Results 51 to 60 of about 2,417 (206)
Hierarchy from baryogenesis [PDF]
Physical Review D, 2006 We study a recently proposed mechanism to solve the hierarchy problem in the context of the landscape, where the solution of the hierarchy problem is connected to the requirement of having baryons in our universe via Electroweak Baryogenesis. The phase transition is triggered by the fermion condensation of a new gauge sector which becomes strong at a ...
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Beyond MSSM baryogenesis [PDF]
Physical Review D, 2008 20 pages, 2 figures; v2: added ...
Blum, Kfir, Nir, Yosef
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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
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Nuclear Physics B - Proceedings Supplements, 1994 A review on the present state of the baryogenesis is given with an emphasis on electroweak baryogenesis. Technical details of the numerous models considered in the literature are not elaborated but unresolved problems of the issue are considered. Different logically possible alternatives of the electroweak scenarios are presented.
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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
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Singlet Fermion Assisted Dominant Seesaw with Lepton Flavor and Number Violations and Leptogenesis
Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017 Embedding type I seesaw in GUTs, left‐right gauge theories, or even in extensions of the SM requires large right‐handed neutrino masses making the neutrino mass generation mechanism inaccessible for direct experimental tests. This has been circumvented by introducing additional textures or high degree of fine‐tuning in the Dirac neutrino or right ...
M. K. Parida +2 more
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Pramana, 2000 15 pages; copy for the arXiv from proceedings of 13th DAE Symposium.
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A Correlation between the Higgs Mass and Dark Matter
Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017 Depending on the value of the Higgs mass, the Standard Model acquires an unstable region at large Higgs field values due to RG running of couplings, which we evaluate at 2‐loop order. For currently favored values of the Higgs mass, this renders the electroweak vacuum only metastable with a long lifetime.
Mark P. Hertzberg +1 more
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Radion induced baryogenesis [PDF]
Physical Review D, 2003 10 pages, 7 figures, minor revisions to conform with PRD ...
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