What is the Nature of Dark Matter and How Are Scientists Trying to Discover It?

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  • #51
I'm working on a Dark Matter project for my professor currently. Here is the website I made for the project:

http://www.phys.washington.edu/groups/admx/home.html

This is a candidate for DM that would also solve some other stuff. Personally, based on what I've found out about the project, there is a very slim chance of actually detecting one of these Axions because of how little range we can scan and how big of a range these particles can theoretically occupy.

The sad part is that I was at a lunch thing where someone who works on WIMPs was going to give a colloquium later in the day and he said the same thing about his project and pretty much all DM projects: that the chance of detecting something is very slim because pretty much everybody is just taking a shot in the dark as to where to scan.

EDIT: I should note that the website isn't very theory heavy because we wanted laypersons to be able to understand it without getting scared off. The bulk of the theory is in the publications section. I myself had to do quite a bit of research before I fully understood what an Axion was and why it was important, and even now I only understand it qualitatively.
 
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  • #52

nikiforos, I request citations and references for all the variable numerical values you stated on post #39.

I presume that your numerical value of '3.5x10^78' from your 'equivalent rest mass' equation is equivalent to the number of protons in the 'observable' Universe?

I deduce that your parameters were derived from a observable steady-state Universe model and originated from the following equations:

Dark matter mass:
M_{dm} = \Omega_{dm} \cdot M_u
M_u - Universe mass

Universe composition: 0 \leq \Omega \leq 1
\Omega_{de} - dark energy
\Omega_{dm} - dark mass
\Omega_{bm} - baryonic mass

\rho_c = \Omega_{de} \rho_c + \Omega_{dm} \rho_c + \Omega_{bm} \rho_c
\boxed{\rho_c = \rho_c (\Omega_{de} + \Omega_{dm} + \Omega_{bm})}
\rho_c - Universe critical density
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