Scientists investigating mysterious dark matter

UH scientists investigating mysterious dark matter
DarkSide-50 time projection chamber interior at Gran Sasso National Laboratory in Italy. Credit: DarkSide Collaboration

University of Houston scientists are helping to develop a technology that could hold the key to unraveling one of the great mysteries of science: what constitutes dark matter? Scientists believe dark matter makes up 85 percent of the matter in the universe, but nobody actually knows what dark matter is.

"If we are the experiment that finds dark , we can change the fundamental understanding of the universe as we know it," said UH assistant professor Andrew Renshaw. "We can really start to understand the fundamental properties of the universe - how we got from the big bang to where we are, and what the future holds."

Renshaw and professor Ed Hungerford are leading a team of physicists from the College of Natural Sciences and Mathematics in the DarkSide program, an international research collaboration seeking to detect dark matter in the form of weakly interacting massive particles (WIMPs). In principle, when WIMP particles collide with ordinary nuclei, extremely small, low-energy nuclear recoil would result. In very simple terms, the scientists are trying to build that can detect WIMPS by detecting this very tiny, but observable recoil.

The UH team is using the DarkSide program's first physics , DarkSide-50 (DS-50), located underground at the Gran Sasso National Laboratory in Central Italy. The team and their collaborators have improved the sensitivity of the DS-50 detector in recent years by switching from atmospheric argon to low-radioactivity , which was extracted from underground gas wells in Colorado. But a next-generation detector in development will take it even further.

UH scientists investigating mysterious dark matter
DarkSide-50 time projection chamber cryostat filled with liquid argon at Gran Sasso National Laboratory in Italy. Credit: DarkSide Collaboration

DarkSide-20k (DS-20k) is currently being constructed using similar components from the present DarkSide experiment. Whereas DS-50 holds about 9.5 gallons (50 kilograms) of low-radioactivity liquid argon, this new detector, DS-20k, will employ new readout technology and will be some 400 times larger, holding 3,800 gallons (20,000 kilograms) of liquid argon. The new experiment is expected to start acquiring data at the Gran Sasso National Laboratory in 2021.

This detector, said Hungerford, will push the search for WIMP dark matter to new levels of sensitivity, hopefully finding the elusive WIMP. Or, he said, it could demonstrate that dark matter is not a particle, since this technology has now proven capable of searching for types of dark matter other than WIMPs.

"Previously, if you wanted to look for a specific kind of dark matter, you really had to look for a specific kind of detector. Now with this liquid argon technology, it's really opening the door to using a single technology to search for a handful of different kinds of ," added Renshaw, who recently presented DarkSide findings at the UCLA Dark Matter Conference.

While Hungerford and Renshaw continue their research in Houston, three other members of the UH team are manning the day-to-day operations in Italy. Research associate Nicola Canci manages the DS-50 detector and monitors its performance.

"The cryogenic system keeping the in liquid phase needs to be monitored, and some operations are needed to allow for the good performances of the detector. Electronics are monitored. Signals coming from the detector are improved, if needed, and the quality of data is routinely checked," Canci said.


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Mar 15, 2018
There is evidence of dark matter every time a double-slit experiment is performed, as it is the medium that waves. What is mistaken for clumpy dark matter is actually the state of displacement of the dark matter. What is referred to geometrically as curved spacetime physically exists in nature as the state of displacement of the dark matter. The state of displacement of the dark matter is gravity.

Mar 15, 2018
There is evidence of dark matter every time a double-slit experiment is performed, as it is the medium that waves.
So the e/m field is a wave of the medium, not really a wave in the medium. Interesting.

Mar 16, 2018
How many billions must be spent before they begin to seek alternative answers. Although it is an endless supply of funding for faerie dust hunters.

Mar 16, 2018
Do any of the #physicscranks have a testable hypothesis explaining galaxy rotation curves, gravitational lensing, and galaxy cluster dynamics other than particle dark matter?

If not, then STFU and stop whining. We're testing particle dark matter as well as we can, and trying to come up with a testable extension to GRT as an alternative (so far with no more success than the particle dark matter experiments). That's all we can do. What the #physicscranks are doing is advocating doing nothing. And that's pretty stupid, I'd say.

Mar 16, 2018
There is evidence of dark matter every time a double-slit experiment is performed, as it is the medium that waves.
So the e/m field is a wave of the medium, not really a wave in the medium. Interesting.


e/m waves are waves in the 'stuff' that fills 'empty' space that is displaced by visible matter. Particles of visible matter move through and displace the dark matter, causing it to wave. Maxwell's displacement current is the physical displacement of the dark matter.

Mar 16, 2018
...Maxwell's displacement current is the physical displacement of the dark matter.
So that displaced dark matter is really electrical current? Am I in the right class?

Mar 16, 2018
That's all we can do. What the #physicscranks are doing is advocating doing nothing.


......and why not "do nothing"? There's no reason to do something unless the 21st Century data can be FALSIFIED. The researchers in the below link proves the reverse of zany ideas that DM exists at the centers of galaxies.

"New study suggests galactic bulge emissions not due to dark matter": https://phys.org/...ark.html

And that's pretty stupid, I'd say.
Yeah, you want to say that again?


Mar 16, 2018
...Maxwell's displacement current is the physical displacement of the dark matter.
So that displaced dark matter is really electrical current? Am I in the right class?


Yes.

