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近年来国外的超光速实验 被引量:9
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作者 黄志洵 《北京石油化工学院学报》 2002年第4期20-26,共7页
近10年来,多国科学家进行了微波及光脉冲的超光速传播实验,其中不少实验是利用所谓量子隧穿效应而实现超光速的,而意大利科学家则在微波和开放自由空间条件下在短距离上完成了超光速实验。2001年8月,J.Webb等人报告了对精细结构常数a的... 近10年来,多国科学家进行了微波及光脉冲的超光速传播实验,其中不少实验是利用所谓量子隧穿效应而实现超光速的,而意大利科学家则在微波和开放自由空间条件下在短距离上完成了超光速实验。2001年8月,J.Webb等人报告了对精细结构常数a的变化的研究结果,该研究是根据对类星体的观测,所分析的光是宇宙早期时天体发出的光;分析发现那时的a较小(故c较大)等等。笔者对超光速实验作了较详尽报道。还讨论了关于超光速相速实验方面的一些新情况。 展开更多
关键词 超光速 负相速 负群速 精细结构常数 物质波
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Unity Formulas for the Coupling Constants and the Dimensionless Physical Constants
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作者 Stergios Pellis 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2023年第1期245-294,共50页
In this paper in an elegant way will be presented the unity formulas for the coupling constants and the dimensionless physical constants. We reached the conclusion of the simple unification of the fundamental interact... In this paper in an elegant way will be presented the unity formulas for the coupling constants and the dimensionless physical constants. We reached the conclusion of the simple unification of the fundamental interactions. We will find the formulas for the Gravitational constant. It will be presented that the gravitational fine-structure constant is a simple analogy between atomic physics and cosmology. We will find the expression that connects the gravitational fine-structure constant with the four coupling constants. Perhaps the gravitational fine-structure constant is the coupling constant for the fifth force. Also will be presented the simple unification of atomic physics and cosmology. We will find the formulas for the cosmological constant and we will propose a possible solution for the cosmological parameters. Perhaps the shape of the universe is Poincare dodecahedral space. This article will be followed by the energy wave theory and the fractal space-time theory. 展开更多
关键词 fine-structure constant Proton To Electron Mass Ratio Dimensionless Physical constants Coupling constant Gravitational constant Avogadro’s Number Fundamental Interactions Gravitational fine-structure constant Cosmological constant
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Golden Quartic Polynomial and Moebius-Ball Electron 被引量:5
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作者 Hans Hermann Otto 《Journal of Applied Mathematics and Physics》 2022年第5期1785-1812,共28页
A symmetrical quartic polynomial, named golden one, can be connected to coefficients of the icosahedron equation as well as to the gyromagnetic correction of the electron and to number 137. This number is not a mystic... A symmetrical quartic polynomial, named golden one, can be connected to coefficients of the icosahedron equation as well as to the gyromagnetic correction of the electron and to number 137. This number is not a mystic one, but is connected with the inverse of Sommerfeld’s fine-structure constant and this way again connected with the electron. From number-theoretical realities, including the reciprocity relation of the golden ratio as effective pre-calculator of nature’s creativeness, a proposed closeness to the icosahedron may point towards the structure of the electron, thought off as a single-strand compacted helically self-confined charged elemantary particle of less spherical but assumed blunted icosahedral shape generated from a high energy double-helix photon. We constructed a chiral Moebius “ball” from a 13 times 180&#730;twisted double helix strand, where the turning points of 12 generated slings were arranged towards the vertices of a regular icosahedron, belonging to the non-centrosymmetric rotation group I532. Mathematically put, we convert the helical motion of an energy quantum into a stationary motion on a Moebius stripe structure. The radius of the ball is about the Compton radius. This chiral closed circuit Moebius ball motion profile can be tentatively thought off as the dominant quantum vortex structure of the electron, and the model may be named CEWMB (Charged Electromagnetic Wave Moebius Ball). Also the gyromagnetic factor of the electron (g<sub>e</sub> = 2.002319) can be traced back to this special structure. However, nature’s energy infinity principle would suggest a superposition with additional less dominant (secondary) structures, governed also by the golden mean. A suggestion about the possible structure of delocalized hole carriers in the superconducting state is given. 展开更多
