Results 21 to 30 of about 22,084 (265)

Signals from the Early Universe: Black Holes, Gravitational Waves and Particle Physics

, 2022
263 pages.
openaire   +4 more sources

Signatures of bulk neutrinos in the early Universe [PDF]

Physical Review D
Neutrino masses and quantum gravity are strong reasons to extend the standard model of particle physics. A large extra dimension can be motivated by quantum gravity and can explain the small neutrino masses with new singlet states that propagate in the ...
D. McKeen, John N. Ng, M. Shamma
semanticscholar   +1 more source

Doubly peaked induced stochastic gravitational wave background: testing baryogenesis from primordial black holes

Journal of High Energy Physics, 2022
Hawking evaporation of primordial black holes (PBHs) can facilitate the generation of matter-antimatter asymmetry. We focus on ultra-low mass PBHs that briefly dominate the universe and evaporate before the big bang nucleosynthesis.
Nilanjandev Bhaumik, Anish Ghoshal, Marek Lewicki   +2 more
doaj   +1 more source

Inflation, electroweak phase transition, and Higgs searches at the LHC in the two-Higgs-doublet model

Journal of High Energy Physics, 2022
Combining the Higgs searches at the LHC, we study the Higgs inflation in the type-I and type-II two-Higgs-doublet models with non-minimally couplings to gravity.
Lei Wang
doaj   +1 more source

Axion inflation in the strong-backreaction regime: decay of the Anber-Sorbo solution

Journal of High Energy Physics, 2023
Axion inflation coupled to Abelian gauge fields via a Chern-Simons-like term of the form ϕF F ~ $$ \phi F\overset{\sim }{F} $$ represents an attractive inflationary model with a rich phenomenology, including the production of magnetic fields, black holes,
Richard von Eckardstein, Marco Peloso, Kai Schmitz, Oleksandr Sobol, Lorenzo Sorbo   +4 more
doaj   +1 more source

Chemical evolution of antimatter domains in early Universe [PDF]

According to modern physics, our Universe is baryon-asymmetric. That phenomenon can not be described in the frameworks of the Standard Model of particle physics. Globally, the Universe consists of baryon matter.
Maxim Krasnov, M. Khlopov, Ufuk Aydemir
semanticscholar   +1 more source

Tying Knots in Particle Physics. [PDF]

Physical Review Letters
Knots emerge in various fields of mathematics and physics today. We show that knots indeed appear as stable solitons in a realistic extension of the standard model of particle physics that provides the QCD axion and right-handed neutrinos.
M. Eto, Yu Hamada, Muneto Nitta
semanticscholar   +1 more source

F(R) gravity in the early Universe: electroweak phase transition and chameleon mechanism [PDF]

Chinese Physics C, High Energy Physics & Nuclear Physics, 2018
It is widely believed that the screening mechanism is an essential feature for the modified gravity theory. Although this mechanism has been examined thoroughly in the past decade, their analyses are based on a conventional fluid prescription for the ...
T. Katsuragawa, S. Matsuzaki, E. Senaha
semanticscholar   +1 more source

Cosmological Phase Transitions: From Particle Physics to Gravitational Waves, Semi-Analytically [PDF]

Highlights in High-Energy Physics
Motivated by the recent evidence of a stochastic gravitational wave background found by pulsar timing array experiments, we focus on one of the prime cosmological explanations, i.e., a supercooled first order phase transition.
S. Rosauro-Alcaraz, S. Pascoli, Matteo Zandi   +2 more
semanticscholar   +1 more source

Scalar induced resonant sterile neutrino production in the early Universe [PDF]

, 2019
It has been recently suggested \cite{Bezrukov:2017ike,Bezrukov:2018wvd} that a cosmic scalar field can completely change the keV-scale sterile neutrino production in the early Universe.
Fedor Bezrukov, A. Chudaykin, D. Gorbunov   +2 more
semanticscholar   +1 more source