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CIRCLE WITH A DOT

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  3. In case you missed it, new particle just dropped.

In case you missed it, new particle just dropped.

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  • diazona@techhub.socialD diazona@techhub.social

    @skyglowberlin @_thegeoff Oh yeah that's a good point. That's probably part of why I don't mind "strange" and "charm", too: the names have little historical lessons about their discoveries embedded in them. "Truth" and "beauty" on the other hand always felt completely arbitrary to me.

    skyglowberlin@fediscience.orgS This user is from outside of this forum
    skyglowberlin@fediscience.orgS This user is from outside of this forum
    skyglowberlin@fediscience.org
    wrote last edited by
    #16

    @diazona @_thegeoff I remember "strange particles", but I don't remember ever hearing an explanation for where "charm" came from.

    I just looked it up on Wikipedia, and πŸ™„

    Since up and down are also arbitrary, "strange" is the only name of the six that I think is reasonable πŸ˜‚

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    • _thegeoff@mastodon.social_ _thegeoff@mastodon.social

      For non physics types, the quark names "up, down, charm, strange, top and bottom" are completely arbitrary and mean nothing, they're just placeholder names. Which is annoying, cos top and bottom were originally truth and beauty, which I prefer.
      The also come in colours, and are far, far, far smaller than the wavelength of visible light. Again, an arbitrary name.
      Lesson to all you physics coders, dumb variable names can stick if you're unlucky. Don't predict the "YourMomHadron".

      lisyarus@mastodon.gamedev.placeL This user is from outside of this forum
      lisyarus@mastodon.gamedev.placeL This user is from outside of this forum
      lisyarus@mastodon.gamedev.place
      wrote last edited by
      #17

      @_thegeoff I don't think colours are _entirely_ arbitrary though: afaik they are related to SU(3) irreps, so there are 3 basis states, and we have 3 coloured sensors in eyes, so...

      But yeah, it's just that 3 equals 3 and nothing deeper

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      • _thegeoff@mastodon.social_ _thegeoff@mastodon.social

        In case you missed it, new particle just dropped. The LHC has confirmed (and in ridiculous accuracy) the existence of a heavier version of the proton.
        A proton is made of 3 quarks, up/up/down. This new particle is made of charm/charm/down, where the charm quark is basically the same as the up, just heavier.
        So not groundbreaking like finding supersymmetric particles, but still cool. Further confirmation that the standard model of particle physics is reasonable.
        https://home.cern/news/news/physics/lhcb-collaboration-discovers-new-proton-particle

        laprice@beige.partyL This user is from outside of this forum
        laprice@beige.partyL This user is from outside of this forum
        laprice@beige.party
        wrote last edited by
        #18

        @_thegeoff I'm sorry but since it does not yet have an official name; we'll be referring to it as the "Chonk Proton" for now.

        jeremiahfieldhaven@mastodon.gamedev.placeJ 1 Reply Last reply
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        • laprice@beige.partyL laprice@beige.party

          @_thegeoff I'm sorry but since it does not yet have an official name; we'll be referring to it as the "Chonk Proton" for now.

          jeremiahfieldhaven@mastodon.gamedev.placeJ This user is from outside of this forum
          jeremiahfieldhaven@mastodon.gamedev.placeJ This user is from outside of this forum
          jeremiahfieldhaven@mastodon.gamedev.place
          wrote last edited by
          #19

          @laprice @_thegeoff Shortened to 'chonkon' of course.

          laprice@beige.partyL 1 Reply Last reply
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          • jeremiahfieldhaven@mastodon.gamedev.placeJ jeremiahfieldhaven@mastodon.gamedev.place

            @laprice @_thegeoff Shortened to 'chonkon' of course.

            laprice@beige.partyL This user is from outside of this forum
            laprice@beige.partyL This user is from outside of this forum
            laprice@beige.party
            wrote last edited by
            #20

            @JeremiahFieldhaven @_thegeoff
            naturally

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            • _thegeoff@mastodon.social_ _thegeoff@mastodon.social

              In case you missed it, new particle just dropped. The LHC has confirmed (and in ridiculous accuracy) the existence of a heavier version of the proton.
              A proton is made of 3 quarks, up/up/down. This new particle is made of charm/charm/down, where the charm quark is basically the same as the up, just heavier.
              So not groundbreaking like finding supersymmetric particles, but still cool. Further confirmation that the standard model of particle physics is reasonable.
              https://home.cern/news/news/physics/lhcb-collaboration-discovers-new-proton-particle

              kimlockhartga@beige.partyK This user is from outside of this forum
              kimlockhartga@beige.partyK This user is from outside of this forum
              kimlockhartga@beige.party
              wrote last edited by
              #21

              @_thegeoff This is really cool.

