Physics News

Photon Collisions Produce Pairs of Weak-Force Carriers

A 2018 ATLAS event display consistent with the production of a pair of W bosons from two photons, where the W bosons decay into a muon and an electron (visible in the detector) and neutrinos (not detected). The muon path (red line) and electron path (yellow line) are shown. The electron deposits its energy in the electromagnetic calorimeter (yellow blocks). The many particles reconstructed in the Inner Detector are shown in orange. Top left corner shows that these particles do not originate from the same interaction and are thus attributed to additional proton-proton interactions. Image credit: ATLAS Collaboration / CERN.
Aug 11, 2020 by News Staff

Physicists from the ATLAS (A Toroidal LHC ApparatuS) Collaboration at CERN’s Large Hadron Collider have observed production of W bosons, elementary particles that carry the weak force, from photons colliding with photons. This new result confirms one of the main predictions of electroweak theory — that force carriers can interact with themselves — and provides new ways to probe it. A 2018 ATLAS event display consistent with the production...

read more...
Candidate event displays of a Higgs boson decaying into two muons as recorded by CMS (left) and ATLAS (right). Image credit: CERN.

Higgs Boson Seen Decaying to Two Muons

Aug 6, 2020 by News Staff

Physicists from the ATLAS (A Toroidal LHC ApparatuS) and CMS (Compact-Muon-Solenoid) collaborations at CERN’s Large Hadron Collider have reported strong...

X(6900), a tetraquark particle composed of two charm quarks and two charm antiquarks. Image credit: CERN.

CERN Physicists Discover Four-Charm-Quark Particle

Jul 3, 2020 by News Staff

Physicists from CERN’s LHCb Collaboration have discovered a new tetraquark particle, named X(6900), composed of two charm quarks and two charm antiquarks. X(6900),...

Branched flow pattern shown on top of the interference color pattern generated by weak white light, making it possible to observe the potential landscape together with the branched flow. Image credit: Patsyk et al, doi: 10.1038/s41586-020-2376-8.

Physicists Observe Branched Flow of Light

Jul 3, 2020 by News Staff

Physicists from the Technion-Israel Institute of Technology and the University of Central Florida have experimentally observed optical branched flow in...

An artist’s rendition of a mystery compact object in ‘mass gap’ found by LIGO and Virgo gravitational wave detectors. Image credit: LIGO / Caltech / MIT / R. Hurt, IPAC.

GW190814 Sheds Light on Mass Gap between Neutron Stars and Black Holes

Jun 25, 2020 by News Staff

The gravitational-wave signal GW190814, detected on August 14, 2019 by NSF’s Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo...

The world’s smallest molecular motor consists of a single acetylene rotor anchored to a chiral atomic cluster provided by a palladium-gallium surface that acts as a stator. Image credit: Empa.

Researchers Develop World’s Smallest Molecular Motor

Jun 24, 2020 by News Staff

A molecular motor developed by a team of researchers from Switzerland consists of just 16 atoms. The world’s smallest molecular motor consists of a single...

Photons emitted near rotating black holes encode quantum information that can be measured by actual quantum information technology. Image credit: Sci-News.com.

Physicists Verify Half-Century-Old Theory about Rotating Black Holes

Jun 24, 2020 by News Staff

Physicists from the University of Glasgow and the University of Arizona have experimentally verified a half-century-old theory that began as speculation...

Physicists Create New Isotope of Mendelevium

Jun 24, 2020 by News Staff

In an experiment performed at Lawrence Berkeley National Laboratory’s 88-inch cyclotron, a team of physicists successfully created a new isotope of the...

Event display of a candidate four-top-quark event, where two of the top quarks decay leptonically -- one with a resulting muon (red) and one with an electron (green) -- and two top quarks decay hadronically (green and yellow rectangles). The jets -- b-tagged jets -- are shown as yellow (blue) cones. Image credit: ATLAS Collaboration / CERN.

Physicists Find Strong Evidence of Four-Top Quark Production

Jun 18, 2020 by News Staff

Physicists from the ATLAS Collaboration CERN’s Large Hadron Collider have uncovered strong evidence of the production of four top quarks. This rare process...

