When a particle is transformed into its antiparticle and its spatial coordinates inverted, the laws of physics are required to stay the same—or so we thought. This symmetry—known as CP symmetry (charge conjugation and ...
General Physics
Jun 2, 2020
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374
For the first time, CMS physicists have investigated an effect called the "running" of the top quark mass, a fundamental quantum effect predicted by the Standard Model.
General Physics
Oct 8, 2019
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277
A new machine learning technology tested by an international team of scientists including MIT Assistant Professor Philip Harris and postdoc Dylan Rankin, both of the Laboratory for Nuclear Science, can spot specific particle ...
General Physics
Aug 20, 2019
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279
As the heaviest known particle, the top quark plays a key role in studies of fundamental interactions. Due to its short lifetime, the top quark decays before it can turn into a hadron. Thus, its properties are preserved and ...
General Physics
Aug 8, 2019
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185
As the heaviest known elementary particle, the top quark has a special place in the physics studied at the Large Hadron Collider (LHC) at CERN. Top quark-antiquark pairs are copiously produced in collisions recorded by the ...
General Physics
Aug 8, 2019
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126
Among the most intriguing particles studied by the ATLAS Experiment is the top quark. As the heaviest known fundamental particle, it plays a unique role in the Standard Model of particle physics, and perhaps in physics beyond ...
Quantum Physics
Jul 16, 2019
1
223
In 2018, the ATLAS and CMS Collaborations at CERN announced the observation of the production of the Higgs boson in association with a top-quark pair, known as "ttH" production. This result was the first observation of the ...
General Physics
Apr 9, 2019
0
254
Shortly after the start of Run 2 at the Large Hadron Collider (LHC) at CERN in June 2015, scientists from DESY and their colleagues from the experiments CMS and ATLAS have performed a first important test of the Standard ...
General Physics
Aug 21, 2015
21
214
(Phys.org) —Scientists working on the world's leading particle collider experiments have joined forces, combined their data and produced the first joint result from Fermilab's Tevatron and CERN's Large Hadron Collider (LHC), ...
General Physics
Mar 19, 2014
1
0
Scientists on the CDF and DZero experiments at the U.S. Department of Energy's Fermi National Accelerator Laboratory have announced that they have found the final predicted way of creating a top quark, completing a picture ...
General Physics
Feb 24, 2014
2
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