News tagged with quarks
Measurements from high-energy collisions lead to better understanding of why meson particles disappear
For several years, physicists at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL), USA, have studied an unusual state of matter called the quark–gluon plasma, which they ...
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The perfect liquid -- now even more perfect
Ultra hot quark-gluon-plasma, generated by heavy-ion collisions in particle accelerators, is supposed to be the "most perfect fluid" in the world. Previous theories imposed a limit on how "liquid" fluids can ...
Jan 17, 2012 |
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Belle discovers new heavy 'exotic hadrons'
(PhysOrg.com) -- Two unexpected new hadrons containing bottom quarks have been discovered by the Belle Experiment using the High Energy Accelerator Research Organization (KEK)'s B Factory (KEKB), a highly-luminous, ...
Jan 10, 2012 |
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Charming surprise: First evidence for CP violation in charm decays
The LHCb Collaboration has presented today at the Hadron Collider Particle Symposium in Paris possible first evidence for CP violation, the difference between behaviour of matter (particles) and antimatter ...
Nov 15, 2011 |
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Major US atom-smasher closes after 25 years (Update)
A powerful US atom-smasher that was the world's biggest particle collider for nearly a quarter-century closed forever on Friday, solidifying Europe's place as the world leader in physics. ...
Sep 30, 2011 |
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Physicists closing in on the elusive Higgs boson
Scientists at a meeting in Grenoble, France, recently stoked speculation that physicists at the world's biggest particle accelerator may soon provide a first look at the elusive Higgs boson - the final piece of evidence needed ...
Aug 17, 2011 |
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Fermilab experiment discovers a heavy relative of the neutron
(PhysOrg.com) -- Scientists of the CDF collaboration at the Department of Energy's Fermi National Accelerator Laboratory announced the observation of a new particle, the neutral Xi-sub-b (Ξb0). This particle ...
Jul 20, 2011 |
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Hunting the unseen
A better knowledge about the composition of sub-atomic particles such as protons and neutrons has sparked conjecture about, as yet, unseen particles. A tool based on theoretical calculations that could aid ...
Jul 15, 2011 |
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When matter melts: Physicists map phase changes in quark-gluon plasma
In its infancy, when the universe was a few millionths of a second old, the elemental constituents of matter moved freely in a hot, dense soup of quarks and gluons. As the universe expanded, this quark–gluon ...
Jun 23, 2011 |
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New results about the primordial universe from CERN experiments
(PhysOrg.com) -- The three LHC-experiments (ALICE, ATLAS and CMS), which study lead-collisions have presented their latest results at the international Quark Matter 2011 conference, held in Annecy in France ...
May 25, 2011 |
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Physicists observe antihelium-4 nucleus, the heaviest antinucleus yet
(PhysOrg.com) -- In 1932, scientists observed the first antimatter particle, a positron (or antielectron). Since then, scientists have observed heavier and heavier states of antimatter: antiprotons and antineutrons ...
Mar 22, 2011 |
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The heaviest known antimatter
When an international team of scientists working at the Relativistic Heavy Ion Collider (RHIC) announced the discovery of the most massive antinucleus to date — and the first containing an anti-strange ...
Feb 14, 2011 |
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Large Hadron Collider experiments bring new insight into primordial universe
(PhysOrg.com) -- After less than three weeks of heavy-ion running, the three experiments studying lead ion collisions at the LHC have already brought new insight into matter as it would have existed in the ...
Nov 26, 2010 |
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Grant advances quark-gluon plasma studies
Rice University's Bonner Nuclear Lab has won a $1.175 million grant that will support its research on high-density and hot nuclear matter.
Oct 07, 2010 |
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A step closer to Big Bang conditions? More study is needed to confirm the latest LHC findings
Since December, the Large Hadron Collider (LHC) has been smashing particles together at record-setting energy levels. Physicists hope that those high-energy collisions could replicate the conditions seen immediately ...
Sep 29, 2010 |
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