scholarly journals About the Role of the Higgs Boson in the Evolution of the Early Universe

2014 ◽  
Vol 45 (7) ◽  
pp. 1393 ◽  
Author(s):  
F. Jegerlehner
Keyword(s):  
Universe ◽  
2020 ◽  
Vol 6 (10) ◽  
pp. 188
Author(s):  
Andrey A. Grib ◽  
Yuri V. Pavlov

The number of superheavy particles with the mass of the Grand Unification scale with trans-Planckian energy created at the epoch of superheavy particle creation from the vacuum by the gravitation of the expanding Universe is calculated. In later collisions of these particles, gravitational radiation is radiated playing the role of bremsstrahlung for gravity. The effective background radiation of the Universe is evaluated.


2020 ◽  
Vol 29 (12) ◽  
pp. 2050087
Author(s):  
Gargee Chakraborty ◽  
Surajit Chattopadhyay

Motivated by the work of Nojiri et al., Phys. Lett. B 797, 134829 (2019), the present study demonstrates inflation driven by holographic DBI-essence scalar field. Considering a simple correction due to the Ultraviolet cutoff, we have studied the slow-roll parameters. It has been observed that the role of the UV-cutoff is not negligible and in the limiting case of [Formula: see text] the inflationary model is characterized by Type-III singularity but can avoid Big-Rip singularity. Finally, it has been observed that the trajectories in [Formula: see text] are compatible with the observational bound found by Planck. It has been concluded that the tensor to scalar ratio for this model can explain the primordial fluctuation in the early universe as well. However, under the purview of [Formula: see text] inflation, although the DBI-essence scalar field can explain primordial fluctuation, the holographic DBI-essence scalar field does not lead to [Formula: see text] trajectory satisfying the Planck’s observational bound.


2011 ◽  
Vol 22 (2) ◽  
pp. 119-123 ◽  
Author(s):  
Savino Longo ◽  
Carla Maria Coppola ◽  
Daniele Galli ◽  
Francesco Palla ◽  
Mario Capitelli

2013 ◽  
Vol 87 (7) ◽  
Author(s):  
Ninetta Saviano ◽  
Alessandro Mirizzi ◽  
Ofelia Pisanti ◽  
Pasquale Dario Serpico ◽  
Gianpiero Mangano ◽  
...  

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