Tag: Standard Model
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Molecules of pear-shaped atomic nuclei bear fruit
A new ISOLDE study of molecules containing pear-shaped atomic nuclei helps shape future research aimed at testing fundamental symmetries of nature
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Clocking nature’s heaviest elementary particle
The CMS collaboration has tested whether top quarks play by Einstein’s rules all day and all night
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The measurement of a lifetime
New ATLAS measurement of the lifetime of the electrically neutral beauty meson is the most precise to date
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NA62 experiment at CERN observes ultra-rare particle decay
In the Standard Model of particle physics, the odds of this decay occurring are less than one in 10 billion
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CMS experiment at CERN weighs in on the W boson mass
The eagerly awaited result is the most precise measurement of the W mass made at the LHC so far, and is in line with the prediction from the Standard Model of particle physics
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ATLAS probes uncharted territory with LHC Run 3 data
The ATLAS collaboration has released its first results from searches for new physics phenomena conducted with data from Run 3 of the LHC
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The CMS experiment at CERN measures a key parameter of the Standard Model
With this measurement the LHC is again demonstrating its ability to provide very high-precision measurements and bringing new insights into an old mystery
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LHCb tightens precision on key measurements of matter–antimatter asymmetry
The LHCb collaboration’s new measurements of matter–antimatter asymmetry in decays of beauty particles are the most precise yet of their kind
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LHC experiments see first evidence of a rare Higgs boson decay
The ATLAS and CMS collaborations have joined forces to establish the first evidence of the rare decay of the Higgs boson into a Z boson and a photon
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LHCb brings leptons into line
Simultaneous measurements of rare B-meson decays using the full LHC Run 1 and 2 data samples agree with the predictions of the Standard Model, superseding previous results that had indicated intriguing departures from the 50-year old theory