Author: CMS Collaboration

  • Measurement of the tt-bar Production Cross Section in pp Collisions at 7 TeV in Lepton + Jets Events Using b-quark Jet Identification

    Measurement of the tt-bar Production Cross Section in pp Collisions at 7 TeV in Lepton + Jets Events Using b-quark Jet Identification

    Read the paper: TOP-11-003 The measured production rates of Top-antiTop pairs, where one lepton and four jets of particles is observed in the final state, show good agreement with Quantum Chromodynamics (QCD), the theory of the strong interaction.

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  • 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.

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  • HCAL Summer Test Beam Run

    HCAL Summer Test Beam Run

    This year’s HCAL test beam run in July was completely devoted to studies of hardware that will be used in the upcoming upgrades.

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  • New physics search with same- and opposite-charge di-leptons

    New physics search with same- and opposite-charge di-leptons

    High-energy collisions with final states that include leptons (electrons, muons or taus) have played major roles in the history of physics.

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  • CMS reaches 100 publications

    CMS reaches 100 publications

    CMS published its 100th paper on 3rd August.

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  • Schedule for Lepton-Photon approvals

    Schedule for Lepton-Photon approvals

    Once more a reminder of the Lepton-Photon approvals, which will start in less than a week from now.

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  • Art and sub-atomic particles to collide at CERN

    CERN, focus of research into the Big Bang and what makes the universe tick, on Thursday announced a new program — fusing science with art to encourage painting and music inspired by the wonders of the cosmos.

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  • Measurement of the Differential Cross Section for Isolated Prompt Photon Production in pp Collisions at 7 TeV

    Measurement of the Differential Cross Section for Isolated Prompt Photon Production in pp Collisions at 7 TeV

    Read the paper: QCD-10-037 This paper extends CMS’s previous measurements of the production rates of isolated prompt photons.

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  • W and Double W

    The current data from the LHC show an effect which might, or might not, be the first indication of the presence of a Higgs boson.

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  • Higgs and statistics blogpost by Jon Butterworth

    This is a well-written piece exploring the need for more data and what possible interpretations there could be: http://www.guardian.co.uk/science/life-and-physics/2011/aug/06/1

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