Tag: Standard Model
The Standard Model of particle physics is a theory concerning the electromagnetic, weak, and strong nuclear interactions, which mediate the dynamics of the known subatomic particles. It was developed throughout the latter half of the 20th century, as a collaborative effort of scientists around the world.
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Studying beautiful flavour transitions
Studying rare processes is part and parcel of particle physics, providing stringent tests of the Standard Model. At the recent International Conference on High Energy Physics (ICHEP), the CMS and LHCb Collaborations presented their latest research into one such process: the transformation of a beauty quark into a strange quark, a muon and the oppositely charged antimuon (b→sμ+μ–). Flavour transitions – when
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CMS explores subtle matter–antimatter difference using beauty mesons
The CMS experiment uses its largest sample of beauty mesons to date to perform a high-precision test of subtle differences between matter and antimatter
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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