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New form of matter may lie just beyond the periodic table

phys.org

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Re: New form of matter may lie just beyond the periodic table

#41

Post by GW150914 »

drak0n1c wrote: post #39
inetknght wrote: post #37

This page, or something it loads, is causing Firefox to use 100% CPU. Cryptocurrency malware, perhaps?

physorg has been a very popular site ever since 2004 and well respected for its compilation of scientific and technical papers. It's probably not malware - a more reasonable and common explanation for bad CPU performance is that one of the web or ad frameworks they use is poorly made.

Well respected? It takes in science (sometimes) and futurist hype (mostly) and belches out something resembling pop science. There are quite a few decent sites that turn papers and headlines into brief articles, but Physorg is not one of them. They are to science what clickbait is to news.

Re: New form of matter may lie just beyond the periodic table

#42

Post by princekolt »

The comments on the article poked at this question but the answers given there were not very clear for me, so I'll ask here: If this udQM is so stable, why didn't we find any of it in nature so far?

We certainly would know we don't understand this matter if we stumbled upon it... right?

Re: New form of matter may lie just beyond the periodic table

#43

Post by a1369209993 »

time-of-flight wrote: post #30
igravious wrote: post #4

Earlier quoted context omitted.

So what is the QM that is found in colliders? “When produced in a collider, quark matter typically decays within a fraction of a second into stable hadronic matter (with bound quarks).” Obviously not udQM, right?

The udQM they're talking about is in a very different regime than the quark matter produced at RHIC (Relativistic Heavy Ion Collider) and other colliders. In those, heavy ions are collided ultrarelativistically (speed just under C) and for a very brief instant, quarks and gluons are liberated from their confinement inside proton and neutrons to become quark-gluon plasma, or QGC. There are up and down quarks just like…

Link to diagram is broken, correct link here: https://en.wikipedia.org/wiki/File:Phases_of_Nuclear_Matter....

Apparently wikipedia uses some sort of horrible AJAX crap now; please check that your links work before posting them.

Re: New form of matter may lie just beyond the periodic table

#44

Post by gmueckl »

GW150914 wrote: post #41
drak0n1c wrote: post #39

Earlier quoted context omitted.

physorg has been a very popular site ever since 2004 and well respected for its compilation of scientific and technical papers. It's probably not malware - a more reasonable and common explanation for bad CPU performance is that one of the web or ad frameworks they use is poorly made.

Well respected? It takes in science (sometimes) and futurist hype (mostly) and belches out something resembling pop science. There are quite a few decent sites that turn papers and headlines into brief articles, but Physorg is not one of them. They are to science what clickbait is to news.

Do you have references to sites that are good in your opinion? I am looking for better ways to keep track of progress outside my area of expertise.

Re: New form of matter may lie just beyond the periodic table

#46

Post by teilo »

KayAar wrote: post #45

If this udQM with A above 300 were stable it would have been produced in neutron star collissions, along with other heavy elements such as Au, and there should be traces of it in the earth. So far no such udQM has been found.

Hard to find something when you are not looking for it, and don't know what it looks like.

Re: New form of matter may lie just beyond the periodic table

#47

Post by [deleted] »

vinceguidry wrote: post #5
igravious wrote: post #4

Earlier quoted context omitted.

So what is the QM that is found in colliders? “When produced in a collider, quark matter typically decays within a fraction of a second into stable hadronic matter (with bound quarks).” Obviously not udQM, right?

It could be non-stable udQM. Not all udQM is stable.

[deleted]

Re: New form of matter may lie just beyond the periodic table

#48

Post by teilo »

princekolt wrote: post #42

The comments on the article poked at this question but the answers given there were not very clear for me, so I'll ask here: If this udQM is so stable, why didn't we find any of it in nature so far? We certainly would know we don't understand this matter if we stumbled upon it... right?

Because it would be in such small and diffuse quantities that unless we were specifically looking for it, we likely wouldn't find it.

As for stumbling upon it, all our measurement techniques are calibrated to hadronic matter, so...

Re: New form of matter may lie just beyond the periodic table

#49

Post by Isinlor »

princekolt wrote: post #42

The comments on the article poked at this question but the answers given there were not very clear for me, so I'll ask here: If this udQM is so stable, why didn't we find any of it in nature so far? We certainly would know we don't understand this matter if we stumbled upon it... right?

We actually might have already stumbled upon it: https://www.centauri-dreams.org/2017/03/28/the-challenges-of...

Re: New form of matter may lie just beyond the periodic table

#50

Post by pavel_lishin »

drak0n1c wrote: post #39
inetknght wrote: post #37

This page, or something it loads, is causing Firefox to use 100% CPU. Cryptocurrency malware, perhaps?

physorg has been a very popular site ever since 2004 and well respected for its compilation of scientific and technical papers. It's probably not malware - a more reasonable and common explanation for bad CPU performance is that one of the web or ad frameworks they use is poorly made.

Citing their use of ad frameworks isn't an argument against malware.
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