http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. In the vast particle landscape, there are, to borrow a phrase, known knowns (the Standard Model, for example), unknown unknowns (exotic extensions of the Standard Model and beyond), and those ever-interesting known unknowns. A recent CMS observation perfectly fits into this third category. When looking at proton collisions where a J/ψ and a φ meson are produced, CMS observed two unexplained peaks in the data. The first of these structures is consistent with a similar observation made by the CDF collaboration at the Tevatron in 2009, known as Y(4140). http://phys.org/news275209707.html Physics Thu, 20 Dec 2012 07:08:39 EST news275209707 In 2011, CMS presented early evidence that Upsilon (Υ) particles produced in lead-lead collisions "melt" as a consequence of interacting with the hot nuclear matter created in these heavy-ion interactions. CMS has since updated and extended this result using additional data collected in the 2011 heavy-ion run, and the observation now has a significance of greater than 5σ (or 5 standard deviations), the gold standard for claiming a discovery in high-energy physics. http://phys.org/news275209634.html Physics Thu, 20 Dec 2012 07:07:37 EST news275209634 (Phys.org)—This morning CERN completed the first LHC proton run. The remarkable first three-year run of the world's most powerful particle accelerator was crowned by a new performance milestone. The space between proton bunches in the beams was halved to further increase beam intensity. http://phys.org/news274964914.html Physics Mon, 17 Dec 2012 11:08:46 EST news274964914 Collisions between protons and lead ions at the Large Hadron Collider (LHC) have produced surprising behavior in some of the particles created by the collisions. The new observation suggests the collisions may have produced a new type of matter known as color-glass condensate. http://phys.org/news273220389.html Physics Tue, 27 Nov 2012 06:33:23 EST news273220389 Jets are the experimental signatures of quarks and gluons produced in high-energy processes such as head-on proton-proton collisions. As quarks and gluons have a net colour charge and cannot exist freely due to colour-confinement, they are not directly observed in Nature. Instead, they come together to form colour-neutral hadrons, a process called hadronisation that leads to a collimated spray of hadrons called a jet. http://phys.org/news261218467.html Physics Wed, 11 Jul 2012 09:41:28 EST news261218467 More than 200 members of the ATLAS collaboration gathered on the Stanford campus last week to discuss how to make one of the world's biggest and best particle detectors even better. http://phys.org/news252921953.html Physics Fri, 06 Apr 2012 09:07:10 EST news252921953 (PhysOrg.com) -- After some 180 days of running and four hundred trillion (4x1014) proton proton collisions, the LHC’s 2011 proton run came to an end at 5.15pm yesterday evening. For the second year running, the LHC team has largely surpassed its operational objectives, steadily increasing the rate at which the LHC has delivered data to the experiments. http://phys.org/news239294324.html Physics Mon, 31 Oct 2011 15:38:53 EST news239294324 (PhysOrg.com) -- Want to find out how to Hunt the Higgs Boson using your phone? Ever wondered how the Large Hadron Collider experiments work, and what the collisions look like? http://phys.org/news237399498.html Physics Sun, 09 Oct 2011 17:18:45 EST news237399498 Scientists at the world's biggest atom smasher said Tuesday they appeared to have discovered a previously unobserved phenomenon in their quest to unravel the deepest secrets of the universe. http://phys.org/news204290256.html Physics Tue, 21 Sep 2010 12:17:56 EST news204290256 (PhysOrg.com) -- An experiment led by a University of Alberta researcher, at the Large Hadron Collider (LHC) at CERN, could dramatically change our concepts of basic physics, revolutionize our understanding of the Universe and could eventually lead to technologies in future generations that right now only exist in science fiction. http://phys.org/news188655693.html Physics Wed, 24 Mar 2010 14:00:21 EST news188655693 (PhysOrg.com) -- Three Iowa State University physicists who took winter trips to the Large Hadron Collider for meetings and experimental work are starting to see real data from the planet's biggest science experiment. Finally. http://phys.org/news182012369.html Physics Wed, 06 Jan 2010 15:10:01 EST news182012369 At its 153rd session today, the CERN Council heard that the Large Hadron Collider (LHC) ended its first full period of operation in style on Wednesday 16 December. Collisions at 2.36TeV recorded since last weekend have set a new world record and brought to a close a successful first run for the world’s most powerful particle accelerator. The LHC has now been put into standby mode, and will restart in February 2010 following a short technical stop to prepare for higher energy collisions and the start of the main research programme. http://phys.org/news180358963.html Physics Fri, 18 Dec 2009 11:48:05 EST news180358963 (PhysOrg.com) -- The first paper on proton collisions in the CERN Large Hadron Collider (LHC) - designed to provide the highest energy ever explored with particle accelerators - is published online this week in the European Physical Journal C. http://phys.org/news180094677.html Physics Tue, 15 Dec 2009 10:18:22 EST news180094677