scholarly journals Response of primordial abundances to a general modification ofGNand/or of the early universe expansion rate

2005 ◽  
Vol 71 (12) ◽  
Author(s):  
C. Bambi ◽  
M. Giannotti ◽  
F. L. Villante
2017 ◽  
Vol 32 (34) ◽  
pp. 1750187 ◽  
Author(s):  
D. P. Kirilova ◽  
V. M. Chizhov

In this work, an update of the cosmological role and place of the chiral tensor particles in the Universe history is provided. We discuss an extended model with chiral tensor particles. The influence of these particles on the early Universe evolution is studied. Namely, the increase of the Universe expansion rate caused by the additional particles in this extended model is calculated, their characteristic interactions with the particles of the hot Universe plasma are studied and the corresponding times of their creation, scattering, annihilation and decay are estimated for accepted values of their masses and couplings, based on the recent experimental constraints. The period of abundant presence of these particles in the Universe evolution is determined.


2015 ◽  
Vol 12 (09) ◽  
pp. 1550097 ◽  
Author(s):  
Yuriy A. Portnov

This paper considers the dependence of the Universe expansion rate in the era of radiation domination of the orbital angular momentum of photons filling the Universe. It is shown that the presence of a nonzero orbital angular momentum in photons leads to increase in the rate of expansion. As a consequence, the hypothesis is made that areas of the Universe, having photons with nonzero orbital angular momentum inside them, will cool faster. In these areas the elementary particles will form earlier, compared to the rest of the Universe. Therefore, these areas become the future centers of the primary material inhomogeneity.


2021 ◽  
Vol 133 (6) ◽  
pp. 69002
Author(s):  
Edésio M. Barboza ◽  
Everton M. C. Abreu ◽  
Jorge Ananias Neto

1989 ◽  
Vol 159 (10) ◽  
pp. 393
Author(s):  
Ya.A. Smorodinskii
Keyword(s):  

2011 ◽  
Vol 193 (1) ◽  
pp. 7 ◽  
Author(s):  
Carla M. Coppola ◽  
Savino Longo ◽  
Mario Capitelli ◽  
Francesco Palla ◽  
Daniele Galli

Sign in / Sign up

Export Citation Format

Share Document