Results 71 to 80 of about 691 (101)

Primordial Gravitational Waves Measurements and Anisotropies of CMB Polarization Rotation

open access: yes, 2015
Searching for the signal of primordial gravitational waves in the B-modes (BB) power spectrum is one of the key scientific aims of the cosmic microwave background (CMB) polarization experiments.
Li, Hong   +4 more
core   +2 more sources

Electroweak symmetry non-restoration and suppressed dark radiation in supersymmetric Twin Higgs model

open access: yesJournal of High Energy Physics
We investigate a possibility of electroweak symmetry non-restoration (SNR) below the Twin electroweak scale (~ TeV) within the Twin Higgs model. We focus on supersymmetric extensions with light sfermions where SNR is driven by mirror symmetry breaking in
Marcin Badziak   +2 more
doaj   +1 more source

Neutralino Dark Matter from MSSM Flat Directions in light of WMAP Result

open access: yes, 2003
The minimal supersymmetric standard model (MSSM) has a truly supersymmetric way to explain both the baryon asymmetry and cold dark matter in the present Universe, that is, ``Affleck-Dine baryo/DM-genesis.'' The associated late-time decay of Q-balls ...
A. Bottino   +92 more
core   +2 more sources

Non-thermal WIMP baryogenesis

open access: yes, 2018
We propose a WIMP baryogensis achieved by the annihilation of non-thermally produced WIMPs from decay of heavy particles, which can result in low reheating temerature.
Choi, Ki-Young   +2 more
core   +1 more source

Bridging the μHz gap in the gravitational-wave landscape: unveiling dark baryons

open access: yesJournal of High Energy Physics
We study gravitational waves (GWs) with frequencies in the μHz range, which arise from phase transitions related to dark confinement in the context of dark versions of Quantum Chromodynamics.
Martin Rosenlyst
doaj   +1 more source

Purely flavored leptogenesis from a sudden mass gain of right-handed neutrinos

open access: yesJournal of High Energy Physics
In this paper, we would like to point out that in the scenario that the right-handed neutrinos suddenly gain some masses much larger than the temperature of the Universe at that time so that the washout effects for the lepton asymmetry generated from ...
Zhen-hua Zhao, Jing Zhang, Xiang-Yi Wu
doaj   +1 more source

Minimal seesaw and leptogenesis with the smallest modular finite group

open access: yesJournal of High Energy Physics
We propose a model for leptons based on the smallest modular finite group Γ2 ≅ S 3 that, for the first time, accounts for both the hints of large low-energy CP-violation in the lepton sector and the matter-antimatter asymmetry of the Universe, generated ...
Simone Marciano   +2 more
doaj   +1 more source

Neutrino reheating predictions with non-thermal leptogenesis

open access: yesJournal of High Energy Physics
Connecting inflation with neutrino physics through non-thermal leptogenesis via direct inflaton-right-handed neutrino (RHN) coupling naturally incorporates neutrino reheating, leaving no ambiguity regarding the early history of the universe. In ref. [1],
Xinyi Zhang
doaj   +1 more source

Leptogenesis in five-dimensional asymptotic grand unification models

open access: yesJournal of High Energy Physics
Asymptotic grand unification models can be constructed in five dimensions compactified on an orbifold. We demonstrate that the parameter space of such models admit solutions that naturally achieve the baryon asymmetry via leptogenesis, these solutions ...
Timothé Alezraa   +2 more
doaj   +1 more source

Physics at the [Formula: see text] linear collider. [PDF]

open access: yesEur Phys J C Part Fields, 2015
Moortgat-Pick G   +73 more
europepmc   +1 more source

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