              _thegeoff@mastodon.social_ 1 Reply Last reply
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              • kimlockhartga@beige.partyK kimlockhartga@beige.party

                @_thegeoff This is really cool.

                _thegeoff@mastodon.social_ This user is from outside of this forum
                _thegeoff@mastodon.social_ This user is from outside of this forum
                _thegeoff@mastodon.social
                wrote last edited by
                #22

                @kimlockhartga Yup. A lot of the stuff coming out of the LHC post-Higgs tends to fail to ignite popular curiosity, even though it's essentially part of the same model. But this being directly relatable to high school physics gives brownie points!

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                • _thegeoff@mastodon.social_ _thegeoff@mastodon.social

                  In case you missed it, new particle just dropped. The LHC has confirmed (and in ridiculous accuracy) the existence of a heavier version of the proton.
                  A proton is made of 3 quarks, up/up/down. This new particle is made of charm/charm/down, where the charm quark is basically the same as the up, just heavier.
                  So not groundbreaking like finding supersymmetric particles, but still cool. Further confirmation that the standard model of particle physics is reasonable.
                  https://home.cern/news/news/physics/lhcb-collaboration-discovers-new-proton-particle

                  chrst@lethallava.landC This user is from outside of this forum
                  chrst@lethallava.landC This user is from outside of this forum
                  chrst@lethallava.land
                  wrote last edited by
                  #23

                  @_thegeoff@mastodon.social TIL:
                  - CERN is a TLD
                  - this is not a shitpost and charm quarks are real.

                  1 Reply Last reply
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                  • _thegeoff@mastodon.social_ _thegeoff@mastodon.social

                    In case you missed it, new particle just dropped. The LHC has confirmed (and in ridiculous accuracy) the existence of a heavier version of the proton.
                    A proton is made of 3 quarks, up/up/down. This new particle is made of charm/charm/down, where the charm quark is basically the same as the up, just heavier.
                    So not groundbreaking like finding supersymmetric particles, but still cool. Further confirmation that the standard model of particle physics is reasonable.
                    https://home.cern/news/news/physics/lhcb-collaboration-discovers-new-proton-particle

                    dr_rugby@mastodon.socialD This user is from outside of this forum
                    dr_rugby@mastodon.socialD This user is from outside of this forum
                    dr_rugby@mastodon.social
                    wrote last edited by
                    #24

                    What would be the spin? (In case you're wondering, I am an NMR spectroscopist 😁)

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                    • _thegeoff@mastodon.social_ _thegeoff@mastodon.social

                      In case you missed it, new particle just dropped. The LHC has confirmed (and in ridiculous accuracy) the existence of a heavier version of the proton.
                      A proton is made of 3 quarks, up/up/down. This new particle is made of charm/charm/down, where the charm quark is basically the same as the up, just heavier.
                      So not groundbreaking like finding supersymmetric particles, but still cool. Further confirmation that the standard model of particle physics is reasonable.
                      https://home.cern/news/news/physics/lhcb-collaboration-discovers-new-proton-particle

                      johncarlosbaez@mathstodon.xyzJ This user is from outside of this forum
                      johncarlosbaez@mathstodon.xyzJ This user is from outside of this forum
                      johncarlosbaez@mathstodon.xyz
                      wrote last edited by
                      #25

                      RE: https://mastodon.social/@_thegeoff/116246263654294961

                      Another particle has been found!

                      In fact the Large Hadron Collider has found 80 new particles in addition to the Higgs boson. All of these 80 are 'hadrons', collections of quarks and/or antiquarks held together by the strong force. We *expect* there to be bucket loads of these, since there are 6 kinds of quarks and many ways for them to stick together. By now, studying these is more like chemistry - the working out of possibilities offered by a more or less understood theory - than truly groundbreaking fundamental physics.

                      Still, particles are cool. Here's a list of the 80 hadrons found by the Large Hadron Collider:

                      Link Preview Image
                      New particles discovered at the LHC

                      favicon

                      (koppenburg.ch)

                      The most exciting are those made of 4 or 5 quarks, or 2 quarks and 2 antiquarks. Most hadrons are less fancy! Most are made of either 3 quarks (these are called 'baryons'), 3 antiquarks ('antibaryons'), or a quark and an antiquark ('mesons'). The newly discovered 'heavy proton' is a baryon made of two charm quarks and a down quark.

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