Search arXiv⌕ Search
Home/Archive/arXiv

arXiv · 0708.2551

Comments on Possible Variation of the Universal Constants

A. D. Law·J. Dunning-Davies
View original source ↗Read source document ↗Export metadata ↓

Abstract

Discussion of the constancy, or otherwise, of the various so-called universal constants which abound in physics has continued for many years. However, relatively recent observations, which appear to indicate a variation in the value of the fine structure constant, have reignited the subject. These observations relate to quasars and that in itself raises questions. Also, since many of the arguments utilise the Bekenstein-Hawking expression for the entropy of a black hole, further controversy is introduced into the discussion immediately. In what follows these two points will be examined and some less well-known theoretical considerations introduced which, hopefully, will instigate wider examination of this topic.

Explore related subjects

physics.gen-ph

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

A. D. Law, J. Dunning-Davies. 2007-08-19. Comments on Possible Variation of the Universal Constants. https://arxiv.org/abs/0708.2551

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

arXiv2026

Is the acceleration scale of the radial acceleration relation tracking the cosmic expansion rate?

The MUSE-DARK survey has reported a highly significant increase of the radial acceleration relation (RAR) scale $a_0$ with redshift over $0.33<z<1.44$, parametrized linearly and described by its authors as phenomenological. We confront the same binned measurements with physically motivated scalings, using the continuous family $a_0(z)=A(1+z)^γ$ as the primary statistic. We find $γ=0.78\pm0.15$ (statistical, plotted uncertainties read as $1σ$): a redshift-independent scale ($γ=0$) is excluded at $5.3σ$ by a nested test, and the matter-density scaling ($γ=3/2$) at $4.8σ$. Hubble tracking, $a_0(z)\propto H(z)$, with effective exponent $γ\simeq1.10$, is consistent with the measurement within $2.1σ$ and is the information-criterion-preferred one-parameter description; its amplitude, $A=(1.40\pm0.03)\times10^{-10}$ m s$^{-2}$, lies 17 per cent above the canonical SPARC value, within the latter's systematic-dominated uncertainty. The survey's remark that the evolution is 'faster than $H(z)$' is shown to be anchor-dependent: relative to a floating amplitude the binned growth is, if anything, mildly shallower than $H(z)$. All exponent-based conclusions are invariant under redshift-independent rescalings of $a_0$, and hence robust to common-mode stellar-mass systematics. At current precision, the long-noted coincidence $a_0\sim cH_0$ survives its first confrontation with direct kinematic measurements at intermediate redshift.

physics.gen-ph↗
arXiv2026

Joss-Weinberg covariant field with mass and spin $\frac{3}{2}$

We present the explicit theory of the Joss-Weinberg covariant field with spin $\frac{3}{2}$ which is a eight-dimensional massive covariant field transforming according to the representation $(\frac{3}{2},0)\oplus(0, \frac{3}{2})$ of the group $SL(2,\mathbb{C})$. As the transformation matrices of this representation are still unknown, we apply a new method for deriving them using exclusively maximally reducible representations, e. g. $(1,0)\otimes(\frac{1}{2},0)$ instead of the irreducible one $(1,\frac{1}{2})=(1,0)\otimes(0,\frac{1}{2})$ we meet in usual frameworks. After applying this method, we obtain a $12$-component covariant field transforming according to the representation $[(1,0)\otimes(\frac{1}{2},0)]\oplus [(0,1)\otimes(0, \frac{1}{2})]$ which is maximally reducible, up to subspaces of irreducible representations of the $SU(2)$ group. Consequently, after developing the theory in the direct product basis of the representation $(1,0)\otimes(\frac{1}{2},0)$, we can separate the sector of spin half revealing thus the genuine Joss-Weinberg covariant field of spin $\frac{3}{2}$, transforming according to the representation $(\frac{3}{2},0)\oplus(0, \frac{3}{2})$. In this manner the theory of Joss-Weinberg covariant field of spin $\frac{3}{2}$ can be build naturally deriving the field equation and associated matrices, Lagrangian formalism, inner product and the closed expressions of the orthonormal mode spinors.

physics.gen-ph↗
arXiv2026

Summary of the theory of noncontractible physical space

There are a plenty of phenomenological, mathematical and philosophical reasons to modify or generalize our currently accepted theories in particle physics, cosmology and gravity. I give a comprehensive list of anomalies, puzzles and problems in the field of particle physics, cosmology and gravity that is the essential motivation for the curiosity driven research. The critiques of the Higgs mechanism, inflationary mechanism, instantons, sphalerons, gravity waves and the Hawking radiation are given in details. I introduce the minimal distance (UV cut-off) to resolve the UV singularity problem in quantum field theory of particle physics, minimal distance in quantum mechanics and in the nonsingular Einstein-Cartan theory of gravity relevant in cosmology. The universality of the minimal distance can be and should be checked within particle physics, astrophysics and cosmology. The dark matter problem, the dark energy problem, light neutrino masses and mixing, cosmic rays muon puzzle, B meson anomalies, Tevatron t-quark charge asymmetry, W boson mass anomaly, lepton and baryon number violations, chirality of the vorticity of the Universe, kinematic dipole anomaly, etc., all have unique and clear solutions within my theory. The dimensionality of spacetime and a perfect balance between the translational and rotational degrees of freedom in Minkowski and Riemann-Cartan spacetimes are the crucial ingredients in my reasoning.

physics.gen-ph↗