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We derive new constraints on combination of dark matter - electron cross-section ($\sigma_{\chi e}$) and dark matter - neutrino cross-section ($\sigma_{\chi \nu}$) utilising the gain in kinetic energy of the dark matter (DM) particles due…

高能物理 - 唯象学 · 物理学 2022-05-30 Diptimoy Ghosh , Atanu Guha , Divya Sachdeva

We present a new inelastic dark matter search: neutron stars in dark matter-rich environments capture inelastic dark matter which, for interstate mass splittings between about $45 - 285 \ \rm MeV$, will annihilate away before becoming fully…

高能物理 - 唯象学 · 物理学 2024-04-17 Javier F. Acevedo , Joseph Bramante , Qinrui Liu , Narayani Tyagi

We consider a recently proposed model in which dark matter interacts with a thermal background of dark radiation. Dark radiation consists of relativistic degrees of freedom which allow larger values of the expansion rate of the universe…

宇宙学与河外天体物理 · 物理学 2018-01-24 Manuel A. Buen-Abad , Martin Schmaltz , Julien Lesgourgues , Thejs Brinckmann

We point out that power measurements of single quasiparticle devices open a new avenue to detect dark matter (DM). The threshold of these devices is set by the Cooper pair binding energy, and is therefore so low that they can detect DM as…

高能物理 - 唯象学 · 物理学 2024-03-26 Anirban Das , Noah Kurinsky , Rebecca K. Leane

This article reviews recent progress in observational determination of the properties of dark matter on small astrophysical scales, and progress towards the European Extremely Large Telescope. Current results suggest some surprises: the…

天体物理学 · 物理学 2007-05-23 Gerard Gilmore

Neutron stars contain a significant number of stable muons due to the large chemical potential and degenerate electrons. This makes them the unique vessel to capture muonphilic dark matter, which does not interact with other astrophysical…

高能物理 - 唯象学 · 物理学 2019-09-04 Raghuveer Garani , Julian Heeck

Large galaxies may contain an "atmosphere" of hot interstellar X-ray gas, and the temperature and radial density profile of this gas can be used to measure the total mass of the galaxy contained within a given radius r. We use this…

星系天体物理 · 物理学 2020-12-16 William E. Harris , Rhea-Silvia Remus , Gretchen L. H. Harris , Iurii V. Babyk

We derive constraints on parameters of the radiatively decaying Dark Matter (DM) particles, using XMM-Newton EPIC spectra of the Andromeda galaxy (M31). Using the observations of the outer (5'-13') parts of M31 we improve the existing…

天体物理学 · 物理学 2008-11-07 Alexey Boyarsky , Dmytro Iakubovskyi , Oleg Ruchayskiy , Vladimir Savchenko

Dark matter (DM) as a thermal relic of the primordial plasma is increasingly pressured by direct and indirect searches, while the same production mechanism in a decoupled sector is much less constrained. We extend the standard treatment of…

高能物理 - 唯象学 · 物理学 2021-05-19 Torsten Bringmann , Paul Frederik Depta , Marco Hufnagel , Kai Schmidt-Hoberg

We propose the nucleon consumption induced by dark matter (DM) as a new scenario to overcome the energy threshold of direct detection. It can be realized with proton ($\chi + p \rightarrow \chi + \ell^+$) or neutron ($\chi + n \rightarrow…

高能物理 - 唯象学 · 物理学 2024-12-20 Shao-Feng Ge , Xiao-Dong Ma

Structure formation creates high temperature and density regions in the Universe that allow the conversion of matter into more stable states, with a corresponding emission of relativistic matter and radiation. An example of such a mechanism…

宇宙学与河外天体物理 · 物理学 2013-06-11 D. Boriero , P. C. de Holanda , M. Motta

Driven by the null results in the searches for dark matter, the field of direct dark matter detection is constantly evolving to push new frontiers. Ultimately, a vast parameter space for dark matter masses below a few GeV is yet to be…

高能物理 - 实验 · 物理学 2025-12-18 Melih Solmaz

In this paper, after reviewing some of the most important concepts about Dark Matter (DM) and methods of its registration, in particular by using SQUIDs, we focus on two main problems. First, the possible mechanism of magnetic moment origin…

We present, for the first time, a complete treatment of strongly-interacting dark matter capture in planets, taking Earth as an example. We focus on light dark matter and the heating of Earth by dark matter annihilation, addressing a number…

高能物理 - 唯象学 · 物理学 2023-09-14 Joseph Bramante , Jason Kumar , Gopolang Mohlabeng , Nirmal Raj , Ningqiang Song

Astrophysical observations spanning dwarf galaxies to galaxy clusters indicate that dark matter (DM) halos are less dense in their central regions compared to expectations from collisionless DM N-body simulations. Using detailed fits to DM…

宇宙学与河外天体物理 · 物理学 2016-02-03 Manoj Kaplinghat , Sean Tulin , Hai-Bo Yu

We study a Dark Matter (DM) model in which the dominant coupling to the standard model occurs through a neutrino-DM-scalar coupling. The new singlet scalar will generically have couplings to nuclei/electrons arising from renormalizable…

高能物理 - 唯象学 · 物理学 2020-07-22 Nicholas Hurtado , Hana Mir , Ian M. Shoemaker , Eli Welch , Jason Wyenberg

Ever since the discovery of neutron stars it has been realized that they serve as probes of a physical regime that cannot be accessed in laboratories: strongly degenerate matter at several times nuclear saturation density. Existing nuclear…

高能天体物理现象 · 物理学 2013-12-04 M. Coleman Miller

We propose a strategy of how to look for dark matter (DM) particles possessing a radiative decay channel and derive constraints on their parameters from observations of X-rays from our own Galaxy and its dwarf satellites. When applied to…

天体物理学 · 物理学 2008-11-26 A. Boyarsky , A. Neronov , O. Ruchayskiy , M. Shaposhnikov , I. Tkachev

Kinetic heating of old cold neutron stars, via the scattering of dark matter with matter in the star, provides a promising way to probe the nature of dark matter interactions. We consider a dark matter candidate that is a Standard Model…

高能物理 - 唯象学 · 物理学 2025-10-24 Nicole F. Bell , Giorgio Busoni , Avirup Ghosh

We investigate the structural and observable impacts of dark matter (DM) on neutron stars using a combined equation of state that integrates the relativistic mean field (RMF) model for baryonic matter with a variable density profile for DM,…

高能天体物理现象 · 物理学 2025-01-14 Ankit Kumar , Hajime Sotani