English
Related papers

Related papers: Charged Q-ball Dark Matter from $B$ and $L$ direct…

200 papers

We examined the viability of new-type charged Q-ball dark matter scenario. We considered the case where the relics can be treated as ordinary ions, to which we applied the observational constraint from MICA experiment, where no trail of…

High Energy Physics - Phenomenology · Physics 2017-07-05 Jeong-Pyong Hong , Masahiro Kawasaki

Gauge-mediated models of supersymmetry-breaking imply that stable Q-balls can form in the early universe and act as dark matter. All stable Q-balls in the MSSM are associated with one or more flat directions. We show that while Q-balls are…

High Energy Physics - Phenomenology · Physics 2009-07-28 Ian M. Shoemaker

We study Q-ball dark matter in gauge-mediated supersymmetry breaking, and seek the possibility of detection in the IceCube experiment. We find that the Q balls would be the dark matter in the parameter region different from that for…

High Energy Physics - Phenomenology · Physics 2016-06-21 Shinta Kasuya , Masahiro Kawasaki , Tsutomu T. Yanagida

We consider different types of Q-balls as self-interacting dark matter. For the Q-balls to act as the dark matter of the universe they should not evaporate, which requires them to carry very large charges; depending on the type, the minimum…

High Energy Physics - Phenomenology · Physics 2009-11-07 K. Enqvist , A. Jokinen , T. Multamaki , I. Vilja

We obtain a new type of a stable Q ball in the context of gauge-mediated supersymmetry breaking in minimal supersymmetric standard model. It is so-called gravity-mediation type of Q ball, but stable against the decay into nucleons, since…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. Kasuya , M. Kawasaki

We numerically study the formation of the gauge-mediation type Q balls in the logarithmic square potential on three-dimensional lattices. We obtain the broad charge distribution of the Q ball of this type for the first time. The charge of…

High Energy Physics - Phenomenology · Physics 2025-10-23 Shinta Kasuya , Masahiro Kawasaki

Q-ball dark matter is one of the candidates for the macroscopic dark matter: Q-ball is a non-topological solitonic configuration, whose stability can be ensured by global charge and energy conservation. One of the crucial factors for…

High Energy Physics - Phenomenology · Physics 2026-02-02 Ayuki Kamada , Takumi Kuwahara , Keiichi Watanabe

As a new type of dynamical dark matter mechanism, we discuss the stability of the gauged Q-ball dark matter and its production mechanism through a cosmological first-order phase transition. This work delves into the study of gauged Q-ball…

High Energy Physics - Phenomenology · Physics 2024-07-09 Siyu Jiang , Fa Peng Huang , Pyungwon Ko

Dark Matter might be an accidentally stable baryon of a new confining gauge interaction. We extend previous studies exploring the possibility that the DM is made of dark quarks heavier than the dark confinement scale. The resulting…

High Energy Physics - Phenomenology · Physics 2017-11-21 Andrea Mitridate , Michele Redi , Juri Smirnov , Alessandro Strumia

Stable baryonic Q-balls, which appear in supersymmetric extensions of the Standard Model, could form at the end of cosmological inflation from fragmentation of the Affleck -- Dine condensate. We reconsider astrophysical constraints on such…

Astrophysics · Physics 2009-11-13 Alexander Kusenko , Lee C. Loveridge , Mikhail Shaposhnikov

We investigate the scenario that one flat direction creates baryon asymmetry of the unverse, while Q balls from another direction can be the dark matter in the gauge-mediated supersymmetry breaking for high-scale inflation. Isocurvature…

High Energy Physics - Phenomenology · Physics 2015-06-22 Shinta Kasuya , Masahiro Kawasaki

We investigate that the two types of the Q balls explain the baryon asymmetry and the dark matter of the universe in the gauge-mediated supersymmetry breaking. The gauge-mediation type Q balls of one flat direction produce baryon asymmetry,…

High Energy Physics - Phenomenology · Physics 2015-06-18 Shinta Kasuya , Masahiro Kawasaki

Q-balls are non-topological solitons whose classical stability is ensured by a global $U(1)$ charge. In particular, Q-balls are produced in the framework of the Affleck-Dine baryogenesis where $U(1)$ charge is the baryon number. Since some…

High Energy Physics - Phenomenology · Physics 2020-06-22 Masahiro Kawasaki , Hiromasa Nakatsuka

The spectrum of MSSM admits solitons carrying baryonic charge, or B-balls. In an inflationary universe they can be produced in significant numbers by a break-up of a scalar condensate along the flat directions. It is shown that if SUSY…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kari Enqvist

Supersymmetric extensions of the standard model generically contain stable non-topological solitons, Q-balls, which carry baryon or lepton number. We show that large Q-balls can be copiously produced in the early universe, can survive until…

High Energy Physics - Phenomenology · Physics 2011-05-05 Alexander Kusenko , Mikhail Shaposhnikov

It is known that after Affleck-Dine baryogenesis, spatial inhomogeneities of Affleck-Dine field grow into non-topological solitons called Q-balls. In gauge mediated SUSY breaking models, sufficiently large Q-balls with baryon charge are…

High Energy Physics - Phenomenology · Physics 2015-09-23 Jeong-Pyong Hong , Masahiro Kawasaki , Masaki Yamada

It has been recently suggested that stable, supersymmetric B-balls formed in the early universe could not only be the dark matter at the present epoch, but also be responsible for baryogenesis by their partial evaporation at high…

High Energy Physics - Phenomenology · Physics 2009-10-31 Robi Banerjee , Karsten Jedamzik

Current evidence for dark matter in the universe does not exclude heavy composite nuclear-density objects consisting of bound quarks or antiquarks over a significant range of masses. Here we analyze one such proposed scenario, which…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-30 Peter. W. Gorham

Stable baryonic Q-balls, which appear in supersymmetric extensions of the Standard Model, could form at the end of cosmological inflation from fragmentation of the Affleck-Dine condensate. They can be dark matter. The existing bounds rely…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jason Schissel

Dark matter in spiral galaxies like the Milky Way may take the form of a dark plasma. Hidden sector dark matter charged under an unbroken $U(1)'$ gauge interaction provides a simple and well defined particle physics model realising this…

Astrophysics of Galaxies · Physics 2016-01-27 Jackson D. Clarke , Robert Foot
‹ Prev 1 2 3 10 Next ›