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相关论文: Anthropic Estimates for Many Parameters of Physics…

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Using considerations from the Quantum Zero Point Field and Thermodynamics, we show that the Planck Scale is the minimum (maximum mass) and the Photon Scale is the maximum (minimum mass) Scale in the universe. The arguments also deduce the…

综合物理 · 物理学 2007-08-29 Burra G. Sidharth

A cosmological constant fits all current dark energy data, but requires two extreme fine tunings, both of which are currently explained by anthropic arguments. Here we discuss anti-anthropic solutions to one of these problems: the cosmic…

宇宙学与河外天体物理 · 物理学 2015-06-17 Joseph M. Fedrow , Kim Griest

Anthropic probability distributions for the cosmological constant and for the sum of neutrino masses are updated using the WMAP-3 data release. The new distribution for Lambda is in a better agreement with observation than the earlier one.…

天体物理学 · 物理学 2010-10-27 Levon Pogosian , Alexander Vilenkin

The luminosity ratio of electrons to protons as it is produced in stochastic acceleration processes in cosmic ray sources is an important quantity relevant for several aspects of the modeling of the sources themselves. It is usually assumed…

高能天体物理现象 · 物理学 2017-02-27 Lukas Merten , Julia Becker Tjus , Björn Eichmann , Ralf-Jürgen Dettmar

Precise measurements of the boron-to-carbon and boron-to-oxygen ratios by DAMPE show clear hardenings around $100$ GeV/n, which provide important implications on the production, propagation, and interaction of Galactic cosmic rays. In this…

高能天体物理现象 · 物理学 2023-03-07 Peng-Xiong Ma , Zhi-Hui Xu , Qiang Yuan , Xiao-Jun Bi , Yi-Zhong Fan , Igor V. Moskalenko , Chuan Yue

Theoretical predictions underlying determinations of the fine structure constant alpha and the electron-to-proton mass ratio m_e/m_p are reviewed, with the emphasis on the bound electron magnetic anomaly g-2. The theory of the interaction…

高能物理 - 唯象学 · 物理学 2010-12-13 Andrzej Czarnecki , Matthew Dowling , Jorge Mondejar , Jan H. Piclum

Based on the concept of extended particles recently introduced we perform a Gedankenexperiment accelerating single electrons with photons of suitably low frequency. Accounting for relativistic time dilation due to the acquired velocity and…

量子物理 · 物理学 2007-05-23 W. A. Hofer

We explore the possibility that the dark energy is due to a potential of a scalar field and that the magnitude and the slope of this potential in our part of the universe are largely determined by anthropic selection effects. We find that,…

高能物理 - 理论 · 物理学 2009-09-29 Jaume Garriga , Andrei Linde , Alexander Vilenkin

The general structure of the renormalization group equations for the low energy effective field theory formulation of pure gravity is presented. The solution of these equations takes a particular simple form if the mass scale of the…

高能物理 - 理论 · 物理学 2009-10-30 Mario Atance , Jose Luis Cortes

Lattice theory is used to explain the rest masses of the stable mesons and baryons and their spin. From the mass of the charged pi-mesons follows the mass of the muons. From the mass of the muons follows the mass of the electron. We do not…

综合物理 · 物理学 2015-10-19 E. L. Koschmieder

It is widely believed that classical electromagnetism is either unphysical or inconsistent, owing to pathological behavior when self-force and radiation reaction are non-negligible. We argue that there is no inconsistency as long as it is…

经典物理 · 物理学 2015-10-13 Andrew M. Steane

Maxwell's equations and the equations governing charged particle dynamics are presented for a rotating coordinate system with the global time coordinate of an observer on the rotational axis. Special care is taken in defining the relevant…

天体物理学 · 物理学 2012-08-27 Paul N. Arendt,

Suggested non-linear, non-gauge modification of the Maxwell theory of electromagnetism based on correlation between electromagnetic potential, $A_a$, and metric, $g_{ab}$, such that tensor $G_{ab} = g_{ab} - l^2{A}_a{A}_b$ represents…

综合物理 · 物理学 2007-05-23 Dmitriy Palatnik

The paper collects the various pieces of information concerning the relative size of m_u, m_d and m_s. A coherent picture results, which constrains the mass ratios to a rather narrow range: m_u/m_d = 0.553 \pm 0.043, m_s/m_d = 18.9 \pm 0.8.

高能物理 - 唯象学 · 物理学 2008-11-26 H. Leutwyler

We propose the relations 1/e - e =3 and tan(2theta_W)=3/2, where e is the positron charge and theta_W is the weak angle. Present experimental data support these relations to a very high accuracy. We suggest that some duality relates the…

高能物理 - 唯象学 · 物理学 2007-05-23 G. Lopez Castro , J. Pestieau

We derive quantitative estimates proving the conditional propagation of chaos for large stochastic systems of interacting particles subject to both idiosyncratic and common noise. We obtain explicit bounds on the relative entropy between…

概率论 · 数学 2024-07-02 Paul Nikolaev

We consider the Einstein-Maxwell system of equations in the context of isotropic coordinates for matter distributions with anisotropy in the presence of an electric field. We assume a polytropic equation of state for the matter…

广义相对论与量子宇宙学 · 物理学 2015-12-31 Sifiso A. Ngubelanga , Sunil D. Maharaj

The impressive power-law decay of the energy spectrum of cosmic rays over more than thirty orders of magnitude in intensity and for energies ranging over eleven decades between $\simeq 10^9 $eV and $\simeq 10^{20} $eV is actually dotted…

高能天体物理现象 · 物理学 2014-07-21 Olivier Deligny

Many structures in nature are invariant under the transformation (p,r)->(br,-p/b), where b is some scale factor. Born's reciprocity hypothesis affirms that this invariance extends to the entire Hamiltonian and equations of motion. We…

高能物理 - 理论 · 物理学 2008-12-18 Robert Delbourgo , Darrel Lashmar

We have developed a fast method for predicting the angular power spectrum, C_l, of the cosmic microwave background given cosmological parameters and a primordial power spectrum of perturbations. After pre--computing the radiation…

天体物理学 · 物理学 2009-11-07 Manoj Kaplinghat , Lloyd Knox , Constantinos Skordis