Results 301 to 310 of about 689,866 (345)

Nanostructured Higher Manganese Silicide Thermoelectrics Developed by Mechanical Alloying Using High-Purity and Recycled Silicon. [PDF]

Nanomaterials (Basel)
Mangelis P, Georgiou K, Ioannou PS, Hadjipanteli S, Søiland AK, Kyratsi T.   +5 more
europepmc   +1 more source

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First Direct-Detection Results on Sub-GeV Dark Matter Using the SENSEI Detector at SNOLAB.

Physical Review Letters, 2023
We present the first results from a dark matter search using six Skipper-CCDs in the SENSEI detector operating at SNOLAB. We employ a bias-mitigation technique of hiding approximately 46% of our total data and aggressively mask images to remove ...
Prakruth Adari, I. Bloch, Ana M. Botti, M. Cababie, Gustavo I. Cancelo, B. A. Cervantes-Vergara, M. Crisler, M. Daal, Ansh Desai, A. Drlica-Wagner, R. Essig, Juan Estrada, E. Etzion, G. Moroni, S. Holland, Jonathan Kehat, Y. Korn, Ian Lawson, S. Luoma, A. Orly, S. Perez, D. Rodrigues, N. Saffold, S. Scorza, A. Singal, M. Sofo-Haro, L. Stefanazzi, K. Stifter, J. Tiffenberg, S. Uemura, Edgar Marrufo Villalpando, T. Volansky, Yikai Wu, T. Yu, T. Emken, Hailin Xu   +35 more
semanticscholar   +1 more source

Cold dark matter, hot dark matter, and their alternatives

, 2015
Marc S Siegar
semanticscholar   +2 more sources

Evaporating Primordial Black Holes, the String Axiverse, and Hot Dark Radiation.

Physical Review Letters, 2021
The search for primordial black holes (PBHs) with masses M≪M_{⊙} is motivated by natural early-Universe production mechanisms and that PBHs can be dark matter.
Marco Calzà, J. March-Russell, J. G. Rosa   +2 more
semanticscholar   +1 more source

Cold + Hot Dark Matter

Nuclear Physics B - Proceedings Supplements, 1995
The Cold + Hot Dark Matter (CHDM) model appears to require about 5 eV of neutrino mass in order to produce early enough galaxy formation. Recent experimental data suggests that this neutrino mass may be divided between two species of neutrinos, each with mass of about 2.4 eV.
Jon A. Holtzman, David O. Caldwell, Joel R. Primack, Anatoly Klypin   +3 more
openaire   +2 more sources

Light from darkness: history of a hot dark sector

Journal of Cosmology and Astroparticle Physics
We study a scenario in which the expansion of the Early Universe is driven by a hot hidden sector (HS) with an initial temperature T' that is significantly higher than that of the visible sector (VS), T' ≫ T.
R. Coy, Jean Kimus, M. Tytgat
semanticscholar   +1 more source

A Little Hot Dark Matter Matters

Science, 1998
Astronomers believe that a large part of the mass in the universe is "dark." But what is the nature of this unseen mass? In his research commentary, Primack discusses results reported in the same issue by Gawiser and Silk in which several models of dark matter were examined.
openaire   +2 more sources

Solar reflection of dark matter with dark-photon mediators

Journal of Cosmology and Astroparticle Physics
We consider the scattering of low-mass halo dark-matter particles in the hot plasma of the Sun, focusing on dark matter that interact with ordinary matter through a dark-photon mediator.
T. Emken, Rouven Essig, Hailin Xu
semanticscholar   +1 more source