关键词 Golden Qartic Polynomial Number Theory Icosahedron Equation Golden Mean Fifth Power of the Golden Mean Moebius Ball Electron structure CHIRALITY fine-structure constant Fibonacci Number 13 Lucas Numbers SUPERCONDUCTIVITY
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Reciprocity as an Ever-Present Dual Property of Everything 被引量:5
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作者 Hans Hermann Otto 《Journal of Modern Physics》 2020年第1期98-121,共24页
Reciprocity may be understood as relation of action and reaction in the sense of Hegel’s philosophical definition. Quoting Kant, freedom and ethical necessities are reciprocally limited. In this contribution, a more ... Reciprocity may be understood as relation of action and reaction in the sense of Hegel’s philosophical definition. Quoting Kant, freedom and ethical necessities are reciprocally limited. In this contribution, a more mathematical than philosophical reflection about reciprocity as an ever-present dual property of everything was given. As a crystallographer, the author is familiar with the action of Fourier transforms and the relation between a crystal lattice and its reciprocal lattice, already pointing to the duality between particles and waves. A generalization of the reciprocity term was stimulated by results of the famous Information Relativity (IR) theory of Suleiman with its proven physical manifestation of matter-wave duality, compared to the set-theoretical E-Infinity theory developed by El Naschie, where the zero set represents the pre-quantum particle, and the pre-quantum wave is assigned to the empty set boundary surrounding the pre-particle. Expectedly, the most irrational number of the golden mean is involved in these thoughts, because this number is intimately connected with its inverse. An important role plays further Hardy’s maximum quantum entanglement probability as the fifth power of &phi;and its connection to the dark matter. Remembering, the eleven dimensions in Witten’s M-theory may be decomposed into the Lucas number L5 = 11 = &phi;&minus;5 – &phi;5. Reciprocity is indeed omnipresent in our world as piloting waves that accompany all observable earthen and cosmic matter. As a side effect of the IR theory some fundamental constants such as the gyromagnetic factor of the electron, Sommerfeld’s fine-structure constant as well as the charge of the electron must be marginally changed caused by altered relativistic corrections. Consequences also arise for our vision about the evolution of life and consciousness. 展开更多
关键词 RECIPROCITY Reciprocal Lattice Fourier Transform Archimedes’ constant Matter-Wave Duality Pilot WAVE Golden Mean E-INFINITY THEORY Information Relativity THEORY Gyromagnetic Factor fine-structure constant Quantum Entanglement Dark MATTER and Cosmos Superconductivity
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A Fine-Structure Constant Can Be Explained Using the Electrochemical Method
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作者 Tomofumi Miyashita 《Journal of Modern Physics》 CAS 2023年第2期160-170,共11页
We proposed an empirical equation for a fine-structure constant: . Then, . where m<sub>p</sub> and m<sub>e</sub> are the rest mass of a proton and the rest mass of an electron, respectively. In... We proposed an empirical equation for a fine-structure constant: . Then, . where m<sub>p</sub> and m<sub>e</sub> are the rest mass of a proton and the rest mass of an electron, respectively. In this report, using the electrochemical method, we proposed an equivalent circuit. Then, we proposed a refined version of our own old empirical equations about the electromagnetic force and gravity. Regarding the factors of 9/2 and π, we used 3.132011447 and 4.488519503, respectively. The calculated values of T<sub>c</sub> and G are 2.726312 K and 6.673778 × 10<sup>-11</sup> (m<sup>3</sup>&sdot;kg<sup>-1</sup>&sdot;s<sup>-2</sup>). 展开更多
关键词 fine-structure constant Electrochemical Method
