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- Lawrence Berkeley National LaboratoryUS199 papers
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8 papers · 2 filters
A Global Fit of Non-Relativistic Effective Dark Matter Operators Including Solar Neutrinos
Neal P. Avis Kozar, Pat Scott, Aaron C. Vincent
We perform a global fit of dark matter interactions with nucleons using a non-relativistic effective operator description, considering both direct detection and neutrino data. We e…
The Effect of Multiple Cooling Channels on the Formation of Dark Compact Objects
Joseph Bramante, Melissa Diamond, J. Leo Kim
A dissipative dark sector can result in the formation of compact objects with masses comparable to stars and planets. In this work, we investigate the formation of such compact obj…
Dark Matter-Induced Baryonic Feedback in Galaxies
Javier F. Acevedo, Haipeng An, Yilda Boukhtouchen +3
We demonstrate that non-gravitational interactions between dark matter and baryonic matter can affect structural properties of galaxies. Detailed galaxy simulations and analytic es…
The Morphology of Exciting Dark Matter and the Galactic 511 keV Signal
Christopher V. Cappiello, Michael Jafs, Aaron C. Vincent
We study the morphology of the 511 keV signal that could be produced by exciting dark matter (XDM) in the Milky Way. In this model, collisions between dark matter particles excite…
Multimessenger Constraints on Radiatively Decaying Axions from GW170817
Melissa Diamond, Damiano F. G. Fiorillo, Gustavo Marques-Tavares +2
The metastable hypermassive neutron star produced in the coalescence of two neutron stars can copiously produce axions that radiatively decay into ~MeV photons. T…
Axion-sourced fireballs from supernovae
Melissa Diamond, Damiano F. G. Fiorillo, Gustavo Marques-Tavares +1
New feebly interacting particles would emerge from a supernova core with 100-MeV-range energies and produce -rays by subsequent decays. These would contribute to the diffuse cos…