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Asymmetric dark matter (ADM) is motivated by the similar cosmological mass densities measured for ordinary and dark matter. We present a comprehensive theory for ADM that addresses the mass density similarity, going beyond the usual ADM…

High Energy Physics - Phenomenology · Physics 2018-05-23 Stephen J. Lonsdale , Raymond R. Volkas

In the context of Twin Higgs models, we study a simple mechanism that simultaneously generates asymmetries in the dark and visible sector through the out-of-equilibrium decay of a TeV scale particle charged under a combination of baryon and…

High Energy Physics - Phenomenology · Physics 2016-08-24 Marco Farina , Angelo Monteux , Chang Sub Shin

The similar cosmological abundances observed for visible and dark matter suggest a common origin for both. By viewing the dark matter density as a dark-sector asymmetry, mirroring the situation in the visible sector, we show that the…

High Energy Physics - Phenomenology · Physics 2012-03-01 Kalliopi Petraki , Mark Trodden , Raymond R. Volkas

We propose a novel framework where baryon asymmetry of the universe can arise due to forbidden decay of dark matter (DM) enabled by finite-temperature effects in the vicinity of a first order phase transition (FOPT). In order to implement…

High Energy Physics - Phenomenology · Physics 2023-10-13 Debasish Borah , Arnab Dasgupta , Matthew Knauss , Indrajit Saha

We present a simple mechanism which allows the simultaneous generation of the baryon asymmetry of the Universe along with its dark matter content. To this goal, we employ the out-of-equilibrium decays of heavy bath states into a feebly…

High Energy Physics - Phenomenology · Physics 2022-02-17 Andreas Goudelis , Pantelis Papachristou , Vassilis C. Spanos

We investigate a theory of $SU(9)$ dark grand unification, where dark matter consists of asymmetric dark baryons from the $Sp(4)_D$ dark QCD sector. By unifying the dark color gauge group with the Standard Model gauge group, the asymmetry…

High Energy Physics - Phenomenology · Physics 2026-02-03 Yi Chung

We propose a novel mechanism to generate a suitable baryon asymmetry from dark (hidden) sector. This is a Baryogenesis through a reverse pathway of the "asymmetric dark matter" scenario. In the mechanism, the asymmetry of dark matter is…

High Energy Physics - Phenomenology · Physics 2011-09-12 N. Haba , S. Matsumoto

In a baryon-symmetric universe, the baryon asymmetry observed for visible matter is matched by an equal and opposite asymmetry for dark matter, thereby closely connecting the number densities of both types of matter. This is a necessary…

High Energy Physics - Phenomenology · Physics 2015-06-12 Raymond R. Volkas

The phenomena of dark matter and the baryon asymmetry pose two of the most pressing questions in today's fundamental physics. Conversion-driven freeze-out has emerged as a successful mechanism to generate the observed dark matter relic…

High Energy Physics - Phenomenology · Physics 2024-11-12 Jan Heisig

We explore a mechanism for producing the baryon asymmetry and dark matter in models with multiple hidden sectors that are Standard-Model-like but with varying Higgs mass parameters. If the field responsible for reheating the Standard Model…

High Energy Physics - Phenomenology · Physics 2024-04-08 Hassan Easa , Thomas Gregoire , Daniel Stolarski , Catarina Cosme

We introduce a model for matters-genesis in which both the baryonic and dark matter asymmetries originate from a first-order phase transition in a dark sector with an $SU(3)\times SU(2)\times U(1)$ gauge group and minimal matter content. In…

High Energy Physics - Phenomenology · Physics 2023-03-10 Eleanor Hall , Thomas Konstandin , Robert McGehee , Hitoshi Murayama

Asymmetric symmetry breaking models dynamically break the G X G gauge symmetries of mirror models to distinct subgroups in the two sectors. The coincidental abundances of visible and dark matter, $\Omega_{DM} \simeq 5\Omega_{VM}$, motivates…

High Energy Physics - Phenomenology · Physics 2015-07-08 Stephen J. Lonsdale

The observable cosmos exhibits sizable baryon asymmetry, small active neutrino masses, and the presence of dark matter (DM). To address these phenomena together, we propose a two component DM scenario in an extension of Scotogenic model,…

High Energy Physics - Phenomenology · Physics 2025-09-12 Subhaditya Bhattacharya , Devabrat Mahanta , Niloy Mondal , Dipankar Pradhan

We propose an extension of the standard model (SM) by including a dark sector comprising of three generations of heavy right-handed neutrinos, a singlet scalar and a singlet Dirac fermion, where the latter two particles are stable and are…

High Energy Physics - Phenomenology · Physics 2020-01-07 Nimmala Narendra , Sudhanwa Patra , Narendra Sahu , Sujay Shil

In this work, we explain three beyond standard model (BSM) phenomena, namely neutrino masses, the baryon asymmetry of the Universe and Dark Matter, within a single model and in each explanation the right handed (RH) neutrinos play the prime…

High Energy Physics - Phenomenology · Physics 2019-06-26 Anirban Biswas , Sandhya Choubey , Laura Covi , Sarif Khan

D3-brane probes of E-type Yukawa points lead to strongly coupled nearly conformal sectors nearby the Standard Model (visible sector) which are motivated by F-theory GUTs. Realistic visible sector brane configurations induce a seesaw mass…

High Energy Physics - Theory · Physics 2015-03-19 Jonathan J. Heckman , Soo-Jong Rey

We investigate a minimal extension of the Leptogenesis framework that simultaneously explains the observed baryon asymmetry and dark matter (DM) abundance through the decay of a heavy Majorana neutrino. In this scenario, CP violation arises…

High Energy Physics - Phenomenology · Physics 2026-04-22 Henry G. F. McKenna , Juri Smirnov , Martin Gorbahn

We illustrate, via a simplified model, a scenario in which the baryon-asymmetry and, possibly the dark matter component of the Universe are simultaneously generated by the decay of a WIMP-like mother particle, in turn produced non-thermally…

High Energy Physics - Phenomenology · Physics 2026-04-15 Giorgio Arcadi , Sarif Khan , Agnese Mariotti

We present a new realization of asymmetric dark matter in which the dark matter and lepton asymmetries are generated simultaneously through two-sector leptogenesis. The right-handed neutrinos couple both to the Standard Model and to a…

High Energy Physics - Phenomenology · Physics 2011-05-26 Adam Falkowski , Joshua T. Ruderman , Tomer Volansky

The observed dark matter relic abundance may be explained by different mechanisms, such as thermal freeze-out/freeze-in, with one or more symmetric/asymmetric components. In this work we investigate the role played by asymmetries in…

High Energy Physics - Phenomenology · Physics 2023-05-15 Juan Herrero-Garcia , Giacomo Landini , Drona Vatsyayan