Results 21 to 30 of about 4,173,231 (371)

Ultra-light dark matter [PDF]

The Astronomy and Astrophysics Review, 2020
Ultra-light dark matter is a class of dark matter models (DM), where DM is composed by bosons with masses ranging from $$10^{-24}\, \mathrm {eV}< m < \mathrm {eV}$$ 10 - 24 eV < m < eV . These models have been receiving a lot of attention in the past few
Elisa G. M. Ferreira
semanticscholar   +1 more source

Constraints on dark matter annihilation from the Event Horizon Telescope observations of M87*

Journal of High Energy Physics, 2022
The fast developments of radio astronomy open a new window to explore the properties of Dark Matter (DM). The recent direct imaging of the supermassive black hole (SMBH) at the center of M87 radio galaxy by the Event Horizon Telescope (EHT) collaboration
Guan-Wen Yuan, Zhan-Fang Chen, Zhao-Qiang Shen, Wen-Qing Guo, Ran Ding, Xiaoyuan Huang, Qiang Yuan   +6 more
doaj   +1 more source

Global QCD analysis and dark photons

Journal of High Energy Physics, 2023
We perform a global QCD analysis of high energy scattering data within the JAM Monte Carlo framework, including a coupling to a dark photon that augments the Standard Model (SM) electroweak coupling via kinetic mixing with the hypercharge B boson.
N. T. Hunt-Smith, W. Melnitchouk, N. Sato, A. W. Thomas, X. G. Wang, M. J. White, on behalf of the Jefferson Lab Angular Momentum (JAM) collaboration   +6 more
doaj   +1 more source

Dark Matter Search Results from a One Ton-Year Exposure of XENON1T. [PDF]

Physical Review Letters, 2018
We report on a search for weakly interacting massive particles (WIMPs) using 278.8 days of data collected with the XENON1T experiment at LNGS. XENON1T utilizes a liquid xenon time projection chamber with a fiducial mass of (1.30±0.01)  ton, resulting in ...
E. Aprile, J. Aalbers, F. Agostini, M. Alfonsi, L. Althueser, F. Amaro, M. Anthony, F. Arneodo, L. Baudis, B. Bauermeister, M. Benabderrahmane, T. Berger, P. Breur, A. Brown, A. Brown, E. Brown, S. Bruenner, G. Bruno, R. Budnik, C. Capelli, J. Cardoso, D. Cichon, D. Coderre, A. Colijn, J. Conrad, J. Cussonneau, M. Decowski, P. de Perio, P. Di Gangi, A. Di Giovanni, S. Diglio, A. Elykov, G. Eurin, J. Fei, A. Ferella, A. Fieguth, W. Fulgione, A. Gallo Rosso, M. Galloway, F. Gao, M. Garbini, C. Geis, L. Grandi, Z. Greene, H. Qiu, C. Hasterok, E. Hogenbirk, J. Howlett, R. Itay, F. Joerg, B. Kaminsky, S. Kazama, A. Kish, G. Koltman, H. Landsman, R. Lang, L. Levinson, Q. Lin, S. Lindemann, M. Lindner, F. Lombardi, J. Lopes, J. Mahlstedt, A. Manfredini, T. Marrodán Undagoitia, J. Masbou, D. Masson, M. Messina, K. Micheneau, K. Miller, A. Molinario, K. Morå, M. Murra, J. Naganoma, K. Ni, U. Oberlack, B. Pelssers, F. Piastra, J. Pienaar, V. Pizzella, G. Plante, R. Podviianiuk, N. Priel, D. Ramírez García, L. Rauch, S. Reichard, C. Reuter, B. Riedel, A. Rizzo, A. Rocchetti, N. Rupp, J. D. dos Santos, G. Sartorelli, M. Scheibelhut, S. Schindler, J. Schreiner, D. Schulte, M. Schumann, L. Scotto Lavina, M. Selvi, P. Shagin, E. Shockley, M. Silva, H. Simgen, D. Thers, F. Toschi, G. Trinchero, C. Tunnell, N. Upole, M. Vargas, O. Wack, H. Wang, Z Wang, Y. Wei, C. Weinheimer, C. Wittweg, J. Wulf, J. Ye, Y. Zhang, T. Zhu   +119 more
semanticscholar   +1 more source

The Structure of cold dark matter halos [PDF]

, 1995
High resolution N-body simulations show that the density profiles of dark matter halos formed in the standard CDM cosmogony can be fit accurately by scaling a simple “universal” profile.
J. Navarro, C. Frenk, S. White
semanticscholar   +1 more source

SENSEI: Direct-Detection Results on sub-GeV Dark Matter from a New Skipper CCD. [PDF]

Physical Review Letters, 2020
We present the first direct-detection search for sub-GeV dark matter using a new ∼2-gram high-resistivity Skipper CCD from a dedicated fabrication batch that was optimized for dark matter searches.
Liron Barak, I. Bloch, M. Cababie, G. Cancelo, L. Chaplinsky, F. Chierchie, M. Crisler, A. Drlica-Wagner, R. Essig, J. Estrada, E. Etzion, G. Moroni, D. Gift, S. Munagavalasa, A. Orly, D. Rodrigues, A. Singal, M. S. Haro, L. Stefanazzi, J. Tiffenberg, S. Uemura, T. Volansky, T. Yu   +22 more
semanticscholar   +1 more source

Quasi-Periodic Pulsations in an M-Class Solar Flare

Universe, 2023
We have studied the quasi-periodic pulsations (QPPs) of the M2.3 flare that occurred in the active region NOAA 12172 on 23 September 2014. Through the fast Fourier transform (FFT) method, we decompose the flare light curves into fast- and slowly-varying ...
Jun Xu, Zongjun Ning, Dong Li, Fanpeng Shi   +3 more
doaj   +1 more source

Searching for Dark Matter with a Superconducting Qubit. [PDF]

Physical Review Letters, 2020
Detection mechanisms for low mass bosonic dark matter candidates, such as the axion or hidden photon, leverage potential interactions with electromagnetic fields, whereby the dark matter (of unknown mass) on rare occasion converts into a single photon ...
A. Dixit, S. Chakram, Kevin He, A. Agrawal, R. Naik, D. Schuster, A. Chou   +6 more
semanticscholar   +1 more source

Dark Matter Caustics [PDF]

The Identification of Dark Matter, 2000
Abstract: The late infall of cold dark matter onto an isolated galaxy such as our own produces flows with definite velocity vectors at any physical point in the galactic halo. It also produces caustics which are places where the dark matter density is very large. The outer caustics are topological spheres whereas the inner caustics are rings. The self‐
Pierre Sikivie, William H. Kinney
openaire   +5 more sources

A GeV-TeV particle component and the barrier of cosmic-ray sea in the Central Molecular Zone

Nature Communications, 2021
Galactic center is one of the most important cosmic-ray sources. Here, the authors show GeV-TeV cosmic ray density in the central molecular zone is lower than the cosmic ray sea component, suggesting presence of high energy particle accelerator at the ...
Xiaoyuan Huang, Qiang Yuan, Yi-Zhong Fan
doaj   +1 more source