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Particle physics

An international research collaboration has confirmed that the potential Higgs boson does ...

Fresh evidence has come to light supporting the theory that the particle detected at CERN's Large Hadron Collider (LHC) in 2012 is indeed the elusive Higgs boson. The work is the result of an international collaboration led by researchers from MIT, and confirms that the potential Higgs boson does exhibit the decay characteristics that would be expected under the Standard Model.  Read More

HADES at the GSI in Darmstadt/Germany searches for dark matter candidates (Image: A. Schma...

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) in Dresden, Germany have analyzed data from the HADES particle detector and concluded that the so-called "dark photons" are not the constituents of dark matter. Dark photons, or U bosons, are hypothetical particles that had thus far been the main candidate for that role, and this new result could make the search for the dark matter particle even more challenging than before.  Read More

Looking back on a year filled with scientific accomplishment

The close of 2013 gives us an excellent opportunity, though satiated with holiday feasts, to look back on a year that has been filled with scientific accomplishment. So it's time to get comfortable on your Binary Chair, sip your hot cocoa from a phase-change mug while your Foodini prints out a batch of cookies and reflect on science stories of note from the past year.  Read More

Roman lead ingot from the Bou Ferrer shipwreck (Photo: Directorate-General de Cultura, Ali...

The study of archaeology has long been carried out using tools from the physics lab. Among these are carbon-14 dating, thermoluminescence dating, x-ray photography, x-ray fluorescence elemental analysis, CAT and MRI scanning, ground-penetrating sonar and radar, and many others. What is less well known is that archaeology has also made substantial contributions to physics. This is the story of old lead; why it is important to physics, and what ethical problems it presents to both sciences.  Read More

The Nobel Medal awaits Francois Englert and Peter Higgs, winners of the 2013 Nobel Prize i...

Following a last-minute delay, physicists Francois Englert and Peter Higgs were today jointly awarded the 2013 Nobel Prize in Physics for their independent formulation of the Higgs mechanism, which supplies fundamental particles with mass. Their theory was recently validated by the discovery of a Higgs boson at CERN's Large Hadron Collider.  Read More

Quantum black hole study finds bridge to another Universe (Image: Shutterstock)

Physicists have long thought that the singularities associated with gravity (like the inside of a black hole) should vanish in a quantum theory of gravity. It now appears that this may indeed be the case. Researchers in Uruguay and Louisiana have just published a description of a quantum black hole using loop quantum gravity in which the predictions of physics-ending singularities vanish, and are replaced by bridges to another universe.  Read More

A schematic drawing of the Q-Weak experiment, showing how the scattered electrons are anal...

Researchers at the Jefferson Accelerator Laboratory have measured the weak charge of the proton for the first time. Early results from the Q-Weak experiment find the weak charge of the proton and the neutron to be consistent with predictions of the Standard Model.  Read More

Inside the tunnel of the Fermilab Main Injector proton accelerator - the driving power beh...

Particle physicists have been eagerly awaiting the first trials of the new Main Injector neutrino beam at the Fermi National Accelerator Laboratory in the US. This new facility is the result of reconfiguration of the Fermilab particle accelerators in the wake of the shutdown of the Tevatron in 2011. The new beam source is now online, and is well on route to becoming the world's most intense focused neutrino source.  Read More

Abell 222/223 galaxies, showing a filament of dark matter stretching between the two galax...

Recently the media has been saturated with overly-hyped reports that NASA's Alpha Magnetic Spectrometer (AMS) may have detected dark matter. These claims may have some justification if the word "may" is shouted, but they rest on a number of really major assumptions and guesses, some of which are on weak and shifting soil. So just what was seen in the experiment, and what are the possible explanations?  Read More

Artist's impression of the ILC tunnels (Graphic: Fermilab/Sandbox Studio)

According to Nature, Japan is the frontrunner for the planned International Linear Collider (ILC), for which Europe and the United States are also in the running to host. Scientists and engineers are already examining potential sites in the island nation for the US$7 to $8 billion machine, which is intended to complement the Large Hadron Collider (LHC) at CERN. The head of the global design effort for the ILC, physicist Barry Barish, presented finalized blueprints at a ceremony in Tokyo earlier this month.  Read More

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