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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

It is usually assumed that the order H^2 corrections to the SUSY-breaking mass squared terms in the early Universe must be negative in order to allow the Affleck-Dine mechanism to work. We reconsider this assumption in the context of D-term…

High Energy Physics - Phenomenology · Physics 2009-10-31 John McDonald

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 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

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

We propose a scenario which can explain large lepton asymmetry and small baryon asymmetry simultaneously. Large lepton asymmetry is generated through Affleck-Dine (AD) mechanism and almost all the produced lepton numbers are absorbed into…

High Energy Physics - Phenomenology · Physics 2009-11-07 M. Kawasaki , Fuminobu Takahashi , Masahide Yamaguchi

In the version 1, we proposed a mechanism to create baryon asymmetry in a conformally sequestered supersymmetry (SUSY) breaking scenario through the Affleck-Dine (AD) mechanism. After the submission, however, we found a critical error in…

High Energy Physics - Phenomenology · Physics 2010-03-10 Kazunori Nakayama , Fuminobu Takahashi

We present a minimal approach to the generation of the baryon ($B$) asymmetry of the Universe, in which the asymmetry is generated in a complex inflaton condensate via $B$-violating quadratic inflaton potential terms using the Affleck-Dine…

High Energy Physics - Phenomenology · Physics 2021-06-16 Amy Lloyd-Stubbs , John McDonald

The Affleck-Dine mechanism creates the baryon asymmetry of the universe from an angular motion of a complex scalar field. The mechanism is efficient and allows for a low reheating temperature of the universe if the scalar field has a flat…

High Energy Physics - Phenomenology · Physics 2019-09-04 Keisuke Harigaya

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

Affleck-Dine (AD) baryogenesis can produce the baryon asymmetry of the Universe through the $CP$-violating dynamics of AD field. The field generally fragments into Q-balls, whose rapid decay induces enhanced gravitational waves. In this…

Cosmology and Nongalactic Astrophysics · Physics 2025-04-11 Yan-Heng Yu , Sai Wang

We discuss the implications of Affleck-Dine (AD) baryogenesis for different classes of baryon and lepton number violating processes: specially focussing on implications for neutron-anti-neutron ($n-\bar{n}$) oscillation. The class of AD…

High Energy Physics - Phenomenology · Physics 2021-09-29 Rabindra N. Mohapatra , Nobuchika Okada

Motivated by recent developments, we explore some issues in Affleck-Dine baryogenesis. We consider in greater detail the role of thermal effects in the production of baryon number. We find that these effects are important even for rather…

High Energy Physics - Phenomenology · Physics 2009-10-31 Alexey Anisimov , Michael Dine

The Standard Model of particle physics does not explain the origin of the universe's baryon asymmetry or its primordial fluctuations. The Affleck-Dine mechanism is a well-motivated scenario for generating the baryon asymmetry through the…

High Energy Physics - Phenomenology · Physics 2025-07-30 Aurora Ireland , Gordan Krnjaic , Takuya Okawa

Thermal inflation is an attractive idea to dilute cosmic density of unwanted particles such as moduli fields which cause cosmological difficulties. However, it also dilutes preexisting baryon asymmetry and some viable baryogenesis is…

High Energy Physics - Phenomenology · Physics 2016-04-06 Taku Hayakawa , Masahiro Kawasaki , Masaki Yamada

We present a novel Affleck-Dine scenario for the generation of the observed baryon asymmetry of the Universe based on the non-trivial interplay between quintessential inflationary models containing a kinetic dominated post-inflationary era…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-30 Dario Bettoni , Javier Rubio

Previously, we proposed a model of low energy Affleck-Dine leptogenesis in the context of thermal inflation. The lepton asymmetry is generated at the end of thermal inflation, which occurs at a relatively low energy scale with the Hubble…

High Energy Physics - Phenomenology · Physics 2010-10-27 Gary N. Felder , Hyunbyuk Kim , Wan-Il Park , Ewan D. Stewart

For Affleck-Dine baryogenesis to proceed, there must have been two types of phase transitions. One is the destabilized-stabilized phase transition of the flat direction, which is in general induced by the Hubble parameter. The other is the…

High Energy Physics - Phenomenology · Physics 2016-09-06 Tomohiro Matsuda

Fluctuations of scalar fields produced at the stage of preheating after inflation are so large that they can break supersymmetry much stronger than inflation itself. These fluctuations may lead to symmetry restoration along flat directions…

High Energy Physics - Phenomenology · Physics 2009-09-29 Greg. W. Anderson , Andrei Linde , Antonio Riotto

Pangenesis is the mechanism for jointly producing the visible and dark matter asymmetries via Affleck-Dine dynamics in a baryon-symmetric universe. The baryon-symmetric feature means that the dark asymmetry cancels the visible baryon…

High Energy Physics - Phenomenology · Physics 2012-05-21 Benedict von Harling , Kalliopi Petraki , Raymond R. Volkas
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