Could the Higgs Boson Lead Us to Dark Matter?

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The relevation of the Higgs boson ten years ago in the Large Hadron Collider was the climax of decades of work and the cooperation of 1000s of superior and fervent folks. It was the final piece needed to validate the standard model of particle physics as it now stands. There continue to be many phenomenal questions – such as, it appears like nothing in the standard model can clarify what dark matter is. So the relevation of the Higgs was not the finish of particle physics – but it could be the way forward. Many physicists believe that the secret to discovering the nuanced dark matter particle will come by learning the Higgs. In truth, the very first glamourous proof is already in.

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10 Comments:

  1. Everybody Draw Mohammed Day

    The REAL universe is made out of REAL MATTER. We are the ghosts. We call REAL MATTER dark matter because it doesn’t interact with us. Imagine how REAL MATTER beings feel like. They might not even know about the 4% of the universe.

  2. Hi very cool video :), though there are a few issues

    “The Standard Model predicts that up to 17% of Higgs bosons should decay into invisible neutrinos, so the null hypothesis would be for a branching fraction of 0.17”
    The Standard Model predicts that 0.1% of Higgs bosons should decay into invisible neutrinos. The 17% you get here is the expected exclusion limit from arxiv 1904.0510 (which is also outdated). This is not what we expect from the Standard Model, it is roughly what we expect the Standard Model prediction would have to be for us to see it, before we’ve looked at the data. It is also outdated, the current ATLAS expected limit is 11% from ATLAS-CONF-2020-052.

    “up to 26%”
    This is also outdated, the current observed limit is 11% as well from ATLAS-CONF-2020-052.

    “The error bars on this measurement are still large, and so we need to watch more Higgs bosons decay”

    The error bars are actually very small (the limit is 0.11^{0.04}_{0.03}), it’s just that’s what this is is an exclusion limit of Higgs->invisible, not a measurement of Higgs-> invisible. i.e. imagine you have a 10 sided die, but you don’t know what numbers are on the dice, and you can only roll it 5 times, but you want to know the smallest number on it. You roll it 5 times and you get the results 12,15,6,4,7. You can now say you have set an exclusion limit of 4, as the smallest number must be 4 or less than 4. You have not just measured it as 4 with high error bars. It’s the same thing here, we just see no evidence of higgs->invisible and this is the smallest amount we can exclude it by.

  3. Talking about particle accelerators always brings the scene from the Simpsons to mind where prof. Frink gets a printout after running some accelerator and says something like “you can tell your grandchildren you were here when humanity learned………that this accelerator is much too small to tell us anything important”

  4. Particles that interact only weekly, like the elusive Friday Fermion

  5. We already know what dark matter is, it’s Dust from the His Dark Materials universe

  6. *Question:* How can you tell the difference between a weakly interactive but abundant particle, and a rare but much more interactive one?

  7. 6:56 Zed’s dead baby

  8. would it not be conceivable that dark matter particles interact with each other via a “dark force” that does not interact with any of the know particles, even if the dark matter particles themselves were massless? if i understand it correctly their interactions via this force could give them mass, but make them undetectable because they do not interact with the higgs. or have we excluded this possibility because such a “dark force” would not be compatible with the distrubution of dark matter we observe?

  9. i remember staying up to watch the live announcement of higgs discovery and getting teary-eyed. has it really been 10 years?!

  10. Dark Matter is made up nonsense. Gravity does not cause galactic cohesion. Let the failed model die already.

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