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The relic abundance of asymmetric Dark Matter particles in the scalar--tensor model is analysized in this article. We extend the numeric and analytic calculation of the relic density of the asymmetric Dark Matter in the standard…

High Energy Physics - Phenomenology · Physics 2016-03-16 Shun-zhi Wang , Hoernisa Iminniyaz , Mamatrishat Mamat

We investigate the relic abundance of asymmetric Dark Matter where the asymmetric Dark Matter is non--thermally produced from the decay of heavier particles in addition to the usual thermal production. We discuss the relic density of…

High Energy Physics - Phenomenology · Physics 2023-08-02 Maqingshan , Hoernisa Iminniyaz

We discuss the relic abundance of asymmetric Dark Matter particles in modified cosmological scenarios where the Hubble rate is changed with respect to the standard cosmological scenario. The modified Hubble rate leaves its imprint on the…

High Energy Physics - Phenomenology · Physics 2018-12-26 Hoernisa Iminniyaz , Burhan Salai , Guoliang Lv

Relic abundance of asymmetric Dark Matter particles in brane world cosmological scenario is investigated in this article. Hubble expansion rate is enhanced in brane world cosmology and it affects the relic abundance of asymmetric Dark…

High Energy Physics - Phenomenology · Physics 2016-09-21 Haximjan Abdusattar , Hoernisa Iminniyaz

We investigate the relic abundance of asymmetric Dark Matter particles that were in thermal equilibrium in the early universe. The standard analytic calculation of the symmetric Dark Matter is generalized to the asymmetric case. We…

High Energy Physics - Phenomenology · Physics 2015-05-28 Hoernisa Iminniyaz , Manuel Drees , Xuelei Chen

We investigate the evolution of the abundance of the asymmetric thermal Dark Matter when its annihilation rate at chemical decoupling is boosted by the Sommerfeld enhancement. We perform the detailed analysis of the effect of $s$-- and…

High Energy Physics - Phenomenology · Physics 2020-09-02 Hoernisa Iminniyaz

We investigate the relic abundance of asymmetric Dark Matter particles in quintessence model with a kination phase. The analytic calculation of the asymmetric Dark Matter in the standard cosmological scenario is extended to the nonstandard…

High Energy Physics - Phenomenology · Physics 2015-06-16 Hoernisa Iminniyaz , Xuelei Chen

We investigate the evolution of abundance of the asymmetric thermal Dark Matter when its annihilation rate at chemical decoupling is boosted by the Sommerfeld enhancement. Then we discuss the effect of kinetic decoupling on relic abundance…

High Energy Physics - Phenomenology · Physics 2021-02-03 Aihemaitijiang Abudurusuli , Hoernisa Iminniyaz

The class of `Asymmetric Dark Matter' scenarios relies on the existence of a primordial particle/anti-particle asymmetry in the dark sector related to the baryon asymmetry as a way to address the observed similarity between the baryonic and…

High Energy Physics - Phenomenology · Physics 2013-01-01 Gabrijela Zaharijas

We extend the analysis of asymmetric Dark Matter relic density with Sommerfeld enhancement to the case where the mediator is massive. In asymmetric Dark Matter models, the asymmetric Dark Matter is assumed to couple to light scalar or…

High Energy Physics - Phenomenology · Physics 2021-02-24 Aerman Sulitan , Hoernisa Iminniyaz , Mu Baoxia

The relic abundance of the dark matter (DM) particle $d$ is studied in a secluded DM scenario, in which the $d$ number decreasing process dominantly occurs not through the pair annihilation of $d$ into the standard model particles, but via…

High Energy Physics - Phenomenology · Physics 2017-03-08 Shohei Okawa , Masaharu Tanabashi , Masato Yamanaka

We investigate the effect of a braneworld expansion era on the relic density of asymmetric dark matter. We find that the enhanced expansion rate in the early universe predicted by the Randall-Sundrum II (RSII) model leads to earlier…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Michael T. Meehan , Ian B. Whittingham

We review theories of Asymmetric Dark Matter (ADM), their cosmological implications and detection. While there are many models of ADM in the literature, our review of existing models will center on highlighting the few common features and…

High Energy Physics - Phenomenology · Physics 2015-06-16 Kathryn M. Zurek

Asymmetric dark matter models are based on the hypothesis that the present-day abundance of dark matter has the same origin as the abundance of ordinary or visible matter: an asymmetry in the number densities of particles and antiparticles.…

High Energy Physics - Phenomenology · Physics 2013-08-02 Kalliopi Petraki , Raymond R. Volkas

We show that the relic density of asymmetric dark matter with long-range interactions is affected by the Sommerfeld enhancement. The annihilation cross section of asymmetric dark matter is enhanced due to the Sommerfeld effect. It results…

High Energy Physics - Phenomenology · Physics 2024-03-05 Sujuan Qiu , Hoernisa Iminniyaz , Wensheng Huo

In models of Asymmetric Dark Matter (ADM) the relic density is set by a particle asymmetry in an analogous manner to the baryons. Here we explore the scenario in which ADM decouples from the Standard Model thermal bath during an early…

High Energy Physics - Phenomenology · Physics 2025-11-06 Prolay Chanda , James Unwin

We show that the relic abundance of the minority component of asymmetric dark matter can be very sensitive to the expansion rate of the Universe and the temperature of transition between a non-standard pre-Big Bang Nucleosynthesis…

High Energy Physics - Phenomenology · Physics 2015-06-15 Graciela B. Gelmini , Ji-Haeng Huh , Thomas Rehagen

We investigate the evolution of the relic density for asymmetric dark matter incorporating self annihilation processes in both the shear-dominated universe and Gauss-Bonnet braneworld. Under the same conditions where the ratio of final…

High Energy Physics - Phenomenology · Physics 2025-05-08 Qiquan Li , Hoernisa Iminniyaz , Fangyu Liu

In existing dark matter models with global symmetries the relic abundance of dark matter is either equal to that of anti-dark matter (thermal WIMP), or vastly larger, with essentially no remaining anti-dark matter (asymmetric dark matter).…

High Energy Physics - Phenomenology · Physics 2015-05-27 Michael L. Graesser , Ian M. Shoemaker , Luca Vecchi

Based on the cosmological observations, the baryon and dark matter energy densities are similar. There may exist an asymmetry between the dark matter particles and their corresponding anti--particles. We review the relic density of…

High Energy Physics - Phenomenology · Physics 2023-10-06 Qiu Sujuan , Hoernisa Iminniyaz
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