Experiment Produces First Beam of Antihydrogen
The ASACUSA experiment at CERN has succeeded in producing a beam of antihydrogen atoms. In a paper published in Nature Communications, the ASACUSA collaboration reports the unambiguous detection of 80 antihydrogen atoms 2.7 meters downstream of their production, where the perturbing influence of the magnetic fields used initially to produce the antiatoms is small. This result is a significant step towards precise hyperfine spectroscopy of antihydrogen atoms.
Read more: http://www.laboratoryequipment.com/news/2014/01/experiment-produces-first-beam-antihydrogen
Scientists at the world’s biggest atom smasher have found further reasons for the apparent lack of antimatter in the universe.
A team working with data from CERN’s Large Hadron Collider says it has discovered a particle that decays unevenly into matter and antimatter.
Read more: http://www.laboratoryequipment.com/news/2013/04/cern-finds-asymmetry-clue-particle-decay
LHC to Take Two-Year Vacation in March
The world’s largest and most powerful atom smasher goes into a 2-year hibernation in March, aiming to reach maximum energy levels that may lead to more stunning discoveries following the detection of the so-called “God particle.”
Spokesman James Gillies of the European particle physics laboratory known as CERN says the reopening of its $10 billion proton collider in early 2015 will set the stage for observing “rare events” — and unlocking more mysteries.
Read more: http://www.laboratoryequipment.com/news/2013/01/lhc-take-two-year-vacation-march
Understanding the Search for the Higgs Boson
CERN, the European Organization for Nuclear Research headquartered in Geneva, Switzerland, will hold a seminar early in the morning on July 4 to announce the latest results from ATLAS and CMS, two major experiments at the Large Hadron Collider (LHC) that are searching for the Higgs boson. Both experimental teams are working down to the wire to finish analyzing their data, and to determine exactly what can be said about what they’ve found.
Caption: A simulation of the two-photon channel shows what ATLAS sees when the decay of a Higgs boson results in the production of two gamma rays. Image: Berkeley Lab
Read more: http://www.laboratoryequipment.com/news-Understanding-the-Search-for-the-Higgs-Boson-062912.aspx
Physicists from the Univ. of Zurich have discovered a previously unknown particle composed of three quarks in the Large Hadron Collider (LHC) particle accelerator. A new baryon could thus be detected for the first time at the LHC. The baryon known as Xi_b^* confirms fundamental assumptions of physics regarding the binding of quarks.
In particle physics, the baryon family refers to particles that are made up of three quarks. Quarks form a group of six particles that differ in their masses and charges. The two lightest quarks, the so-called “up” and “down” quarks, form the two atomic components, protons and neutrons. All baryons that are composed of the three lightest quarks (“up”, “down” and “strange” quarks) are known. Only very few baryons with heavy quarks have been observed to date. They can only be generated artificially in particle accelerators as they are heavy and very unstable.
Read more: http://www.laboratoryequipment.com/news-CERNs-LHC-Contains-New-Particle-042712.aspx
Researchers View Internal Structure of Antihydrogen
The ALPHA collaboration at CERN in Geneva has scored another coup on the antimatter front by performing the first-ever spectroscopic measurements of the internal state of the antihydrogen atom. Their results are reported in a forthcoming issue of Nature and are now online.
Ordinary hydrogen atoms are the most plentiful in the universe, and also the simplest – so simple, in fact, that some of the most fundamental physical constants have been discovered by measuring the tiny energy shifts resulting from the magnetic and electric interactions of hydrogen’s proton nucleus with its single orbiting electron.
Read more: http://www.laboratoryequipment.com/news-Researchers-View-Internal-Structure-of-Antihydrogen-030812.aspx
Physicists Uncover “God Particle” Hint
Physicists in Europe have reported possible signs of the Higgs boson, a missing piece in the particle-physics puzzle long suspected of giving elementary particles—such as electrons and quarks—their mass. Reporting the latest analysis of collision debris from the world’s highest-energy particle smasher, the researchers do not have enough data to declare a discovery—another round of particle collisions next year should produce more answers—but they gave a likely mass range for the Higgs if it exists. Researchers presented their results in a webcast and widely watched seminar from CERN, the European Organization for Nuclear Research, in Geneva, Switzerland.
Read more: http://www.laboratoryequipment.com/news-Physicists-May-Have-Found-Mass-of-Higgs-Boson-121411.aspx
"The bartender said, “We don’t serve faster-than-light particles here!”
A neutrino walked into a bar."
- From Flávio Gomez who commented on our site.
Faster-Than-Light Neutrinos Baffle Scientists
A startling find at one of the world’s foremost laboratories that a subatomic particle seemed to move faster than the speed of light has scientists around the world rethinking Albert Einstein and one of the foundations of physics.
Now they are planning to put the finding to further high-speed tests to see if a revolutionary shift in explaining the workings of the universe is needed-or if the European scientists made a mistake.
Read the complete story: http://www.laboratoryequipment.com/news-faster-than-light-neutrinos-baffle-scientists-092311.aspx