The CMS collaboration at the Large Hadron Collider (LHC) has carried out a new test on a model that was developed to explain the tiny mass of neutrinos, electrically neutral particles that change type as they travel through ...
General Physics
May 4, 2022
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301
The CMS collaboration at the Large Hadron Collider (LHC) has performed the most accurate ever measurement of the mass of the top quark—the heaviest known elementary particle. The latest CMS result estimates the value of ...
Quantum Physics
Apr 19, 2022
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642
One of the major challenges in particle physics is how to interpret large data sets that consist of many different observables in the context of models with different parameters.
Quantum Physics
Mar 22, 2022
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156
The Higgs boson lives for an extremely short time before it transforms, or "decays," into other particles. It is through the detection of some of these decay products that the unique particle has first been—and continues ...
General Physics
Feb 24, 2022
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398
The discovery of the Higgs boson was a landmark in the history of physics. It explained something fundamental: how elementary particles that have mass get their masses. But it also marked something no less fundamental: the ...
General Physics
Jan 13, 2022
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73
The Higgs boson doesn't stick around for long. Once it is created in particle collisions, the famed particle lives for a mere less than a trillionth of a billionth of a second or, more precisely, 1.6 x 10-22 seconds. According ...
Quantum Physics
Dec 3, 2021
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433
Since discovering the Higgs boson in 2012, the ATLAS Collaboration at CERN has been working to understand its properties. One question in particular stands out: why does the Higgs boson have the mass that it does? Experiments ...
General Physics
Jun 30, 2021
2
185
Discovering the Higgs boson in 2012 was only the start. Physicists immediately began measuring its properties, an investigation that is still ongoing as they try to unravel if the Higgs mechanism is realized in nature as ...
General Physics
May 21, 2021
0
363
The standard model of particle physics encapsulates our current knowledge of elementary particles and their interactions. The standard model is not complete; for example, it does not describe observations such as gravity, ...
General Physics
Apr 5, 2021
4
144
Physicists at CERN's Large Hadron Collider (LHC) are on the hunt for physics phenomena beyond the standard model. Some theories predict an as-yet undiscovered particle could be found in the form of a new resonance (a narrow ...
General Physics
Nov 3, 2020
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338
