Cosmology and elementary particles, or celestial mysteries

Dolgov, A. D.

doi:10.1134/s1063779612030033

Cited by 5 publications

(2 citation statements)

References 60 publications

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“…However the three neutrinos can built a new straight line segment, which could be extended to some sterile neutrinos. It was noticed by Dolgov [36] that warm sterile neutrinos with a mass in the kev range are the most popular candidate for the sake of dark matter particles.…”

Section: Resultsmentioning

confidence: 99%

What do fractals learn us concerning the masses of fundamental particles, of hadrons, and of nuclei? Concerning also disintegration life-times?

Tatischeff¹

2013

Proceedings of XXI International Baldin Seminar on High Energy Physics Problems — PoS(Baldin ISHEPP XXI)

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The hadron spectroscopy is studied through the use of fractals and discrete scale invariance (DSI) implying log-periodic corrections to continuous scaling. The masses of mesons and baryons, reported by the Particle Data Group (PDG), agree with (DSI), as well as the masses of exotic narrow mesons, baryons, and dibaryons. Two distributions are systematically studied: first the log of the masses versus the log of their rank, and also the successive mass ratios. Each fitted parameter of the second distributions, as a function of the hadronic masses, displays the same shape for all PDG hadronic families and species. The same parameters allow good fits for the narrow exotic mesons, baryons and dibaryons. When the successive mass ratios between different baryon families are constant, this property is not observed between different meson families. Such observation is studied within the double mass ratios eliminating the quark masses, but the difference between baryons and mesons is not understood. The fractal properties and discrete scale invariance model are also used to study nuclei yrast masses as well as excited nuclei level masses of some nuclei. Here also the good agreement between data and fractal property, allows to make some predictions for still unobserved nuclei masses. Fractal properties are also compared to several nuclei data such as : -atomic masses in several columns of the Mendeleev periodic table of elements, -masses of series following β + or β − disintegrations, -one and two nucleon separation energies, -half-lives of some isotopes, -the four radioactive family periods.Finally, it is shown that the lepton, hadron, and boson masses can be presented in the same frame. This is also partially true for the coupling constants.

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Section: Resultsmentioning

confidence: 99%

What do fractals learn us concerning the masses of fundamental particles, of hadrons, and of nuclei? Concerning also disintegration life-times?

Tatischeff¹

2013

Proceedings of XXI International Baldin Seminar on High Energy Physics Problems — PoS(Baldin ISHEPP XXI)

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“…This is resent observations of supernova of type Ia (SNe Ia) [1,2,3,4,5], more recent cosmic microwave background radiation (CMBR) data [6,7,8], clusters of galaxies [9], etc. This has been designed as "dark energy" effect known long before (which practically could be known starting from papers [10,11] of Einstein introduced the cosmological Λ term, see also [12]) and related presence of "dark matter" (see [13,14], also [15,16] for details). In order to explain this phenomenon, different approaches in cosmology have been intensively developed.…”

Section: Introductionmentioning

confidence: 99%

Quantum dynamics of early Universe

Maydanyuk

2014

Preprint

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In order to study quantum dynamics of the FRW-universe of closed type, definitions of velocity, Hubble function and duration of the evolved universe are introduced into cosmology. The proposed definitions are characterized by high stability of calculations and easy for use. The introduced characteristics are supported by calculations of wave function in the fully quantum (non-semiclassical) approach. We achieve high precision agreement between the classical and quantum calculations after the formation of Universe with classical spacetime (i.e. Big Bang). Such an agreement confirms efficiency of the proposed definitions, and classical-quantum correspondence allows to obtain quantum information before Big Bang, to study dynamics of evolution of universe in the first stage and later times.

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Reconstruction procedure in nonlocal cosmological models

Elizalde

Pozdeeva

Vernov

2013

Class. Quantum Grav.

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A nonlocal gravity model is considered which does not assume the existence of a new dimensional parameter in the action and includes a function f (✷ −1 R), with ✷ the d'Alembertian operator. Using a reconstruction procedure for the local scalar-tensor formulation of this model, a function f is obtained for which the model exhibits power-law solutions with the Hubble parameter H = n/t, for any value of the constant n. For generic n-namely except for a few special values which are characterized and also specifically studied-the corresponding function f is a sum of exponential functions. Corresponding power-law solutions are found explicitly. Also the case is solved in all detail of a function f such that the model contains both de Sitter and power-law solutions. *

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Cosmology and elementary particles, or celestial mysteries

Cited by 5 publications

References 60 publications

What do fractals learn us concerning the masses of fundamental particles, of hadrons, and of nuclei? Concerning also disintegration life-times?

What do fractals learn us concerning the masses of fundamental particles, of hadrons, and of nuclei? Concerning also disintegration life-times?

Quantum dynamics of early Universe

Reconstruction procedure in nonlocal cosmological models

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