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Possible Relations of Cosmic Microwave Background with Gravity and Fine-Structure Constant 被引量:2
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作者 Qinghua Cui 《Journal of Modern Physics》 CAS 2022年第7期1045-1052,共8页
Gravity is the only force that cannot be explained by the Standard Model (SM), the current best theory describing all the known fundamental particles and their forces. Here we reveal that gravitational force can be pr... Gravity is the only force that cannot be explained by the Standard Model (SM), the current best theory describing all the known fundamental particles and their forces. Here we reveal that gravitational force can be precisely given by mass of objects and microwave background (CMB) radiation. Moreover, using the same strategy we reveal a relation by which CMB can also precisely define fine-structure constant α. 展开更多
关键词 GRAVITY Gravitational constant Cosmic Microwave Background fine-structure constant
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^(6)Li冷原子干涉仪的实现及反冲频率精密测量
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作者 芮扬 张亮 +4 位作者 段春泱 刘鹏悦 余石川 武跃龙 武海斌 《激光与光电子学进展》 CSCD 北大核心 2023年第11期248-255,共8页
实现了具有最轻质量碱金属^(6)Li的冷原子干涉仪,并通过精确测量其反冲频率初步获得精细结构常数。为了克服^(6)Li原子的总角动量为半整数所导致的对磁场敏感的困难,提出一种磁不敏感Raman跃迁,实现了垂直Raman光的共轭Ramsey Bordé... 实现了具有最轻质量碱金属^(6)Li的冷原子干涉仪,并通过精确测量其反冲频率初步获得精细结构常数。为了克服^(6)Li原子的总角动量为半整数所导致的对磁场敏感的困难,提出一种磁不敏感Raman跃迁,实现了垂直Raman光的共轭Ramsey Bordé型原子干涉仪,其相干时间超过2.3 ms。通过几何关系用四组干涉仪消除Raman光束之间角度带来的误差。测量得到的反冲频率ωr为2π×73672.789(36)Hz,精细结构常数为1/137.035976(33),是迄今为止基于冷原子干涉仪对^(6)Li反冲频率的最精确测量。^(6)Li冷原子干涉仪的实现不仅丰富了原子干涉仪的元素,而且由于其反冲频率大的特点,在精密测量领域具有极大的潜力。 展开更多
关键词 反冲频率测量 冷原子干涉仪 精细结构常数
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利用激光冷却原子束测量氦原子精密光谱 被引量:4
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作者 孙羽 冯高平 +4 位作者 程存峰 涂乐义 潘虎 杨国民 胡水明 《物理学报》 SCIE EI CAS CSCD 北大核心 2012年第17期182-189,共8页
~4He原子2~3S_1→2~3P_(0,1,2)跃迁的精细结构分裂,目前在理论和实验上都能够达到10^(-8)水平的精度,并可被应用于测定精细结构常数α,和对量子电动力学进行检验.该方面实验研究的关键,是需要提高测量信噪比,并消除各种可能的系统偏差,... ~4He原子2~3S_1→2~3P_(0,1,2)跃迁的精细结构分裂,目前在理论和实验上都能够达到10^(-8)水平的精度,并可被应用于测定精细结构常数α,和对量子电动力学进行检验.该方面实验研究的关键,是需要提高测量信噪比,并消除各种可能的系统偏差,将这一精细结构分裂测量到亚kHz水平.在设计的这套实验方案中,首次结合激光冷却原子技术,通过激光横向冷却来提高亚稳态氦原子束的束流强度,并对三态亚稳态氦原子进行偏折,将其从原子束中分离,从而大幅降低测量背景,并利用频率锁定激光器的边带扫描的方式来进行光谱测量,以使得扫描测量中保持足够的频率精度.在目前基本搭建成的实验装置上,实验方法的可行性已经获得验证,分析表明有望实现亚千赫兹水平的测量准确度. 展开更多
关键词 氦原子 精密光谱 精细结构常数 激光冷却
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On the Possibility of Variable Speed of Light in Vacuum 被引量:1
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作者 Qinghua Cui 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2022年第4期927-934,共8页
We previously revealed a quantitative relation by which the fine-structure constant α can be described by the temperature T of cosmic microwave background (CMB) with several other fundamental constants, including the... We previously revealed a quantitative relation by which the fine-structure constant α can be described by the temperature T of cosmic microwave background (CMB) with several other fundamental constants, including the elementary charge e, the Boltzmann constant k, the Planck constant h, and the light of speed in vacuum c. Given that the value of α is quite conserved but T is variable across CMBs, we propose that c changes with T and can be given by T, the present CMB temperature T<sub>0</sub> and the present light speed c<sub>0</sub>. As T is continuously decreasing, c is thus predicted to decrease at a rate of ~2.15 centimeters/second (cm/s) per year. Moreover, we provide a lot of evidence to support this finding. In conclusion, this study suggests a possibility of variable speed of light in vacuum. 展开更多
关键词 Speed of Light in Vacuum fine-structure constant Cosmic Microwave Background Earth-Moon Distance
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氦原子2~3S—2~3P精密光谱研究 被引量:3
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作者 郑昕 孙羽 +1 位作者 陈娇娇 胡水明 《物理学报》 SCIE EI CAS CSCD 北大核心 2018年第16期165-182,共18页
氦原子是最基本的多电子原子,其精密谱是十分理想的检验多电子量子电动力学计算的平台,同时也是利用原子能级结构测定精细结构常数α的理想体系,还能获得原子核结构信息.本文结合我们团队的工作,综述基于氦原子的少体原子精密光谱研究.... 氦原子是最基本的多电子原子,其精密谱是十分理想的检验多电子量子电动力学计算的平台,同时也是利用原子能级结构测定精细结构常数α的理想体系,还能获得原子核结构信息.本文结合我们团队的工作,综述基于氦原子的少体原子精密光谱研究.其中,主要包括氦原子2~3P_J精细结构分裂,以及2~3S—2~3P跃迁频率测定等研究,并对相关工作的前景进行了展望. 展开更多
