English
Related papers

Related papers: Affleck-Dine dynamics and the dark sector of pange…

200 papers

The similarity of the visible and dark matter abundances indicates that they may originate via the same mechanism. If both the dark and the visible matter are charged under a generalized baryon number which remains always conserved, then…

High Energy Physics - Phenomenology · Physics 2011-12-09 Nicole F. Bell , Kalliopi Petraki , Ian M. Shoemaker , Raymond R. Volkas

We consider the Affleck-Dine baryogenesis comprehensively in the minimal supersymmetric standard model with gauge-mediated supersymmetry breaking. Considering the high temperature effects, we see that the Affleck-Dine field is naturally…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Kasuya

We conducted an investigation into Affleck-Dine baryogenesis within the context of D-term inflation, specifically focusing on its relationship with a recent reheating formalism. It was found that by considering a specific reheating…

High Energy Physics - Phenomenology · Physics 2023-07-31 K. El Bourakadi , M. Ferricha-Alami , Z. Sakhi , M. Bennai , H. Chakir

The observed baryon and dark matter densities are equal up to a factor of 5. This observation indicates that the baryon asymmetry and dark matter have the same origin. The Affleck-Dine baryogenesis is one of the most promising mechanisms in…

High Energy Physics - Phenomenology · Physics 2015-06-12 Ayuki Kamada , Masahiro Kawasaki , Masaki Yamada

Affleck-Dine baryogenesis in models where the gravitino is both the lightest supersymmetric particle and the dark matter candidate is investigated. For a high enough reheating temperature to produce sufficient gravitinos by thermal…

High Energy Physics - Phenomenology · Physics 2009-11-11 Osamu Seto

We propose a mechanism for cogenesis of baryon and dark matter (DM) in the universe via the Affleck-Dine (AD) route. An AD field which breaks the lepton number symmetry, leads to the generation of lepton asymmetry by virtue of its cosmic…

High Energy Physics - Phenomenology · Physics 2023-05-24 Debasish Borah , Suruj Jyoti Das , Nobuchika Okada

The similar mass densities observed for visible and dark matter in the present-day universe suggest a common origin for both. A scheme called "pangenesis" for realising this using the Affleck-Dine mechanism in a baryon-symmetric universe is…

High Energy Physics - Phenomenology · Physics 2015-06-04 Raymond R. Volkas

We study the cosmology of supersymmetric models in which the supersymmetry breaking effects are mediated by gauge interactions at about the 10^5 GeV scale. We first point out that the gravitino is likely to overclose the Universe in this…

High Energy Physics - Phenomenology · Physics 2009-09-29 Andre de Gouvea , Takeo Moroi , Hitoshi Murayama

We propose a novel framework in which the observed baryon and dark matter abundances are simultaneously generated via the Affleck-Dine mechanism. In its simplest realization, Affleck-Dine cogenesis is accomplished by a single superpotential…

High Energy Physics - Phenomenology · Physics 2012-04-13 Clifford Cheung , Kathryn M. Zurek

We consider the Affleck-Dine baryogenesis comprehensively in the minimal supersymmetric standard model with gauge-mediated supersymmetry breaking. Considering the high temperature effects, we see that the Affleck-Dine field is naturally…

High Energy Physics - Phenomenology · Physics 2009-11-07 S. Kasuya , M. Kawasaki

We highlight that the observed concurrence between the baryon and dark matter relic densities can be explained via a parametric coincidence between two distinct production mechanisms: Affleck-Dine baryogenesis and dark matter UV freeze-in.…

High Energy Physics - Phenomenology · Physics 2025-11-05 Jae Hyeok Chang , Chang Sub Shin , James Unwin

We propose a scenario that explains the comparable abundances of dark matter (DM) and baryons without any coincidence in the corresponding particle masses. Here, DM corresponds to heavy "dark baryons" in a hidden MSSM-like dark sector,…

High Energy Physics - Phenomenology · Physics 2022-11-21 João G. Rosa , Duarte M. C. Silva

We investigate whether the baryon asymmetry of the universe is explained in the framework of the supersymmetric extension of the Standard Model with R-parity violating interactions. It is shown that the Affleck-Dine mechanism naturally…

High Energy Physics - Phenomenology · Physics 2014-08-05 Tetsutaro Higaki , Kazunori Nakayama , Ken'ichi Saikawa , Tomo Takahashi , Masahide Yamaguchi

Supersymmetric models predict a natural dark-matter candidate, stable baryonic Q-balls. They could be copiously produced in the early Universe as a by-product of the Affleck-Dine baryogenesis. I review the cosmological and astrophysical…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alexander Kusenko

In Affleck-Dine baryogenesis, the observed baryon asymmetry of the Universe is generated through the evolution of the vacuum expectation value (VEV) of a scalar condensate. This scalar condensate generically fragments into non-topological…

High Energy Physics - Phenomenology · Physics 2022-12-16 Graham White , Lauren Pearce , Daniel Vagie , Alex Kusenko

Affleck-Dine baryogenesis, accompanied by the formation and subsequent decay of Q-balls, can generate both the baryon asymmetry of the universe and dark matter in the form of gravitinos. The gravitinos from Q-ball decay dominate over the…

High Energy Physics - Phenomenology · Physics 2010-10-27 Ian M. Shoemaker , Alexander Kusenko

We suggest the existence of a fundamental connection between baryonic and dark matter. This is motivated by both the stability of these two types of matter as well as the observed similarity of their present-day densities. A unified genesis…

High Energy Physics - Phenomenology · Physics 2011-07-15 Michael L. Graesser , Ian M. Shoemaker , Luca Vecchi

Supersymmetric extensions of the Standard Model predict the existence of Q-balls, some of which can be entirely stable. Affleck-Dine baryogenesis can result in a copious production of stable baryonic Q-balls, which can presently exist as a…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alexander Kusenko

The Affleck-Dine mechanism, which is one of the most attractive candidates for the baryogenesis in supersymmetric theories, often predicts the existence of baryonic Q balls in the early universe. In this scenario, there is a possibility to…

High Energy Physics - Phenomenology · Physics 2013-05-30 Masahiro Kawasaki , Masaki Yamada

Supersymmetric extensions of the Standard Model predict the existence of Q-balls, some of which can be entirely stable. Both stable and unstable Q-balls can play an important role in cosmology. In particular, Affleck-Dine baryogenesis can…

High Energy Physics - Phenomenology · Physics 2016-11-03 Alexander Kusenko
‹ Prev 1 2 3 10 Next ›