Category: Physics
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Pushing the limits: rare four-muon decays of B mesons
CMS sets the world’s most stringent limits on B⁰ and B⁰ₛ decays into four muons.
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In search of new particles like the Higgs boson
Could there be more particles like the Higgs boson?
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Out of the loop: CMS advances in the search for a rare Higgs boson decay
CMS pushes the sensitivity frontier towards a measurement of the rare Higgs boson decay into a Z boson and a photon The 2012 discovery of the Higgs boson at CERN by CMS and ATLAS was a landmark achievement in the world of particle physics – but it was only the beginning.
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The curious case of quarkonia inside jets
The CMS experiment presents a first study of the ϒ mesons (bound states of a bottom quark and antiquark) produced within jets.
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From discovery to deep dive: The Higgs boson under the microscope
The CMS experiment uses data collected between 2022 and 2024 to perform a detailed study of Higgs boson production rates as a function of several variables.
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What’s inside quarks? CMS looks deeper
CMS probes the inside of quarks down to distances of 10–20 m – smaller than ever before – searching for potential more fundamental building blocks within them.
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Testing the heaviest quark’s interaction with light
The CMS Collaboration has completed the most precise measurement to date of top-quark production in association with a photon Using the full Run 2 dataset of the LHC and advanced machine learning techniques, the CMS Collaboration has delivered the most precise measurement to date of top quark production in association with a photon.
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CMS weighs the Higgs boson using flashes of light
The CMS experiment reports a new measurement of the Higgs boson mass in the decay into two photons, improving the precision of this result over earlier measurements by refining detector calibration and new analysis techniques.
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CMS observes rare Z boson pair production
For the first time, the CMS experiment has observed the rare electroweak production of two Z bosons in association with two jets.
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CMS observes another indication of a momentary union of the heaviest quarks, now in the lepton + jets final state
The CMS experiment provides the first confirmation of the excess observed in top quark-antiquark production that is consistent with the short-lived bound state – toponium – decaying to a lepton + jets final state.