Showing result 1 - 5 of 69 essays containing the words Dark matter.

1. ## 1. Effects of inelastic dark matter in the early Universe

University essay from KTH/Fysik

Keywords : ;

2. ## 2. Test setup for LDMX HCal readout

University essay from Lunds universitet/Partikelfysik; Lunds universitet/Fysiska institutionen

Abstract : It is evident from cosmological observations such as the Cosmic Microwave Background, and the motion of galaxies, that the universe consists of approximately 5 times more mass than visible matter can account for. The Light Dark Matter eXperiment (LDMX) will take a unique approach in its hunt for dark matter; it will look for missing momentum signals in electron collisions with a Tungsten target, and will be looking in the sub GeV energy range for evidence of dark matter interactions. READ MORE

3. ## 3. An introduction to some ordinary differential equations governing stellar structures

University essay from Lunds universitet/Matematik (naturvetenskapliga fakulteten)

Keywords : Mathematics and Statistics;

Abstract : The Lane-Emden equation is a non-linear differential equation governing the equilibrium of polytropic stationary self-gravitating, spherically symmetric star models; $${\frac {1}{\xi ^{2}}}{\frac {d}{d\xi }}\left({\xi ^{2}{\frac {d\theta }{d\xi }}}\right)+\theta ^{n}=0.$$ In the isothermal cases we have the Chandrasekhar equation: $${\frac {1}{\xi ^{2}}}{\frac {d}{d\xi }}\left({\xi ^{2}{\frac {d\psi}{d\xi }}}\right)-e^{-\psi}=0$$ After having derived these models, we will go through all cases for which analytic solutions are achievable. READ MORE

4. ## 4. Study of Dark Matter Models in Astrophysics and Particle Physics

University essay from Lunds universitet/Partikelfysik; Lunds universitet/Fysiska institutionen

Keywords : Physics and Astronomy;

Abstract : From astrophysical and cosmological observations, it is known that most of the matter in the Universe is dark. This matter could be explainable by new particles, not included in the Standard Model of Particle Physics. READ MORE

5. ## 5. The astronomical consequences of primordial black holes

University essay from Lunds universitet/Astronomi

Keywords : Physics and Astronomy;

Abstract : In the radiation or early matter dominated eras of the Universe, there is a theoretical possibility for the formation of black holes (BHs). These primordial black holes (PBHs) have been thought of as a possible candidate for dark matter (DM), and an attractive one at that as it would explain DM using only baryonic physics. READ MORE