“Dark Matter” Science-Research, March 2022, Week 3 — summary from Astrophysics Data System, OSTI GOV, Arxiv and DOAJ

Astrophysics Data System — summary generated by Brevi Assistant

We proceed with the study of Λ SFDM cosmologies, which differ from Λ CDM because CDM is changed by scalar area dark matter by computing the development of the history Universe, along with linear perturbations, concentrating on scalar modes. The mild falloff in the SFDM power spectrum towards high k resembles that of CDM but based on various effects, specifically the rapidly shrinking Jeans mass for SFDM rather than the Meszaros impact for CDM. The density accounts of dark matter halos are typically designed making use of empirical formulae fitted to the density accounts of unwinded halo populations. We present a neural network model that is trained to learn the mapping from the raw density area containing each halo to the dark matter density profile. This paper researches generalised Ellis-Bronikov traversable wormholes in f expanded gravity. Particle creation mechanisms, defined by either quantum field academic models, or by the thermodynamics of permanent procedures, play a crucial role in the advancement of the very early Universe, like, for instance, in the cozy inflationary scenario. The runaway collapse phase of a small dark matter cluster inside a white dwarf star incorporates a relatively easy to fix phase, where warmth can be transferred to and fro between nuclear and dark matter. Instead, small black holes are formed at the center of the star that either vaporize or accrete stellar material till a macroscopic sub-Chandrasekhar-mass black hole is formed. We use the suite of Milky Way-like galaxies in the Auriga simulations to establish the contribution to annihilation radiation from dark matter subhalos in 3 velocity-dependent dark matter destruction models: Sommerfeld, p-wave, and d-wave models. For both the dark-matter-only and hydrodynamical simulations, just when it comes to the Sommerfeld-enhanced destruction does the overall destruction flux from subhalos surpass the total annihilation change from the smooth halo element within the virial radius of the halo.

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OSTI GOV — summary generated by Brevi Assistant

The nature of dark matter and properties of neutrinos are among the most pressing concerns in modern particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available criterion space for Weakly Interacting Massive Particles, while including considerable sensitivity to many alternative dark matter prospects. The regularity band 1–15 GHz gives exciting potential customers for resonant axion haloscopes as suggested by cosmological and astrophysical debates. In dark matter searches utilizing axion haloscopes, the search level of sensitivity depends on the quality factors of radiofrequency cavities immersed in multi-tesla magnetic areas. We use the current demographics of the Milky Way satellite galaxy population to constrain the lifetime of bit dark matter. We consider two-body rotting dark matter in which a heavy DM particle decays with lifetime τ similar to the age of deep space to a lighter DM particle and to a dark radiation types. Abstract this paper presents a search for dark matter in the context of a two-Higgs-doublet model along with an added pseudoscalar moderator, a, which decomposes right into the dark-matter particles. Processes where the pseudoscalar conciliator is produced in organization with a single top quark in the 2HDM+ a model are checked out for the very first time at the LHC. Future liquid-argon DarkSide-20k and Argo detectors, created for straight dark matter search, will be delicate additionally to core-collapse supernova neutrinos, through meaningful flexible neutrino-nucleus spreading. Lastly, the accuracies in the restoration of the total and typical neutrino energy in the various stages of the supernova burst, as well as its time profile, are also discussed, considering the anticipated background and the detector response.

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Arxiv — summary generated by Brevi Assistant

We checked out a new course of streamlined expansions to the Standard Model including an intricate singlet scalar as a dark matter prospect accompanied by a vector-like lepton as a conciliator, both charged under a Z_3 symmetry. In its simplest kind, the new physics couples just to right-handed electrons, and the model has the ability to accommodate the proper dark matter relic wealth around the electroweak range approximately a number of TeV escaping the toughest restrictions from perturbativity, collider and dark matter searches. Present tensions in cosmology, including H_0 and σ_8 provide one of the strong reasons to believe the presence of physics beyond the common model of cosmology. Low-mass scalar area dark matter may generate obvious oscillations of basic constants, causing corresponding oscillations of the size and the index of refraction of solids. We continue the research study of Λ SFDM cosmologies, which vary from Λ CDM because CDM is changed by scalar field dark matter by calculating the advancement of the background Universe, in addition to direct perturbations, focusing on scalar settings. The moderate falloff in the SFDM power spectrum towards high k resembles that of CDM however based upon different results, specifically the quickly reducing Jeans mass for SFDM rather than the Meszaros result for CDM. This paper studies generalized Ellis-Bronikov traversable wormholes in f prolonged gravity. Complying with, we examine the energy problems which are not dependent on the DM models and those which are model-dependent. Black holes with masses ≈1 M_⊙ can not be generated using stellar development.

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DOAJ — summary generated by Brevi Assistant

In these talks I define a theory of dark matter superfluidity developed. Abstract We study the gravitational waves range generated during the electroweak stage transition in a scale-invariant extension of the Standard Model, enlarged by a dark U_D UD gauge proportion. A model of n − n ′ oscillations is proposed under the structure of the mirror matter concept with slightly damaged mirror symmetry. The picture of how the mirror-to-ordinary matter density ratio is developed in the very early cosmos right into the observed dark-to-baryon matter thickness ratio of regarding 5. 4 exists. Given the recent restraints from the dark matter direct detections, we check out a light GeV-scale neutralino DM in the placement restriction of the Minimal Supersymmetric Standard Model. Abstract Compact stellar things such as neutron stars are optimal areas for capturing dark matter particles. When DM-nucleon cross section σχ n is tiny sufficient, DM self-interaction will take over the capture process and make the number of recorded DM fragments increase in addition to the DM annihilation rate. It has been recently said [1- 3] That there is a solid part of the scattered far-ultraviolet background which is difficult by standard physics in terms of the dust-scattered starlight. We suggest that this excess in FUV radiation might be the result of the dark matter annihilation events within the so-called axion quark nugget dark matter model, which was initially invented for an entirely different purpose to explain the observed similarity in between the dark and the noticeable elements in deep space, i. E. ΩDM ∼ Ωvisible.

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