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We assess Galactic Dark Matter (DM) sensitivities to photons from annihilation and decay using the spatial and kinematic information determined by state-of-the-art simulations in the Latte suite of Feedback In Realistic Environments…

高能天体物理现象 · 物理学 2020-10-14 Dawei Zhong , Mauro Valli , Kevork N. Abazajian

If dark matter (DM) is composed by particles which are non-gravitationally coupled to ordinary matter, their annihilations or decays in cosmic structures can result in detectable radiation. We show that the most powerful technique to detect…

宇宙学与河外天体物理 · 物理学 2015-06-24 Marco Regis , Jun-Qing Xia , Alessandro Cuoco , Enzo Branchini , Nicolao Fornengo , Matteo Viel

The identity of Dark Matter (DM) is one of the most captivating topics in particle physics today. The R-parity conserving Minimal Supersymmetric Standard Model (MSSM), which naturally provides a DM candidate in the form of the lightest…

高能物理 - 唯象学 · 物理学 2018-01-15 Carlos Ávila , Andrés Flórez , Alfredo Gurrola , Dale Julson , Savanna Starko

We present a computational tool, TweedleDEE, for empirically modeling diffuse gamma-ray background emission in a 1 degree region of the sky, using publicly available gamma-ray data off-axis from the region of interest. This background model…

高能天体物理现象 · 物理学 2025-03-28 Chance Hoskinson , Jason Kumar , Pearl Sandick

We studied Dark Matter (DM) phenomenology with multiple DM species consisting of both scalar and vector DM particles in the Hidden Gauged SU(3) model of Arcadi et al. Because of the large parameter space in the Hidden Gauged SU(3) model we…

高能物理 - 唯象学 · 物理学 2019-11-11 Stephen Godfrey , Alexandre Poulin

Dark matter plays a crucial role in our comprehension of the universe, but its mysterious nature poses challenges for direct detection. A primary obstacle in detecting dark matter is distinguishing genuine signals from the prevailing…

高能物理 - 实验 · 物理学 2025-03-05 M. Mirzakhani , S. Maludze

There are strong evidences for existence of dark matter in some experiments at present. However, the question is that we do not have a reasonable explanation for dark matter in the framework of the Standard Model(SM) of particle physics. It…

高能物理 - 唯象学 · 物理学 2019-05-29 Jing-Jing Feng , Shu-Min Zhao , Xing-Xing Dong , Zhong-Jun Yang , Hai-Bin Zhang , Fang Wang , Tai-Fu Feng

We are at the dawn of a data-driven era in astrophysics and cosmology. A large number of ongoing and forthcoming experiments combined with an increasingly open approach to data availability offer great potential in unlocking some of the…

宇宙学与河外天体物理 · 物理学 2018-09-14 Siddharth Mishra-Sharma

For nearly a century, more mass has been measured in galaxies than is contained in the luminous stars and gas. Through continual advances in observations and theory, it has become clear that the dark matter in galaxies is not comprised of…

宇宙学与河外天体物理 · 物理学 2015-06-12 Louis E. Strigari

The available data on large scale structures seem to favour models with mixed dark matter (MDM), i.e. with a hot and cold component in a rather well--defined amount, or with some form of ``warm" dark matter. I discuss some prospects for…

高能物理 - 唯象学 · 物理学 2016-09-01 A. Masiero

In this paper, we introduce a novel program of fixed-target searches for thermal-origin Dark Matter (DM), which couples inelastically to the Standard Model. Since the DM only interacts by transitioning to a heavier state, freeze-out…

高能物理 - 唯象学 · 物理学 2018-04-05 Eder Izaguirre , Yonatan Kahn , Gordan Krnjaic , Matthew Moschella

We present a systematic search for potential dark matter clumps in our Galaxy among the 630 unassociated sources included in the LAT 1-year Point Source Catalog. Assuming a dark matter particle that generates observable gamma-ray photons…

高能天体物理现象 · 物理学 2019-08-13 D. Nieto , J. Aleksić , J. A. Barrio , J. L. Contreras , M. Doro , S. Lombardi , N. Mirabal , A. Moralejo , S. Pardo , J. Rico , F. Zandanel

The nature of dark matter remains one of the key science questions. Weakly Interacting Massive Particles (WIMPs) are among the best motivated particle physics candidates, allowing to explain the measured dark matter density by employing…

高能物理 - 唯象学 · 物理学 2018-08-27 Torsten Bringmann , Joakim Edsjo , Paolo Gondolo , Piero Ullio , Lars Bergstrom

Astronomical observations from small galaxies to the largest scales in the universe can be consistently explained by the simple idea of dark matter. The nature of dark matter is however still unknown. Empirically it cannot be any of the…

核实验 · 物理学 2013-11-26 Paolo Gondolo

Despite mounting evidence that dark matter (DM) exists in the Universe, its fundamental nature remains unknown. We present sensitivity estimates to detect DM particles with a future very-high-energy ($\gtrsim$ TeV) wide field-of-view…

高能天体物理现象 · 物理学 2019-12-24 Aion Viana , Harm Schoorlemmer , Andrea Albert , Vitor de Souza , J. Patrick Harding , Jim Hinton

The Lightest Supersymmetric Particle (LSP) makes a good Dark Matter (DM) candidate, since its relic density quite naturally comes out close to the cosmologically required value. This is true even in minimal Supergravity models with…

高能物理 - 唯象学 · 物理学 2009-09-25 M. Drees

Observations of diffuse Galactic gamma ray emission (DGE) by the Fermi Large Area Telescope (LAT) allow a detailed study of cosmic rays and the interstellar medium. However, diffuse emission models of the inner Galaxy underpredict the…

宇宙学与河外天体物理 · 物理学 2014-04-03 Lin F. Yang , Joseph Silk , Alexander S. Szalay , Rosemary F. G. Wyse , Brandon Bozek , Piero Madau

Dark Matter (DM) remains poorly probed on critical, sub-galactic scales, where predictions from different models diverge in terms of abundance and density profiles of halos. Gravitational lens systems on milli-arcsecond scales…

The difficult task of observing Dark Matter subhaloes is of paramount importance since it would constrain Dark Matter particle properties (cold or warm relic) and confirm once again the longstanding $\Lambda$CDM model. In the near future…

宇宙学与河外天体物理 · 物理学 2019-10-16 Marco Chianese

Dark matter (DM) occupies the majority of matter content in the universe and is probably cold (CDM). However, modifications to the standard CDM model may be required by the small-scale observations, and DM may be self-interacting (SIDM) or…

宇宙学与河外天体物理 · 物理学 2022-07-27 Xiao Guo , Youjun Lu