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First Collisions At the LHC

Posted by CmdrTaco on from the make-sure-the-world-is-still-here dept.

An anonymous reader writes "At 1:06 p.m. Central European Summer Time (CEST) today, the first protons collided at 7 TeV in the Large Hadron Collider. These first collisions, recorded by the LHC experiments, mark the start of the LHC's research program."

8 of 256 comments (clear)

  1. First events by mu22le · · Score: 5, Informative

    One of the first events seen in Atlas:
    http://imgur.com/ugwnl.png

    and in CMS:
    http://cmsdoc.cern.ch/events/snapshotA.png

    1. Re:First events by mu22le · · Score: 4, Informative

      Here are the Atlas official plots:
      http://atlas.web.cern.ch/Atlas/public/EVTDISPLAY/events.html

      CMS:
      http://cms.web.cern.ch/cms/Media/Images/EventDisplays/7_0TeVCollisions/index.html

      LHCb:
      http://cdsweb.cern.ch/record/1255400

      Alice:
      http://cdsweb.cern.ch/record/1255398?ln=en

      and finally all the CERN public photos:
      http://cdsweb.cern.ch/collection/LHC%20First%20Physics%20Photos

  2. Resources by tist · · Score: 5, Informative

    You can see the beam status here: http://op-webtools.web.cern.ch/op-webtools/vistar/vistars.php?usr=LHC1 and follow the webcast here http://webcast.cern.ch/lhcfirstphysics/. The webcast screen also has links to each of the experiments.

    1. Re:Resources by L4t3r4lu5 · · Score: 2, Informative

      Cyriak.co.uk was filtered where I work for cartoon violence (school). Don't know what they're doing with LHC feeds, if indeed they are there.

      --
      Finally had enough. Come see us over at https://soylentnews.org/
  3. Re:Why not "strangelets"? by impaledsunset · · Score: 2, Informative

    Strangelets are hypothetical, nobody has ever seen, so they might not exist at all. LHC is less likely to produce strangelets than RHIC, but I can't read the paper to see why, but it has something to do with the different nature of the collisions. The energies are too low for production of micro black holes, though.

  4. Re:We hit 7 TeV, but how much more to go? by John+Hasler · · Score: 4, Informative

    Nothing is equivalent to the "big bang". The "big bang" is a singularity. 14TeV isn't even equivalent to some of the natural collisions that happen in the upper atmosphere.

    --
    Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
  5. Re:This may be the biggest experiment of all by Kierthos · · Score: 5, Informative

    It's turtles all the way down.

    --
    Mr. Hu is not a ninja.
  6. Re:We hit 7 TeV, but how much more to go? by JohnFluxx · · Score: 5, Informative

    There isn't really a limit. You just get closer and closer to t=0.
    The big bang timeline goes roughly (listing the time when the mentioned period _ends_):

    10^-43 seconds - Planck epoch - this is where we need string theory etc. The universe is expanding really really really fast. Frigging fast. This is called 'inflation'
    10^-36 seconds - Grand unification epoch - this is where gravity starts to become seperate from the other forces
    10^-12 seconds - The really-really-really-frigging-fast inflation is now over. We've now just got the normal expansion.
        --- WE ARE HERE WITH THE LHC ---
    10^-6 seconds - Higgs particles are now able to give particles mass. But too hot for quarks to combine into protons etc.
    1 second - Quarks have now formed into protons etc
    10 seconds - anti-matter is now annihalted somehow. All the protons etc have been created.
    20 minutes - Hydrogen etc is formed. We now have real atoms! (Nucleosynthesis)