Large Hadron Collider Measures Mass of the Top Quark With Unparalleled Accuracy
Precise knowledge of the top-quark mass is of paramount importance to understanding our world at the smallest scale. The Compact Muon Solenoid (CMS) collaboration at…
Particle Physics News
Particle Physics Breakthrough: Scientists Report First-of-Its-Kind Neutrino Measurement
For the first time, physicists extracted the detailed “energy-dependent neutrino-argon interaction cross section,” a key value for studying how neutrinos change their flavor Physicists studying…
Physicists Are Closing In on the Next Breakthrough in Particle Physics – And the Search for Our Own Origins
CUORE Team Places New Limits on the Bizarre Behavior of Neutrinos Physicists are closing in on the true nature of the neutrino — and might…
Particle Physics Shock: Most Precise Ever Measurement of W Boson Mass Differs From Standard Model Prediction
Most precise ever measurement of W boson mass shows tension with the Standard Model. After 10 years of careful analysis and scrutiny, scientists of the…
Engineering the Quantum States in Solid Materials Using Light
A POSTECH research team led by Professor Gil-Ho Lee and Gil Young Cho (Department of Physics) has developed a platform that can control the properties…
Homing In on the Higgs Boson’s Interaction With the Charm Quark at the Large Hadron Collider
New ATLAS and CMS analyses place tight limits on the strength of the Higgs boson’s interaction with the charm quark. Since the discovery of the…
ATLAS Experiment at Large Hadron Collider Seeks Out Unusual Signatures of Long-Lived Particles
Physicists at the ATLAS experiment are on the hunt for new, long-lived particles to help explain several outstanding mysteries of our Universe. Physicists at the…
Large Hadron Collider ATLAS and CMS Collaborations Chase the Invisible With the Higgs Boson
The collaborations have set stringent new bounds on the fraction of Higgs bosons transforming into invisible particles. The Higgs boson lives for an extremely short…
Unexpected Behavior of Hybrid Matter–Antimatter Atoms in Superfluid Helium Surprises Physicists at CERN
The result may open doors to several lines of research in particle physics and beyond. A hybrid matter–antimatter helium atom containing an antiproton, the proton’s…
Interior of Protons Exhibit Maximum Quantum Entanglement – May Share Common Physics With Black Holes
Fragments of the interior of a proton have been shown by scientists from Mexico and Poland to exhibit maximum quantum entanglement. The discovery, already confronted…
Largest Matter-Antimatter Asymmetry Observed at Large Hadron Collider
New results from the LHCb experiment on CP asymmetry in charmless three-body charged B meson decays include the largest CP asymmetry ever observed. CP asymmetry…
Probing Particle Collision Data for Clues to the Universe’s Origins
The excitement of making discoveries on the global stage is “so much bigger than the pressure,” says Yen-Jie Lee, particle physicist. When Yen-Jie Lee came…
Nuclear Reactor Helps Scientists Catch and Study “Ghost Particles”
‘Ghost particles’ research could bolster physics, nuclear nonproliferation. A nuclear reactor at an Illinois energy plant is helping University of Chicago scientists learn how to…
Refocusing Dark Matter Search: New Supercomputer Simulations Refine Axion Mass
Using adaptive mesh refinement, supercomputer simulation narrows axion mass range. Physicists searching — unsuccessfully — for today’s most favored candidate for dark matter, the axion,…
Axion Dark Matter: A Solution to a Great Physics Mystery?
Scientists from Durham University and Kings College London have presented a theoretical review in a new study strongly supporting the search for axion dark matter….
KATRIN Experiment Constrains the Mass of Mysterious Neutrino Particles With Unprecedented Precision
New world record: Neutrinos are lighter than 0.8 electron volts. Neutrinos are arguably the most fascinating elementary particles in our universe. In cosmology they play…
New World Record: “Ghost Particle” Experiment Limits Neutrino Mass With Unprecedented Precision
Neutrinos Are Lighter Than 0.8 Electronvolts New world record: KATRIN experiment limits neutrino mass with unprecedented precision. Neutrinos are arguably the most fascinating elementary particle…
Is the “Fine-Tuned Universe” an Illusion? Challenging Popular Arguments for a Multiverse
New FQXi report re-assesses claims that the cosmos is precisely tuned to foster life, challenging popular arguments for a multiverse. For decades physicists have been…
