Reduced Planck Constant vs Dark Matter?

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SUMMARY

The discussion centers around the Reduced Planck Constant, specifically its implications for the existence of matter and its relationship with dark matter. It is established that the Reduced Planck Constant, valued at approximately 1.054 571 817 x 10-34 J s, is not a threshold for matter to exist but rather a fundamental constant in quantum mechanics. The Higgs boson and axion, which are theorized to have zero spin, challenge the notion of energy states below this constant. The conversation concludes with clarification that Planck's constant does not denote an energy state, as its units are not energy units.

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  • Understanding of quantum mechanics principles
  • Familiarity with the concept of spin in particle physics
  • Knowledge of the Higgs boson and axion properties
  • Basic grasp of Planck's constant and its significance
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TL;DR
Is the Reduced Planck Constant the minimum frequently/movement/spin matter can have to exist?
Is the Reduced Planck Constant the minimum frequently/movement/spin matter can have to exist?

So if a matter were to spin lower than 1.054 571 817... x 10-34 J s, it when cease to exist?
Or would matter falling below the Reduced Planck Constant by classified as Dark Matter?
I heard that Higgs boson and axion have 0 spin. But are we sure that the Higgs boson and axion have 0 spin? that would mean 1.054 571 817... x 10-34 J s x 0 = 0. How could they exist with an energy state lower 1.054 571 817... x 10-34 J s? And what would be the lowest energy state possible for a particle to exist? And is it theoretically possible to reduce the 1/2 spin of fermions to 0 spin? what would happen?
 
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No.
No,
No.
No.
Yes.
See above.
Its mass.
No
See above.
 
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The response by @Vanadium 50 appears to cover it. The only note I would add is that Planck's constant does not represent an "energy state"; its units aren't units of energy.

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