scholarly journals Superweakly interacting massive particle dark matter signals from the early Universe

2003 ◽  
Vol 68 (6) ◽  
Author(s):  
Jonathan L. Feng ◽  
Arvind Rajaraman ◽  
Fumihiro Takayama
Keyword(s):  
Dark Matter ◽  
Early Universe ◽  
Massive Particle ◽  
Particle Dark Matter

scholarly journals UV complete framework of freeze-in massive particle dark matter

2019 ◽  
Vol 99 (1) ◽  
Author(s):  
Anirban Biswas ◽  
Debasish Borah ◽  
Arnab Dasgupta
Keyword(s):  
Dark Matter ◽  
Massive Particle ◽  
Particle Dark Matter ◽  
Complete Framework

scholarly journals WEAKLY INTERACTING MASSIVE PARTICLE DARK MATTER AND FIRST STARS: SUPPRESSION OF FRAGMENTATION IN PRIMORDIAL STAR FORMATION

2012 ◽  
Vol 761 (2) ◽  
pp. 154 ◽  
Author(s):  
Rowan J. Smith ◽  
Fabio Iocco ◽  
Simon C. O. Glover ◽  
Dominik R. G. Schleicher ◽  
Ralf S. Klessen ◽  
...  
Keyword(s):  
Dark Matter ◽  
Star Formation ◽  
Massive Particle ◽  
First Stars ◽  
Weakly Interacting ◽  
Particle Dark Matter

scholarly journals An Introduction to Particle Dark Matter

Universe ◽  
2019 ◽  
Vol 5 (10) ◽  
pp. 213 ◽  
Author(s):  
Stefano Profumo ◽  
Leonardo Giani ◽  
Oliver F. Piattella
Keyword(s):  
Dark Matter ◽  
Structure Formation ◽  
Early Universe ◽  
Dark Matter Particle ◽  
Particle Dark Matter

We review the features of Dark Matter as a particle, presenting some old and new instructive models, and looking for their physical implications in the early universe and in the process of structure formation. We also present a schematic of Dark Matter searches and introduce the most promising candidates to the role of Dark Matter particle.

scholarly journals Dark matter freeze-in from semi-production

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Andrzej Hryczuk ◽  
Maxim Laletin
Keyword(s):  
Dark Matter ◽  
Early Universe ◽  
Cross Section ◽  
Thermal Equilibrium ◽  
Indirect Detection ◽  
Production Mechanism ◽  
Number Density ◽  
Matter Production ◽  
Relic Density ◽  
Standard Formalism

Abstract We study a novel dark matter production mechanism based on the freeze-in through semi-production, i.e. the inverse semi-annihilation processes. A peculiar feature of this scenario is that the production rate is suppressed by a small initial abundance of dark matter and consequently creating the observed abundance requires much larger coupling values than for the usual freeze-in. We provide a concrete example model exhibiting such production mechanism and study it in detail, extending the standard formalism to include the evolution of dark matter temperature alongside its number density and discuss the importance of this improved treatment. Finally, we confront the relic density constraint with the limits and prospects for the dark matter indirect detection searches. We show that, even if it was never in full thermal equilibrium in the early Universe, dark matter could, nevertheless, have strong enough present-day annihilation cross section to lead to observable signals.

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