English
Related papers

Related papers: Baryon and Dark Matter Genesis from Strongly Coupl…

200 papers

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

D3-brane probes of exceptional Yukawa points in F-theory GUTs are natural hidden sectors for particle phenomenology. We find that coupling the probe to the MSSM yields a new class of N = 1 conformal fixed points with computable infrared…

High Energy Physics - Theory · Physics 2012-03-07 Jonathan J. Heckman , Cumrun Vafa , Brian Wecht

We introduce a new mechanism for the simultaneous generation of baryon and dark matter asymmetries through ultraviolet-dominated freeze-in scatterings. The mechanism relies on heavy Majorana neutrinos that connect the visible Standard Model…

High Energy Physics - Phenomenology · Physics 2026-03-05 Pouya Asadi , Marianne Moore , David E. Morrissey , Michael Shamma

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

Motivated by the observed ratio of dark matter to baryon mass densities, $\rho_D/\rho_B \simeq 5$, we propose a theory of dark-color unification. In this theory, the dark to visible baryon masses are fixed by the ratio of dark to visible…

High Energy Physics - Phenomenology · Physics 2022-05-18 Clara Murgui , Kathryn M. Zurek

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

In standard models of baryogenesis and of dark matter, the mechanisms which generate the densities in both sectors are unrelated to each other. In this paper we explore models which generate the baryon asymmetry through the dark matter…

High Energy Physics - Phenomenology · Physics 2010-12-24 Jessie Shelton , Kathryn M. Zurek

We propose a unified theory of dark matter (DM) genesis and baryogenesis. It explains the observed link between the DM density and the baryon density, and is fully testable by a combination of collider experiments and precision tests. Our…

High Energy Physics - Phenomenology · Physics 2010-10-04 Lawrence J. Hall , John March-Russell , Stephen M. West

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 argue that the striking similarity between the cosmic abundances of baryons and dark matter, despite their very different astrophysical behavior, strongly motivates the scenario in which dark matter resides within a rich dark sector…

High Energy Physics - Phenomenology · Physics 2024-06-13 Arushi Bodas , Manuel A. Buen-Abad , Anson Hook , Raman Sundrum

Motivated by the recent CDF measurement of the $W$-boson mass, we study string-based particle physics models which can accommodate this deviation from the Standard Model. We consider an F-theory GUT in which the visible sector is realized…

High Energy Physics - Phenomenology · Physics 2022-08-24 Jonathan J. Heckman

The measured densities of dark and baryonic matter are surprisingly close to each other, even though the baryon asymmetry and the dark matter are usually explained by unrelated mechanisms. We consider a scenario where the dark matter S is…

High Energy Physics - Phenomenology · Physics 2009-11-10 Ryuichiro Kitano , Ian Low

Low-scale baryogenesis and dark matter generation can occur via the production of neutral $B$ mesons at MeV temperatures in the early Universe, which undergo CP-violating oscillations and subsequently decay into a dark sector. In this work,…

High Energy Physics - Phenomenology · Physics 2020-04-22 Gonzalo Alonso-Álvarez , Gilly Elor , Ann E. Nelson , Huangyu Xiao

We consider the production of asymmetric dark matter during hidden sector baryogenesis. We consider a particular supersymmetric model where the dark matter candidate has a number density approximately equal to the baryon number density,…

High Energy Physics - Phenomenology · Physics 2011-10-03 Bhaskar Dutta , Jason Kumar

The quantum chromodynamics axion with a decay constant near the Grand Unification (GUT) scale has an ultralight mass near a neV. We show, however, that axion-like particles with masses near the keV - PeV range with GUT-scale decay constants…

High Energy Physics - Phenomenology · Physics 2023-01-18 Joshua W. Foster , Soubhik Kumar , Benjamin R. Safdi , Yotam Soreq

In this Letter, we propose a new possible connection between dark matter relic density and baryon asymmetry of the universe. The portal between standard model sector and dark matter not only controls the relic density and detections of dark…

High Energy Physics - Phenomenology · Physics 2015-05-30 Talal Ahmed Chowdhury , Miha Nemevsek , Goran Senjanovic , Yue Zhang

We propose a minimal extension of the standard model with U(1)_{B-L} \times Z_{2} symmetry. In this model by assuming that the neutrinos are Dirac (i.e. $B-L$ is an exact symmetry), we found a simultaneous solution for non zero neutrino…

High Energy Physics - Phenomenology · Physics 2018-10-17 Nimmala Narendra , Nirakar Sahoo , Narendra Sahu

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 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

The cosmological origin of both dark and baryonic matter can be explained through a unified mechanism called hylogenesis where baryon and antibaryon number are divided between the visible sector and a GeV-scale hidden sector, while the…

High Energy Physics - Phenomenology · Physics 2012-12-04 Nikita Blinov , David E. Morrissey , Kris Sigurdson , Sean Tulin
‹ Prev 1 2 3 10 Next ›