Results 291 to 300 of about 1,049,387 (333)

Is the anapole moment a physical observable?

Canadian Journal of Physics, 1988
The gauge dependence of the static (q2 = 0) characteristics of charged leptons in the framework of the GSW (Glashow–Salam–Weinberg) model was studied. It was found that the anapole moments of leptons are gauge dependent and hence cannot be considered as observables.
P. Christova, M. Zrałek, K. Kołodziej, H. Czyz   +3 more
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The muon magnetic moment and new physics [PDF]

Hyperfine Interactions, 2013
The impact of the muon magnetic moment measurement on physics beyond the Standard Model is briefly reviewed. Particular emphasis is given on the case of supersymmetry. The sensitivity of g − 2 to supersymmetry parameters and the potential for model discrimination and parameter measurements is described. The interplay between LHC data on the Higgs boson,
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Device physics using the method of moments

IEEE Transactions on Education, 1998
The method of moments, which is well known in the area of electromagnetics, can also be applied to the area of device physics in undergraduate education. In this paper, the p-n junction is analyzed using the method of moments applied to discrete charges and distributed charges.
P.V. Schwartz, Karl E. Lonngren, Er-Wei Bai   +2 more
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Dipole moments: A physical-organic experiment

Journal of Chemical Education, 1969
The experiment described here applies dipole moment measurements to a study of the conformation of 2-chlorocyclohexanone.; students are required to estimate the dipole moment of the equatorial and ...
James E. Sturm, Robert D. Rapp
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Problem of distribution moments in statistical physics

Russian Physics Journal, 1997
The statistical possibilities of studying intrasystem processes in multielement systems are determined by solving the problem of the moments of distributions specified in mathematical and physical formulations. The characteristic properties of the distributions can be revealed by analyzing the simple and product moments (integer, fractional, and ...
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Physics of charmed baryons and their magnetic moments

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1996
Abstract The extant quark and soliton model as well as chiral perturbation theory based predictions of the spectra and magnetic moments of the charmed hyperons are described, along with their theoretical foundations in QCD. The differences between the predictions obtained by different methods are emphasized.
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Toroid moments in electrodynamics and solid-state physics

Physics Reports, 1990
The role is explained of toroid moments and average 2n-power radii in the structure of multipole expansions in the framework of Maxwell-Lorentz electrodynamics. A complete scheme of multipole expansions is given in terms of distribution theory. A number of particular applications of toroid moments is considered in condensed-matter physics.
V.V. Tugushev, V.M. Dubovik
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Physical electroweak anapole moment for the neutrino

Physical Review D, 1999
We calculate the neutrino anapole moment in the context of the standard model of the electroweak interactions and we show that this quantity is infinite and gauge dependent in this model. We define the electroweak anapole moment of the neutrino ${a}_{{\ensuremath{\nu}}_{l}}^{\mathrm{EW}}$ through the ${\ensuremath{\nu}}_{l}{l}^{\ensuremath ...
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Just a moment—a modelling exercise for physics

European Journal of Physics, 2006
This paper addresses the seemingly simple concept of turning moments. The approach taken is to set the learning in the context of the action of the biceps brachi or muscle of the upper arm. A simple laboratory exercise can be used to generate data and these data can then be modelled mathematically. Real data, from muscle activity, can then be collected
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The Cyber-Physical Policy Moment

2020
This concluding chapter argues that privacy and security have to take primacy as aspirational values as networks shift from digital only to directly embedded in the physical world. It calls for various stakeholders to urgently take serious cyber-physical policy choices and collectively elevate cybersecurity as a generational imperative necessary for ...
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