Tag: luminosity

  • Illuminating! Counting LHC collisions with CMS

    Illuminating! Counting LHC collisions with CMS

    In the LHC, groups of 100 billion protons collide 25 million times every second.

    Explore →

  • Reconstructing a multitude of particle tracks within CMS

    Reconstructing a multitude of particle tracks within CMS

    The LHC circulates protons inside its beam-pipes not in a continuous stream but in several very closely packed bunches.

    Explore →

  • New milestone – 10/fb recorded by CMS in 2012

    New milestone – 10/fb recorded by CMS in 2012

    CMS has just passed another major milestone, recording more than 10 inverse femtobarns of data at 8 TeV.

    Explore →

  • CMS 2012 data already exceed 2011 sample

    CMS 2012 data already exceed 2011 sample

    LHC has delivered 6.65 fb−1 of collisions to CMS in 2012 so far

    Explore →

  • 2011 proton collisions come to an end

    2011 proton collisions come to an end

    At about half-past five in the evening on Sunday, 30th October, an e-mail from Run Coordination to the CMS collaboration said: At 17:00 today the LHC dumped the last proton beams for the year to start the machine development period and to prepare for the ion running.

    Explore →

  • Summary of 2011 p-p running

    Summary of 2011 p-p running

    At 17:00 on Sunday 30th October the LHC dumped the last proton beams for the year to start the machine development period and to prepare for heavy ion running.

    Explore →

  • LHC delivers 5 inverse femtobarns

    LHC delivers 5 inverse femtobarns

    The LHC has now delivered 5 inverse femtobarns (fb−1) of data in 2011, of which CMS has collected 4.53 fb−1.

    Explore →

  • LHC delivers over 4 inverse femtobarns

    LHC delivers over 4 inverse femtobarns

    The LHC has now delivered over 4 inverse femtobarns (fb−1) of data in 2011, of which CMS has collected 3.7 fb−1.

    Explore →

  • LHC fill sets new luminosity record

    LHC fill sets new luminosity record

    Over the course of 16.5 hours ending Wednesday, Sept.

    Explore →

  • How does CMS measure Luminosity?

    How does CMS measure Luminosity?

    The number of events that an experiment observes is proportional to a quantity called the luminosity — a measure of how many collisions are occurring in the detector.

    Explore →