dipolar, Newton-newtonian, Newton-couple stress and Newton-micropolar　model etc. are all special cases of Newton-dipolar fluid (where Mz=0). WhenMz≠ 0,however, there are evident differences between the Newton-dipolar fluid and the Newtoncouple stress fluid, the Newton-micropolar fluid.

关键词： dipolar fluid dispersion effects of a peripheral layer tube flow of complex fluid

N-Soliron-like Solution of Ito Equation

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Communications in Theoretical physics 2004年第11期 641-644页

作者： ZHANG Yi~(1,2.) CHEN Deng-Yuan~2.~1department of Mathematics,Zhejiang normal University,Jinhua 32.004,{2. ~2.0} of Mathematics,Shanghai University,Shanghai 2.0436,{2. department of Mathematics，Zhejiang normal University，Jinhua 32.004，{2. department of Mathematics，Shanghai University，Shanghai 2.0436，china department of Mathematics，Shanghai University，Shanghai 2.0436，china

By using the extended Hirota’s method,the N-soliton-like solution of the Ito equation is ***-thermore,we also investSgate the soliton-like solution interaction and find singularity.

关键词： soliton-like solution Ito equation Hirota method

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控制双激光脉冲的宽度提高N2.子的取向

物理学报 2008年第7期57卷 4099-4103页

作者：杨增强周效信西北师范大学物理与电子工程学院

提出了通过控制双激光脉冲宽度的方法来提高N2.子取向程度.利用数值方法求解了N2.子刚性转子模型在双激光脉冲作用下的薛定谔方程,计算了双原子分子N2.总强度固定的两束激光脉冲作用下,不同脉冲宽度对于N2.子取向的影响.研究结果表... 详细信息

提出了通过控制双激光脉冲宽度的方法来提高N2.子取向程度.利用数值方法求解了N2.子刚性转子模型在双激光脉冲作用下的薛定谔方程,计算了双原子分子N2.总强度固定的两束激光脉冲作用下,不同脉冲宽度对于N2.子取向的影响.研究结果表明,通过调整两束激光脉冲的宽度,选择合适的延迟时间能够有效提高N2.子的取向程度.

关键词：双激光脉冲分子取向脉冲宽度