Relationship of Flux Quantization to Charge Quantization and the Electromagnetic Coupling Constant

1971 ◽  
Vol 3 (2) ◽  
pp. 306-345 ◽  
Author(s):  
Herbert Jehle
Keyword(s):  
Electromagnetic Coupling ◽  
Coupling Constant ◽  
Charge Quantization ◽  
Flux Quantization ◽  
Relationship Of

scholarly journals On the running electromagnetic coupling constant at $M_Z$

1999 ◽  
Vol 9 (4) ◽  
pp. 551-556 ◽  
Author(s):  
J.G. Körner ◽  
A.A. Pivovarov ◽  
K. Schilcher
Keyword(s):  
Electromagnetic Coupling ◽  
Coupling Constant

scholarly journals Thermodynamics of Charged Rotating Dilaton Black Branes Coupled to Logarithmic Nonlinear Electrodynamics

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
A. Sheykhi ◽  
M. H. Dehghani ◽  
M. Kord Zangeneh
Keyword(s):  
Thermal Stability ◽  
Electromagnetic Coupling ◽  
Nonlinear Electrodynamics ◽  
Black Brane ◽  
Dilaton Field ◽  
Coupling Constant ◽  
De Sitter ◽  
New Class ◽  
Unstable Phase ◽  
Complete Set

We construct a new class of charged rotating black brane solutions in the presence of logarithmic nonlinear electrodynamics with complete set of the rotation parameters in arbitrary dimensions. The topology of the horizon of these rotating black branes is flat, while due to the presence of the dilaton field the asymptotic behavior of them is neither flat nor (anti-)de Sitter [(A)dS]. We investigate the physical properties of the solutions. The mass and angular momentum of the spacetime are obtained by using the counterterm method inspired by AdS/CFT correspondence. We derive temperature, electric potential, and entropy associated with the horizon and check the validity of the first law of thermodynamics on the black brane horizon. We study thermal stability of the solutions in both canonical and grand-canonical ensemble and disclose the effects of the rotation parameter, nonlinearity of electrodynamics, and dilaton field on the thermal stability conditions. We find the solutions are thermally stable forα<1, while forα>1the solutions may encounter an unstable phase, whereαis dilaton-electromagnetic coupling constant.

NUMERICAL ANALYSIS OF GUTs PREDICTIONS IN THE LIGHT OF RECENT RESULTS FROM LEP

1992 ◽  
Vol 07 (35) ◽  
pp. 3319-3330
Author(s):  
DARIUSZ GRECH
Keyword(s):  
Z Boson ◽  
Electromagnetic Coupling ◽  
Boson Mass ◽  
Threshold Effects ◽  
Coupling Constant ◽  
Central Values ◽  
Unified Theories ◽  
Proton Lifetime ◽  
Experimental Values ◽  
Best Fit

We find numerical best fit for sin 2 Θw(MZ), unifying mass MX and the proton lifetime τp as the outcome of analysis where experimental values of Z boson mass MZ, strong coupling constant αs(MZ) and electromagnetic coupling α0(MZ) are taken as the only input parameters. It is found that simple nonsupersymmetric models are unlikely to be realistic ones. On the other hand, we find the best numerical fit: sin 2Θw(MZ = 0.2330 ± 0.0007 (theor.) ± 0.0027 (exp.) , [Formula: see text] yr for supersymmetric unified theories with three generations. The central values require, however, that the supersymmetric mass Λs≲300 GeV . Possibilities of increasing this limit as well as cases with four generations and threshold effects are also discussed. Compact formulas for theoretical and experimental uncertainties involved in the analysis are also produced.

High energy muon interactions - C.E.R.N. work on weak interactions

1965 ◽  
Vol 285 (1401) ◽  
pp. 248-256 ◽  
Keyword(s):  
Weak Interactions ◽  
Electromagnetic Coupling ◽  
High Energy ◽  
Nucleon Mass ◽  
Coupling Constant ◽  
Anomalous Effect ◽  
Intermediate Boson ◽  
High Energies ◽  
High Energy Muon ◽  
Made In

What I have to say will consist largely of speculation, because no unusual feature of muon interactions at high energies has yet been established. Considerable efforts have been made in the last few years to find an anomalous effect, but so far the result has been negative. This is probably because we have not yet reached high enough energies, as will become evident during the course of this talk. Figure 19 shows a number of possible interactions of the muon, which will be considered in detail below. There is first the electromagnetic coupling to the photon, with coupling constant e satisfying e 2 = 1/137 (figure 19( a )). Figure 19( b ) shows the weak interaction coupling, to the intermediate boson W ± (which is here assumed to exist). To obtain the correct strength for the overall weak four-fermion interaction one requires g 2 / m 2 w = G weak = 10 -5 / m 2 N , where m N is the nucleon mass. Thus only the ratio of g 2 to m 2 w is fixed.

On the running electromagnetic coupling constant at

1999 ◽  
Vol 9 (4) ◽  
pp. 551 ◽  
Author(s):  
J.G. Körner ◽  
A.A. Pivovarov ◽  
K. Schilcher
Keyword(s):  
Electromagnetic Coupling ◽  
Coupling Constant

scholarly journals Constraining the existence of magnetic monopoles by Dirac-dual electric charge renormalization effect under the Planck scale limit

2016 ◽  
Vol 31 (24) ◽  
pp. 1650133
Author(s):  
Yanbin Deng ◽  
Changyu Huang ◽  
Yong-Chang Huang
Keyword(s):  
Electric Charge ◽  
Magnetic Charge ◽  
Planck Scale ◽  
Magnetic Monopoles ◽  
Energy Scale ◽  
Group Equation ◽  
Coupling Constant ◽  
Electric Coupling ◽  
Charge Quantization ◽  
Planck Energy

It was suggested by dimensional analysis that there exists a limit called the Planck energy scale coming close to which the gravitational effects of physical processes would inflate and struggle for equal rights so as to spoil the validity of pure nongravitational physical theories that governed well below the Planck energy. Near the Planck scale, the Planck charges, Planck currents, or Planck parameters can be defined and assigned to physical quantities such as the single particle electric charge and magnetic charge as the ceiling value obeyed by the low energy ordinary physics. The Dirac electric-magnetic charge quantization relation as one form of electric-magnetic duality dictates that, the present low value electric charge corresponds to a huge magnetic charge value already passed the Planck limit so as to render theories of magnetic monopoles into the strong coupling regime, and vice versa, that small and tractable magnetic charge values correspond to huge electric charge values. It suggests that for theoretic models in which the renormalization group equation provides rapid growth for the running electric coupling constant, it is easier for the dual magnetic monopoles to emerge at lower energy scales. Allowing charges to vary with the Dirac electric-magnetic charge quantization relation while keeping values under the Planck limit informs that the magnetic charge value drops below the Planck ceiling value into the manageable region when the electric coupling constant grows to one fourth at a model dependent energy scale, and continues dropping toward half the value of the Planck magnetic charge as the electric coupling constant continues growing at the model dependent rate toward one near Planck energy scale.

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