"In several parts of this treatise an attempt has been made to explain electromagnetic phenomena by means of mechanical action transmitted from one body to another by means of a medium occupying the space between them. The undulatory theory of light also assumes the existence of a medium. We have now to shew that the properties of the electromagnetic medium are identical with those of the luminiferous medium." - Maxwell

The Michelson-Morley experiment did not disprove the aether. It provided evidence the notion of a stationary aether was incorrect.

http://hyperphysi...ist.html

"The result of the hypothesis of a stationary ether is thus shown to be incorrect." (A. A. Michelson, Am. J. Sci, 122, 120 (1881))"

EM waves are waves in DM

Mar 16, 2018
Do any of the #physicscranks have a testable hypothesis explaining galaxy rotation curves,

Yes #monopolecrank, rotation curve.
http://www.ptep-o...3-01.PDF
Theory fits observation just right.
gravitational lensing,

Check, no problems here.
http://www.plasma...sing.htm
galaxy cluster dynamics other than particle dark matter?

And finally yes, no faerie dust required;
Evolution of the Plasma Universe: II. The Formation of Systems of Galaxies
http://plasmauniv...S-II.pdf

I am all for real science ILO the fanciful faerie tales of the plasma ignoramuses.

Mar 16, 2018
The Michelson-Morley experiment did not disprove the aether. It provided evidence the notion of a stationary aether was incorrect.

"The result of the hypothesis of a stationary ether is thus shown to be incorrect." (A. A. Michelson, Am. J. Sci, 122, 120 (1881))"

EM waves are waves in DM


All you are saying is that time-space are the reason for the existence of DM.
LIGO observations would have detected any anomalies since it is in outer space.

As for aether, it died too many times to come back from the dead.

Mar 16, 2018
The Michelson-Morley experiment did not disprove the aether. It provided evidence the notion of a stationary aether was incorrect.

"The result of the hypothesis of a stationary ether is thus shown to be incorrect." (A. A. Michelson, Am. J. Sci, 122, 120 (1881))"

EM waves are waves in DM


All you are saying is that time-space are the reason for the existence of DM.
LIGO observations would have detected any anomalies since it is in outer space.

As for aether, it died too many times to come back from the dead.


LIGO's looking for the wrong 'stuff'. If you want evidence of dark matter close to Earth then perform a double-slit experiment as it is the medium that waves.

Wave-particle duality is a moving particle and its associated wave in the dark matter.

Mar 16, 2018
LIGO's looking for the wrong 'stuff'. If you want evidence of dark matter close to Earth then perform a double-slit experiment as it is the medium that waves.
I don't think LIGO is looking for evidence of dark matter close to anything.

Mar 17, 2018
LIGO's looking for the wrong 'stuff'. If you want evidence of dark matter close to Earth then perform a double-slit experiment as it is the medium that waves.
I don't think LIGO is looking for evidence of dark matter close to anything.


LIGO is attempting to detect gravitational waves. Instead of trying to detect gravitational waves, which are waves in the dark matter, physicists should just perform a double-slit experiment as it is the dark matter that waves.

Mar 17, 2018
That's all we can do. What the #physicscranks are doing is advocating doing nothing.
...and why not "do nothing"? There's no reason to do something unless the 21st Century data can be FALSIFIED.
That's incorrect. Gathering more data to see whether a hypothesis can be substantiated is more important than falsification, since it can short-cut the process and save time and money.

This is typical of #physicscranks; they're afraid of experiments that might have positive results.
The researchers in the below link proves the reverse of zany ideas that DM exists at the centers of galaxies.
"New study suggests galactic bulge emissions not due to dark matter": https://phys.org/...ark.html
And that's pretty stupid, I'd say.
Yeah, you want to say that again?
Your evidence has nothing to do with your thesis. You're just throwing something out there to try to divert the conversation. Which is, as I said, stupid.

Mar 17, 2018
LIGO is attempting...
This is typical of #physicscranks; they're afraid of experiments that might have positive results.
Case in point? So is there something to fear about gravitational waves? Maybe the discovery of a new type of dark matter (LOL)? What would be wrong with that?

Mar 17, 2018
LIGO is attempting...
This is typical of #physicscranks; they're afraid of experiments that might have positive results.
Case in point? So is there something to fear about gravitational waves? Maybe the discovery of a new type of dark matter (LOL)? What would be wrong with that?


Gravitational waves are waves in the dark matter. Dark matter is the medium for gravitational waves. The wave of wave-particle duality is also a wave in the dark matter. Dark matter is the medium for the wave of wave-particle duality. It's the same stuff that waves for both gravitational waves and the wave of wave-particle duality. Particles of ordinary matter causing the dark matter to wave relates general relativity and quantum mechanics.

Mar 17, 2018
That's incorrect. Gathering more data to see whether a hypothesis can be substantiated is more important than falsification, since it can short-cut the process and save time and money.
.....oh, well, if that's the route you want to go, here's the perfect example of gathering more data for testing a hypothsis in the form of OBSERVATIONAL EVIDENCE:

http://ircamera.a...nter.htm

.........however, when it comes to substantiating the falsification of the existence of a massive black hole at the center of the galaxy, what do you do? You fall back on 19th Century TUG math in an attempt to create FALSIFICATION for what can't be OBSERVED in photo frame 7 in the above pictures (not drawings) of the exact center of the galaxy.

Yeah, Schneibo, 19th Century aether, 19th Century Black Hole TUG math, 1930's zany Zwicky cosmic fairy dust (dark matter), all fantasies that have nothing to do with SCIENCE.

Mar 23, 2018
Dark matter has filled many brains of those who have no idea what the real thing is and how it arises. Such a thing must be caused by an unknown disease that destroys consciousness, and awareness is the power to recognize truth and to find out the true causes of the phenomenon. Beware of this dangerous infectious disease. !! And you will become part of dark matter, if you believe that this miracle exists.

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