Results 61 to 70 of about 3,264 (214)
Two Micron‐Size Dark Dimensions
Fortschritte der Physik, Volume 73, Issue 8, August 2025.Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui +2 more
wiley +1 more source
The Discreet Charm of Higgsino Dark Matter: A Pocket Review
Advances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018 We give a brief review of the current constraints and prospects for detection of higgsino dark matter in low‐scale supersymmetry. In the first part we argue, after performing a survey of all potential dark matter particles in the MSSM, that the (nearly) pure higgsino is the only candidate emerging virtually unscathed from the wealth of observational ...
Kamila Kowalska +2 more
wiley +1 more source
Concepts for Baryogenesis [PDF]
, 2006 The lecture introduces three common scenarios for baryogenesis: (i) GUT-type baryogenesis in the early universe, (ii) baryogenesis through electroweak phase transitions, and (iii) baryogenesis through leptogenesis.
Höcker, A
core
Radion Induced Spontaenous Baryogenesis
, 2007 We describe a possible scenario for the baryogenesis arising when matter is added on the branes of a Randall-Sundrum model with a radion stabilizing potential.
CASADIO, ROBERTO +2 more
core +1 more source
Ultra-relativistic bubbles from the simplest Higgs portal and their cosmological consequences
Journal of High Energy Physics, 2022 We analyze phase transitions in the minimal extension of the SM with a real singlet scalar field. The novelty of our study is that we identify and analyze in detail the region of parameter space where the first order phase transition can occur and in ...
Aleksandr Azatov +4 more
doaj +1 more source
Dark Energy From the Gravitational Wave Background With Scalar Field Dark Matter
Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.ABSTRACT Recent observational results, such as those from pulsar timing arrays (PTA), suggest a low‐frequency Gravitational Wave Background (GWB) permeates our universe. This opens the possibility that gravitational waves could span a broader spectrum, potentially impacting cosmological scales.
Edwin L. Pérez‐Ochoa, Tonatiuh Matos
wiley +1 more source
Advances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018 Decaying vacuum cosmological models evolving smoothly between two extreme (very early and late time) de Sitter phases are able to solve or at least to alleviate some cosmological puzzles; among them we have (i) the singularity, (ii) horizon, (iii) graceful‐exit from inflation, and (iv) the baryogenesis problem.
G. J. M. Zilioti +3 more
wiley +1 more source
, 2011 We summarize the state of the art of baryogenesis with particular attention to thermal leptogenesis, according to which the baryon asymmetry in the Universe is produced at very high temperatures from the decay of heavy righ-handed neutrinos, and to ...
Riotto, Antonio, Antonio Riotto
core +1 more source
Gravitational baryogenesis in DGP brane cosmology
European Physical Journal C: Particles and Fields, 2018 We consider the imbalance of matter and antimatter by using a gravitational baryogenesis mechanism in the background of Dvali–Gabadadze–Porrati (DGP) brane cosmology.
K. Atazadeh
doaj +1 more source
Higgs Information and NMSSM at the Large Hadron Collider
Advances in High Energy Physics, Volume 2024, Issue 1, 2024.Information theory has proven to be a worthwhile tool for investigating the implications of the Higgs sector in the Next‐to‐Minimal Supersymmetric Standard Model (NMSSM) using Higgs information at the Large Hadron Collider (LHC) assessed through the entropy constructed by means of the branching ratios of decay channels of the Higgs boson.
Surabhi Gupta +2 more
wiley +1 more source