Results 81 to 90 of about 3,264 (214)

Bounds from D/H on baryogenesis models

Journal of High Energy Physics
We review the constraints on baryon inhomogeneities derived from measurements of the deuterium abundance, D/H, and apply them to a range of baryogenesis models.
Aleksandr Azatov, Bruno Missoni
doaj   +1 more source

Electroweak baryogenesis

New Journal of Physics, 2012
Electroweak baryogenesis (EWBG) remains a theoretically attractive and experimentally testable scenario for explaining the cosmic baryon asymmetry. We review recent progress in computations of the baryon asymmetry within this framework and discuss their ...
David E Morrissey, Michael J Ramsey-Musolf   +1 more
doaj   +1 more source

B−L conserved baryogenesis [PDF]

, 2008
In the presence of anomaly induced sphaleron process, only a B−L asymmetry can be partially converted to the baryon asymmetry while any B+L asymmetry would be completely erased.
Sarkar, Utpal, Gu, Pei-Hong
core   +1 more source

Inverse electroweak baryogenesis

Journal of High Energy Physics
We propose a mechanism for baryogenesis in which the baryon asymmetry is generated as an equilibrium response of weak sphalerons in a region where electroweak sphaleron transitions remain unsuppressed, h/T ≲ 1. A nonzero equilibrium baryon density arises
Jacopo Azzola, Oleksii Matsedonskyi, Andreas Weiler   +2 more
doaj   +1 more source

Inflationary birefringence and baryogenesis [PDF]

International Journal of Modern Physics D, 2016
A decade ago, the first leptogenesis model based on inflation was proposed, where the complex phase of the inflaton field carries lepton number [S. H. S. Alexander, M. E. Peskin and M. M. Sheikh-Jabbari, Phys. Rev. Lett. 96 (2006) 081301, arXiv:hep-th/0403069 ].
openaire   +2 more sources

Electroweak baryogenesis in the nMSSM

, 2007
In this talk, electroweak baryogenesis in the nMSSM is discussed following Ref [1]. We focus on differences compared to the MSSM. We conclude that electroweak baryogenesis in the nMSSM is rather generic.
T. Konstandin, Konstandin, Thomas,
core   +1 more source

Comment on “Spontaneous baryosynthesis with large initial phase”

Nuclear Physics B
Recently https://arxiv.org/pdf/2512.11011 set out to improve on previous work from 1994 by Dolgov and Freese, who used a small-angle approximation to derive the yield of spontaneous baryogenesis from a rolling phase, a pseudo-Nambu-Goldstone boson ...
James M. Cline
doaj   +1 more source

Gravitational waves from the first order electroweak phase transition in the Z3 symmetric singlet scalar model*

EPJ Web of Conferences, 2018
Among various scenarios of baryon asymmetry of the Universe, electroweak baryogenesis is directly connected with physics of the Higgs sector. We discuss spectra of gravitational waves which are originated by the strongly first order phase transition at ...
Matsui Toshinori
doaj   +1 more source

Affleck–Dine baryogenesis via mass splitting

Physics Letters B, 2019
We introduce a class of non-supersymmetric models explaining baryogenesis a la Affleck–Dine, which use a decay of two superheavy scalar fields with close masses.
Eugeny Babichev, Dmitry Gorbunov, Sabir Ramazanov   +2 more
doaj   +1 more source

Supersymmetric Electroweak Baryogenesis in the WKB Approximation

, 1997
We calculate the baryon asymmetry generated at the electroweak phase transition in the minimal supersymmetric standard model, treating the particles in a WKB approximation in the bubble wall background.
Kimmo Kainulainen, James M. Cline, Michael Joyce, Supersymmetric Electroweak Baryogenesis   +3 more
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