10 papers · 1 filter
The cosmic 6Li and 7Li problems and BBN with long-lived charged massive particles
Karsten Jedamzik
Charged massive particles (CHAMPs), when present during the Big Bang nucleosynthesis (BBN) era, may significantly alter the synthesis of light elements when compared to a standard…
An indirect dark matter search with diffuse gamma rays from the Galactic Centre with the Alpha Magnetic Spectrometer
A. Jacholkowska, G. Lamanna, E. Nuss +22
The detection of non-baryonic dark matter through its gamma-ray annihilation in the centre of our galaxy has been studied. The gamma fluxes according to different models have been…
Gravitino, Axino, Kaluza-Klein Graviton Warm and Mixed Dark Matter and Reionisation
Karsten Jedamzik, Martin Lemoine, Gilbert Moultaka
Stable particle dark matter may well originate during the decay of long-lived relic particles, as recently extensively examined in the cases of the axino, gravitino, and higher-dim…
The Evolution of Cosmic Magnetic Fields: From the Very Early Universe, to Recombination, to the Present
Robi Banerjee, Karsten Jedamzik
(abridged) A detailed examination of the evolution of stochastic magnetic fields between high cosmic temperatures and the present epoch is presented. A simple analytical model matc…
Neutralinos, Big Bang Nucleosynthesis and 6Li in Low-Metallicity Stars
Karsten Jedamzik
The synthesis of Li6 during the epoch of Big Bang nucleosynthesis (BBN) due to residual annihilation of dark matter particles is considered. By comparing the predicted Li6 to obser…
Did Something Decay, Evaporate, or Annihilate during Big Bang Nucleosynthesis?
Karsten Jedamzik
Results of a detailed examination of the cascade nucleosynthesis resulting from the putative hadronic decay, evaporation, or annihilation of a primordial relic during the Big Bang…