Cosmic rays striking Venus’ atmosphere eject neutrons that gradually fly into space. As neutrons move to higher altitudes, more time passes, and more neutrons radioactively decay. MESSENGER counted the number of neutrons seen at various altitudes, allowing researchers to home in on where neutron numbers start falling off. Using models, researchers can then estimate the neutron lifetime. Image credit: Johns Hopkins Applied Physics Laboratory.

NASA’s MESSENGER Mission Carries Out Space-Based Measurements of Neutron’s Lifetime

Jun 12, 2020 by News Staff

Using data acquired in 2007 and 2008 during flybys of Venus and Mercury by NASA’s MESSENGER spacecraft, researchers found the neutron lifetime to be...

View of a new phase of liquid crystal as seen under the microscope. Image credit: Chen et al, doi: 10.1073/pnas.2002290117.

Researchers Confirm Existence of Elusive Phase of Liquid Crystals

Jun 11, 2020 by News Staff

A team of scientists from the University of Colorado Boulder and the University of Utah has confirmed the existence of a ferroelectric nematic phase of...

Collision event recorded by ATLAS. Image credit: CERN.

CERN Physicists Search for Rare Decays of Higgs Boson

Jun 10, 2020 by News Staff

Physicists from CERN’s ATLAS (A Toroidal LHC ApparatuS) and CMS (Compact-Muon-Solenoid) collaborations presented their latest results at the 2020 Large...

The precision measurements of tritium and helium-3 nuclei reveal new questions in understanding of nuclear structure. Image credit: DOE’s Jefferson Lab.

Experiments with Tritium and Helium-3 Reveal New Questions in Understanding of Nuclear Structure

Jun 9, 2020 by News Staff

Physicists from the Jefferson Lab Hall A Tritium Collaboration have compared the nuclei of helium and hydrogen isotopes to each other to get a clearer...

Neutron Star Cores May Contain Exotic Quark Matter

Jun 2, 2020 by News Staff

Massive neutron stars have sizable quark-matter cores, according to a study published in the journal Nature Physics. An artist’s conception of a massive...

Experimental apparatus used to synthesize pionic helium atoms at the Paul Scherrer Institute. Image credit: ASACUSA Collaboration, CERN.

CERN Physicists Create Atoms of Pionic Helium

May 13, 2020 by News Staff

Physicists from the ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) Collaboration at CERN have successfully synthesized and studied...

An illustration of a quantum radar prototype. Image credit: Philip Krantz / Institute of Science and Technology Austria.

Researchers Create Prototype of Microwave Quantum Radar

May 12, 2020 by News Staff

A team of researchers from Austria, the U.S., the UK, and Italy has demonstrated a new technology called microwave quantum illumination that uses entangled...

This artist’s impression shows how ULAS J1120+0641, a very distant quasar powered by a black hole with a mass two billion times that of the Sun, may have looked. Image credit: M. Kornmesser / ESO.

New Measurements of Fine-Structure Constant Suggest Laws of Nature Not as Constant as Previously Thought

Apr 29, 2020 by News Staff

The fine-structure constant is a measure of electromagnetism — one of the four fundamental forces in nature; the others are gravity, weak nuclear...

Metasurface laser produces super-chiral light with orbital angular momentum up to 100. Image credit: University of the Witwatersrand.

Newly-Developed Metasurface-Enhanced Laser Emits Super-Chiral Light

Apr 28, 2020 by News Staff

A team of scientists from the University of the Witwatersrand, Harvard University and the National University of Singapore has come up with a new metasurface-enhanced...

Majorana quasiparticles on the surface of uranium ditelluride. Image credit: E. Edwards, Illinois Quantum Information Science and Technology Center.

New Measurements Show Evidence for Presence of Majorana Quasiparticles in Uranium Ditelluride

Apr 7, 2020 by News Staff

An international team of physicists has used high-resolution microscopy tools to peer at the inner-workings of the recently-discovered heavy-fermion superconductor,...

The new flat lens could drastically reduce the weight, complexity and cost of cameras and other imaging systems, while increasing their functionality. Image credit: Rajesh Menon, University of Utah.

Scientists Develop Focus-Free Camera with Flat Lens

Mar 18, 2020 by News Staff

A team of researchers from the University of Utah, Salt Lake City, and Oblate Optics, Inc. has created a camera that does not require focusing. The new...

© 2011-2025. Sci.News. All Rights Reserved. | Back to top