Results 31 to 40 of about 132 (62)

A predictive and testable unified theory of fermion masses, mixing and leptogenesis

Journal of High Energy Physics, 2022
We consider a minimal non-supersymmetric SO(10) Grand Unified Theory (GUT) model that can reproduce the observed fermionic masses and mixing parameters of the Standard Model.
Bowen Fu, Stephen F. King, Luca Marsili, Silvia Pascoli, Jessica Turner, Ye-Ling Zhou   +5 more
doaj   +1 more source

Second leptogenesis: Unraveling the baryon-lepton asymmetry discrepancy

Journal of High Energy Physics
We propose a novel scenario to explain the matter-antimatter asymmetry by twofold leptogenesis, wherein heavy Majorana neutrinos exhibit temperature-dependent masses and engage in CP-violating decays.
YeolLin ChoeJo, Kazuki Enomoto, Yechan Kim, Hye-Sung Lee   +3 more
doaj   +1 more source

Addressing six standard model problems with Technically Natural Higgs models

Journal of High Energy Physics, 2023
We aim to study the potential of the recently proposed model framework, called Technically Natural Higgs (TNH), in addressing six fundamental problems in particle physics and cosmology.
Martin Rosenlyst
doaj   +1 more source

Common origin of dark matter and leptogenesis in U(1) B−L

Journal of High Energy Physics
In this paper, we investigate the common parameter space of dark matter and leptogenesis in the U(1) B−L symmetry. This model involves a complex scalar ϕ, sterile neutrinos N, and Majorana dark matter χ, where only dark matter χ is charged under the Z 2 ...
Ang Liu, Feng-Lan Shao, Zhi-Long Han, Yi Jin, Honglei Li   +4 more
doaj   +1 more source

Lepton Flavour Violation tests of Type II Seesaw Leptogenesis

Journal of High Energy Physics, 2023
Upcoming Lepton Flavour Violation experiments searching for μ → 3e and μ to e conversion in nuclei processes will provide new opportunities to test the fundamental properties of the neutrino sector, and possibly the origin of matter.
N. D. Barrie, S. T. Petcov
doaj   +1 more source

Baryogenesis via QCD preheating with nonadiabatic baryon chemical potential

Journal of High Energy Physics
The chiral phase transition in QCD can be supercooled in the thermal history of the universe to be instantaneously out-of equilibrium, if QCD is coupled to a dark QCD sector exhibiting the dark chiral phase transition of the first order. In that case the
Jimin Wang, Xin-Ru Wang, Shinya Matsuzaki   +2 more
doaj   +1 more source

Primordial non-Gaussianity as a probe of seesaw and leptogenesis

Journal of High Energy Physics, 2023
We present the possibility that the seesaw mechanism and nonthermal leptogenesis can be investigated via primordial non-Gaussianities in the context of a majoron curvaton model.
Chee Sheng Fong, Anish Ghoshal, Abhishek Naskar, Moinul Hossain Rahat, Shaikh Saad   +4 more
doaj   +1 more source

Leptogenesis in realistic flipped SU(5)

Journal of High Energy Physics
We study thermal leptogenesis in realistic supersymmetric flipped SU(5) × U(1) unification. As up-type quarks and neutrinos are arranged in the same multiplets, they exhibit strong correlations, and it is commonly believed that the masses of right-handed
Stephen F. King, George K. Leontaris, Luca Marsili, Ye-Ling Zhou   +3 more
doaj   +1 more source

Forbidden neutrinogenesis

Journal of High Energy Physics
The origin of neutrino masses can be simply attributed to a new scalar beyond the Standard Model. We demonstrate that leptogenesis can explain the baryon asymmetry of the universe already in such a minimal framework.
Shinya Kanemura, Shao-Ping Li
doaj   +1 more source

Unified origin of curvature perturbation and baryon asymmetry of the universe

Journal of High Energy Physics
We propose a unified framework that describes both the curvaton mechanism for generating primordial density fluctuations and the Affleck-Dine (AD) mechanism for baryogenesis.
Anish Ghoshal, Abhishek Naskar, Nobuchika Okada   +2 more
doaj   +1 more source