Results 311 to 320 of about 902,528 (341)

Simplified models for dark matter interacting with quarks

, 2013
A bstractWe investigate simplified models in which dark matter particles, taken to be either Dirac or Majorana fermions, couple to quarks via colored mediators.
Anthony Difranzo   +3 more
semanticscholar   +1 more source

Decoding Dark Matter: Specialized Sparse Autoencoders for Interpreting Rare Concepts in Foundation Models

North American Chapter of the Association for Computational Linguistics
Understanding and mitigating the potential risks associated with foundation models (FMs) hinges on developing effective interpretability methods. Sparse Autoencoders (SAEs) have emerged as a promising tool for disentangling FM representations, but they ...
Aashiq Muhamed   +2 more
semanticscholar   +1 more source

Euclid preparation. LVI. Sensitivity to non-standard particle dark matter models

Astronomy & Astrophysics
The mission of the European Space Agency will provide weak gravitational lensing and galaxy clustering surveys that can be used to constrain the standard cosmological model and its extensions, with an opportunity to test the properties of dark matter ...
Euclid Collaboration J. Lesgourgues   +499 more
semanticscholar   +1 more source

Euclid preparation. LXIII. Simulations and non-linearities beyond Lambda cold dark matter. 2. Results from non-standard simulations

Astronomy & Astrophysics
The mission will measure cosmological parameters with unprecedented precision. To distinguish between cosmological models, it is essential to generate realistic mock observables from cosmological simulations that were run in both the standard Λ-cold-dark-
Euclid Collaboration G. R'acz   +499 more
semanticscholar   +1 more source

Euclid preparation. Simulations and non-linearities beyond Lambda cold dark matter. I. Numerical methods and validation

Astronomy & Astrophysics
To constrain cosmological models beyond Lambda CDM, the development of the analysis pipeline requires simulations that capture the non-linear phenomenology of such models.
Euclid Collaboration J. Adamek   +499 more
semanticscholar   +1 more source

Possible interaction between baryons and dark-matter particles revealed by the first stars

Nature, 2018
The cosmic radio-frequency spectrum is expected to show a strong absorption signal corresponding to the 21-centimetre-wavelength transition of atomic hydrogen around redshift 20, which arises from Lyman-α radiation from some of the earliest stars.
R. Barkana
semanticscholar   +1 more source

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