Category: Article

  • 2.4 TeV Collisions

    On 14th December, just 3 weeks after its restart, the LHC collided 1.18TeV beams of protons in CMS for the first time.

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  • 900 GeV Collisions

    On 23rd November the LHC collided 450 GeV beams of protons for the first time (see here) but only for a short period as a trial.

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  • An exciting first day of LHC clean collisions for the Tracker!

    An exciting first day of LHC clean collisions for the Tracker!

    Today LHC delivered to CMS a total of about 5 hours of clean collisions and we have recorded about 11000 min bias BSC triggers.

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  • Full Tracker on for the first time with Beam

    Full Tracker on for the first time with Beam

    This morning between 8:20 and 8:50 for the first time the full Tracker (Strips and Pixel) was turned ON and successfully collected data in Global run with a quiet single beam running in LHC.

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  • First Tracks with the real LHC beams

    First Tracks with the real LHC beams

    TOB was turned ON today after LHC Opearation declared stable beams for a while.

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  • First LHC Beam1-Beam2 Collision events seen in the Tracker

    First LHC Beam1-Beam2 Collision events seen in the Tracker

    Only TOB was turned ON today after LHC Opearation declared stable beams for a while.

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  • Circulating Beam (20th November onwards)

    Following the “splash” events of 6th/7th November (see here) the time has come to circulate the proton beams all around the LHC.

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  • Splash Events (6th-7th November)

    On the weekend of 6th & 7th November the LHC beam was injected and arrived near the CMS experiment, before being “stopped” by a large amount of material known as a “collimator”.

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  • Resuming Cosmic runs with the Tracker – Animations

    Resuming Cosmic runs with the Tracker – Animations

    After further maintenance work on the detector here a few event display animations (make sure your Browser settings allow image animations and click on each image to animate them!).

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  • Resuming Cosmic runs with the Tracker

    Resuming Cosmic runs with the Tracker

    After further maintenance work on the detector here are 4 new cosmic events from run 119013

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