关键词 氦原子 精密光谱 精细结构常数 量子电动力学
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Empirical Equation for a Fine-Structure Constant with Very High Accuracy
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作者 Tomofumi Miyashita 《Journal of Modern Physics》 2022年第4期336-346,共11页
We proposed several empirical equations about the electromagnetic force and gravity. The main three equations were connected mathematically. However, these equations have small errors of approximately 10<sup>-3&... We proposed several empirical equations about the electromagnetic force and gravity. The main three equations were connected mathematically. However, these equations have small errors of approximately 10<sup>-3</sup>. Therefore, we attempted to improve the accuracy. Regarding the factors of 9/2 and π, we used 4.48870 and 3.13189, respectively. Then, the errors become smaller than 10<sup>-5</sup>. However, we could not show any reasons for these compensations. We noticed the following equations. , . Then, we can explain the von Klitzing constant Rk=3.131777037×4.488855463×13.5×136.0113077. It is well known that the von Klitzing constant can be measured with very high accuracy. We examined this equation for the von Klitzing constant in detail. Then, we noticed that 136.0113 should be uniquely determined. The von Klitzing constant is highly related to the fine-structure constant. After the examination of the numerical connections, we can explain the value of 137.035999081 as a fine-structure constant with very high accuracy. Then, we attempt to explain this value from Wagner’s equation. 展开更多
关键词 fine-structure constant Wagner’s Equation
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Observational Constraints on Varying Alpha in Λ(α)CDM Cosmology
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作者 韦浩 薛冬泽 《Communications in Theoretical Physics》 SCIE CAS CSCD 2017年第11期632-640,共9页
In this work, we consider the so-called Λ(α)CDM cosmology with Λ∝α^(-6) while the fine-structure"constant" α is varying. In this scenario, the accelerated expansion of the universe is driven by the cos... In this work, we consider the so-called Λ(α)CDM cosmology with Λ∝α^(-6) while the fine-structure"constant" α is varying. In this scenario, the accelerated expansion of the universe is driven by the cosmological"constant" Λ(equivalently the vacuum energy), and the varying α is driven by a subdominant scalar field ? coupling with the electromagnetic field. The observational constraints on the varying α and Λ∝α^(-6) models with various couplings BF(?) between the subdominant scalar field ? and the electromagnetic field are considered. 展开更多
关键词 cosmological constant fine-structure constant observational constraints vacuum energy observational cosmology
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A New Unified Electro-Gravity Theory for the Electron, and the Fundamental Origin of the Fine Structure Constant and the Casimir Effect
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作者 Nirod K. Das 《Journal of High Energy Physics, Gravitation and Cosmology》 2021年第1期66-87,共22页
A rigorous model for the electron is presented by generalizing the Coulomb’s Law or Gauss’s Law of electrostatics, using a unified theory of electricity and gravity. The permittivity of the free-space is allowed to ... A rigorous model for the electron is presented by generalizing the Coulomb’s Law or Gauss’s Law of electrostatics, using a unified theory of electricity and gravity. The permittivity of the free-space is allowed to be variable, dependent on the energy density associated with the electric field at a given location, employing generalized concepts of gravity and mass/energy density. The electric field becomes a non-linear function of the source charge, where the concept of the energy density needs to be properly defined. Stable solutions are derived for a spherically symmetric, surface-charge distribution of an elementary charge. This is implemented by assuming that the gravitational field and its equivalent permittivity function is proportional to the energy density, as a simple first-order approximation, with the constant of proportionality, referred to as the Unified Electro-Gravity (UEG) constant. The stable solution with the lowest mass/energy is assumed to represent a “static” electron without any spin. Further, assuming that the mass/energy of a static electron is half of the total mass/energy of an electron including its spin contribution, the required UEG constant is estimated. More fundamentally, the lowest stable mass of a static elementary charged particle, its associated classical radius, and the UEG constant are related to each other by a dimensionless constant, independent of any specific value of the charge or mass of the particle. This dimensionless constant is numerologically found to be closely related to the fine structure constant. This possible origin of the fine structure constant is further strengthened by applying the proposed theory to successfully model the Casimir effect, from which approximately the same above relationship between the UEG constant, electron’s mass and classical radius, and the fine structure constant, emerges. 展开更多
关键词 Electron structure fine-structure constant Casimir Effect Unified Electro-Gravity Theory
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Decoding the Information of Life 被引量:1
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作者 ShantilalG. Goradia 《Journal of Physical Science and Application》 2015年第3期191-195,共5页
We link nuclear force with gravity. We use statistical entropy to link fine-structure constant (ct) and cosmological constant, showing mystical number 137 (as reciprocal of increasing entropy of the universe) as n... We link nuclear force with gravity. We use statistical entropy to link fine-structure constant (ct) and cosmological constant, showing mystical number 137 (as reciprocal of increasing entropy of the universe) as negative entropy needed for life to exist. If our computational route applies to the physical universe, it should apply to life. Molecular biology is searching for the fundamental source of information that would link to the information in DNA. 展开更多
关键词 3rd law of thermodynamics fine-structure constant cosmological constant strong coupling information.
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Calculation of the Fine-Structure Constant
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作者 Jesús Sánchez 《Journal of High Energy Physics, Gravitation and Cosmology》 2018年第3期510-518,共9页
The fine-structure constant α [1] is a constant in physics that plays a fundamental role in the electromagnetic interaction. It is a dimensionless constant, defined as: (1) being q the elementary charge, ε0 the vacu... The fine-structure constant α [1] is a constant in physics that plays a fundamental role in the electromagnetic interaction. It is a dimensionless constant, defined as: (1) being q the elementary charge, ε0 the vacuum permittivity, h the Planck constant and c the speed of light in vacuum. The value shown in (1) is according CODATA 2014 [2]. In this paper, it will be explained that the fine-structure constant is one of the roots of the following equation: (2) being e the mathematical constant e (the base of the natural logarithm). One of the solutions of this equation is: (3) This means that it is equal to the CODATA value in nine decimal digits (or the seven most significant ones if you prefer). And therefore, the difference between both values is: (4) This coincidence is higher in orders of magnitude than the commonly accepted necessary to validate a theory towards experimentation. As the cosine function is periodical, the Equation (2) has infinite roots and could seem the coincidence is just by chance. But as it will be shown in the paper, the separation among the different solutions is sufficiently high to disregard this possibility. It will also be shown that another elegant way to show Equation (2) is the following (being i the imaginary unit): (5) having of course the same root (3). The possible meaning of this other representation (5) will be explained. 展开更多
关键词 fine-structure constant Electromagnetism CODATA VALUES ATOM Electron Quantum NUMBERS Trigonometric Functions EXPONENTIAL Function
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Spatial and temporal variations of the fine-structure constant in the Finslerian universe
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作者 李昕 林海南 《Chinese Physics C》 SCIE CAS CSCD 2017年第6期110-114,共5页
Recent observations show that the electromagnetic fine-structure constant, αe, may vary with space and time. In the framework of Finsler spacetime, we propose here an anisotropic cosmological model, in which both spa... Recent observations show that the electromagnetic fine-structure constant, αe, may vary with space and time. In the framework of Finsler spacetime, we propose here an anisotropic cosmological model, in which both spatial and temporal variations of αe are allowed. Our model naturally leads to the dipole structure of αe, and predicts that the dipole amplitude increases with time. We fit our model to the most up-to-date measurements of αe from the quasar absorption lines. It is found that the dipole direction points towards(l, b) =(330.2°±7.3°,-13.0°±5.6°)in galactic coordinates, and the anisotropic parameter is b_0 =(0.47±0.09)×10^-5, which corresponds to a dipole amplitude(7.2±1.4)×10^-8 at redshift z = 0.015. This is consistent with the upper limit of the variation of αe measured in the Milky Way. We also fit our model to Union2.1 type Ia supernovae, and find that the preferred direction of Union2.1 is consistent with the dipole direction of αe. 展开更多
关键词 Finsler spacetime fine-structure constant anisotropy of the Universe
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Reverse Engineering Approach to Quantum Electrodynamics
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作者 Walter Smilga 《Journal of Modern Physics》 2013年第5期561-571,共11页
The S matrix of e-e scattering has the structure of a projection operator that projects incoming separable product states onto entangled two-electron states. In this projection operator the empirical value of the fine... The S matrix of e-e scattering has the structure of a projection operator that projects incoming separable product states onto entangled two-electron states. In this projection operator the empirical value of the fine-structure constant α acts as a normalization factor. When the structure of the two-particle state space is known, a theoretical value of the normalization factor can be calculated. For an irreducible two-particle representation of the Poincaré group, the calculated normalization factor matches Wyler’s semi-empirical formula for the fine-structure constant α. The empirical value of α, therefore, provides experimental evidence that the state space of two interacting electrons belongs to an irreducible two-particle representation of the Poincaré group. 展开更多
关键词 Quantum ELECTRODYNAMICS fine-structure constant ENTANGLEMENT Gauge INVARIANCE Reverse Engineering
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精细结构常数的物理意义和理论计算
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作者 王明美 《皖西学院学报》 2006年第5期45-47,共3页
本文介绍原子物理学中重要的无量纲常数之一的精细结构常数的由来,讨论它的物理意义和理论计算。
关键词 精细结构常数 无量纲常数 物理意义
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与爱因斯坦宇宙学常数相关的狭义相对论:评介德西特不变和反德西特不变狭义相对论
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作者 闫沐霖 《科学通报》 EI CAS CSCD 北大核心 2017年第12期1241-1255,共15页
通常的狭义相对论是在庞加莱变换下不变的,它的基本度规为闵科夫斯基时空度规,该度规满足没有宇宙学常数L的真空爱因斯坦方程.本文指出:L10时的狭义相对论是德西特/反德西特不变狭义相对论.求解L10的真空爱因斯坦方程,得到这种拓展的狭... 通常的狭义相对论是在庞加莱变换下不变的,它的基本度规为闵科夫斯基时空度规,该度规满足没有宇宙学常数L的真空爱因斯坦方程.本文指出:L10时的狭义相对论是德西特/反德西特不变狭义相对论.求解L10的真空爱因斯坦方程,得到这种拓展的狭义相对论的基本度规是陆启铿-邹振隆-郭汉英1974年提出的Beltrami度规;用欧拉-拉格朗日方程证明Beltrami时空的自由粒子运动是惯性运动.本文求出了德西特/反德西特不变狭义相对论的全部凯林(Killing)矢量,证明了Beltrami时空是最大对称性空间,导出来全部守恒量.构造了理论的正则形式,发现了正、负正则能量的色散关系的不对称性;实现了正则量子化,导出了相对论性波方程,从而建立了德西特/反德西特不变的相对论量子力学.简要介绍了通过天文观测原子(或离子)能级劈裂来探测精细结构常数a改变的实验.实验结果在4~5σ置信度内否定了庞加莱不变狭义相对论的预言,发现在z≈{1~3}处ɑ_z≠ɑ_0.由于原子或离子能级的精细结构是相对论量子力学的结果,所以观测实验支持在红移z≥1的狭义相对论量子力学中的L修正不可忽略.这是对德西特/反德西特不变狭义相对论的实验支持,是超出现有物理学标准模型的新物理. 展开更多
关键词 爱因斯坦宇宙学常数 德西特不变和反德西特不变狭义相对论 相对论量子力学 光谱的精细结构 精细结构常数的改变
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2-5GeV能区R值的测量
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作者 赵政国 《中国科学基金》 CSCD 北大核心 2001年第3期149-152,共4页
2—5GeV能区的R值对于精确确定QED跑动精细结构常数α(MZ2)、进而确定黑格斯粒子的质量具有重要意义,同时对μ子反常磁矩αμ的物理解释也有重要贡献。北京正负电子对撞机(BEPC)/北京谱仪(BES)在该能区进行了R值扫描测量,本文给出85个... 2—5GeV能区的R值对于精确确定QED跑动精细结构常数α(MZ2)、进而确定黑格斯粒子的质量具有重要意义,同时对μ子反常磁矩αμ的物理解释也有重要贡献。北京正负电子对撞机(BEPC)/北京谱仪(BES)在该能区进行了R值扫描测量,本文给出85个扫描点的初步结果,误差降低到原有水平的一半左右。 展开更多
关键词 R值 强子产生总截面 精细结构常数 μ子反常磁矩
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